Blue Tulip Glassware

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Spring has sprung - I’ve put the green glass and red glass plates away. The Blue Tulip Depression Glass will be in the kitchen cabinets until the fall. As I make the change, I think about the old friends that collected it….and allowed me to buy all they had of my favorite pattern and color when they were downsizing. Those memories are good ones and extend back to the beginning of my memories. There are not very many items in my house that evoke that kind of history.

It also feels right to change things for the season inside the house just as so much is changing outside. The colors are lighter - the light is brighter - the days are longer. The Blue Tulip pattern matches the flowers that will be blooming soon and the color of the glass reminds me of summer skies.

Now that I have insulated drapes in my office and the Blue Tulip Glassware in the cabinet - the house is making the shift to spring and summer!

Gleanings of the Week Ending April 11, 2015

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

The dystopian lake filled by the world’s tech lust - It’s in Inner Mongolia…a place that is one of the world’s biggest suppliers of ‘rare earth’ minerals. So sad that we can’t manage to build our tech in a way that is sustainable for the planet.

A Delicate Stone Bridge Creates a Mystical Passage with Its Reflection - After that last story - I needed to look at something beautiful for a bit...and this was it: a picture of a half-circle bridge reflected in water to complete the illusion of a full circle.

Bombing Range Is National Example for Wildlife Conservation - Elgin Air Force Base had 300 year old trees and is home to the last remaining old-growth longleaf pines in Florida…there is a natural resources visitor center and has 250,000 acres open for public recreation/wildlife habitat.

Erupting Volcanic Lightning! - A volcano on Mexico’s west coast.

A complex landscape has both vulnerabilities and resilience to climate change - Changes in the length of growing season and timing of rainfall will change the forests in Central Appalachia over the next century….and probably in the area of Maryland where I live too.

Can You Identify 20 Of The Most Common Birds in North America? - The quiz is here. Identify the bird pictured from the list - you’ll know if you got it right immediately. How many can you identify? I got 15 out of 20!

Theoretical study suggests huge lava tubes could exist on moon - So - how long will it take to have a mission to the moon to discover if the lava tubes exist?

Essential Spring Guide '15: On the Road to Castles of Stone and Wood Turned To Rock - This story brought back memories of the vacation to northeastern Arizona last January! My picture of Montezuma Castle is below!

Yellowstone by Moonlight - A 3 minute film that includes a series of time-lapse views of moonlit scenes in Yellowstone - including geysers and stars. I don’t have the patience for this kind of photography but I enjoy seeing the work of others.

MIT Climate CoLab Asks All For Impactful Climate Plans - Contests seeking high impact ideas on how to tackle climate change…submission due 5/16/2015. The Climate CoLab site is here.

Master Naturalist Field Trip - Part 2

After the hike along Trolley Trail between Banneker Historical Park and Museum and Ellicott City on Saturday (previous post), our group headed to the Avalon area of Patapsco Valley State Park. The Thomas Viaduct - a railroad bridge that crosses the Patapsco River and Valley just inside the park. It was completed in 1835 and still carries railroad traffic!

In our previous Master Naturalist classes we had learned about the history of the area from colonial times. Where the sign talks about Elkridge Landing as a port looking unimaginable today; the silt and dams have changed the river tremendously since colonial days when Elkridge Landing was a significant port.

The CCC built building in the park and we visited one. It was built of stone and there was an interesting nest (wasps?) near the ceiling of the porch. The inside is evidently riddled with termites - beyond repair.

There is a sewer pipe is exposed along the river. It was uncovered during the flood caused by Hurricane Agnes in 1972 - and there is not stable way to cover it again. The river was stocked a few days before our hike; a little boy was fishing with his day and joyously held up a fish they’d caught for us to see as we were walking on the swinging bridge over the Patapsco.

We saw a couple of skunk cabbage just poking up from the leaves.

The main green was moss. This log with green cap was a welcome relieve from the brown leaves.

There was some color in the rocks too if you looked closely…a lot of big crystals in pegmatite.

And what’s not to like about water tumbling over rocks…and down to the river. It was a good last ‘uphill’ for the day. We’d been out and about since 8:30 and it was 4:30. The Master Naturalist field trip was history.

Coursera - April 2015

My Coursera workload in March was light because of the Master Naturalist course workload during the month. It will pick up a little in April.

I finished up the video/reading portion of Australian Literature: a rough guide (University of Western Australia) in March. I appreciated the approach of selecting readings to demonstrate contradictory perceptions: coast and center, home and away, justice and injustice…all with the backdrop of Australian landscape and history. I was surprised at how deep the historical context turned out to be in a short course but perhaps any course about a literature fitted into a national boundary has to bring that nation’s history to the fore.

I started one course during March: Maps and the Geospatial Revolution (The Pennsylvania State University) and it will continue though most of April. It has a linkage to the project I am doing for my Master Naturalist certification - involving a map, of course.

Water in the Western United States (University of Colorado Boulder) is the next course to start (today!). In Maryland, our challenge is more often water quality rather than quantity…in the Western US, the challenge is both.

Now that I have successfully ramped down my Coursera activities so that I could focus on the Master Naturalist class - I’m thinking about the way I want to enjoy Coursera offerings going forward. An annual cycle of activity is beginning to emerge for my volunteer and vacation activities - with peaks in the spring and fall. Should I try to make the peaks for Coursera workload in winter and summer? Is it even possible? It is so hard to not sign up for a course that interests me whenever it is offered!

Master Naturalist Field Trip - Part 1

Last Saturday was the day-long field trip for our Master Naturalist class. It was very cold but everyone bundled up and headed out from the Benjamin Banneker Historical Park and Museum. We saw a replica of the type of cabin that would have been on the property when Banneker lived there and marveled that the property was purchased with 7,000 pounds of tobacco. Dried tobacco is very light so we assumed it must have still been green…but that is still a lot of tobacco.

One of the first stops was the Banneky House built in the mid-1800s - long after Benjamin Banneker’s time. Our focus was the rocks on its exterior! This wall showcases Ellicott City Granite with the small, very dark pieces being amphibole.

We started to walk down the pathway of the park to the Trolley Trail that would take us into Ellicott City. The trolley stopped in 1959 and the rail to trail occurred in the 1990s. The forest was not an old forest and there were some houses (some very new ones in the mix) built fairly close to the water. The weather has been too cold for wildflowers to be blooming but there were other things of interest. I always stop for shelf fungi and these with gray/white/rust rings were nestled into some green lichen….the color and texture was eye catching.

There was water trickling everywhere…and the most seemed very green against the backdrop of rocks and brown leaves left over from last season.

The bed of moss has fruiting bodies! Note that the height of the whole plant is only about 2-3 inches.

We saw frogs eggs - but the frogs were silent in the cold (and probably burrowed somewhere to keep warm).

There were swirls in some of the rocks beside the trail. Thinking about the metamorphosis of rock under pressure requires a conscious effort to understand a timescale that is beyond our normal comprehension.

We get down to Ellicott City in time for lunch. The decision to eat at a restaurant (and warm up) rather than picnic was welcomed by all.

I noticed the cairns in the little park across from the restaurant. At least two types of rocks were easy to spot!

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The post that marks the water level above the normal river height during various floods is at the river end of Main Street in Ellicott City. The one in 1868 is at the very top of the bridge railing. That would have flooded two floors of the buildings! At that time the area would have been heavily farmed - most of the forests would have been fields so the water would have run off quickly from a storm. The 1972 mark is from Hurricane Agnes. Some forest had grown back but there was beginning to be a lot of housing development. More has been built since then. What would happen if a storm like Hurricane Agnes happened again today? A lot of impervious pavement has been added to the watershed. Are there enough forested buffers and rain gardens to slow down the flow of stormwater during a big storm?

After lunch, our group carpooled to the Avalon area of Patapsco Valley State Park. I’ll post about that part of the field trip later this week.

Gleanings of the Week Ending March 28, 2015

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

A Visual Guide to Chemistry Glassware - A vocabulary lesson in glassware!  Probably everyone knows the difference between a test tube and a beaker…but what about a conical flask and volumetric flask?

From soda bans to bike lanes: Which 'natural experiments' really reduce obesity? - Which changes have made an impact? Studies that included longer follow-up periods after a change showed stronger results. Two examples of changes with strong impact were trans-fat bans and active transportation infrastructure improvement.

50% Driving Ban for Paris Due To Air Pollution - Weather conditions in Paris cause spikes in air pollution this time of year. We normally thin of the larger cities in India and China having the worst air pollution problems. The World Health Organization estimated that air pollution contributed to the deaths of 7 million people in 2012…so it is not an insignificant issue for the world.

Science Photographer Reveals Beauty of the Microscopic World - Manipulation of light through the microscope: transmission, differential interference contrast, optical staining, or dark field contrast.

Adapting to climate change will bring new environmental problems - Can we adapt in a sustainable way…or will our adaptation be short-sighted - and bad for the planet in the long term?

Archaeologists discover Maya 'melting pot' - Evidently mobile groups of hunter gatherers came together with settled groups for construction projects and public ceremonies --- they interacted much more than previous thought. They eventually became more uniformly sedentary.

Genome Study Predicts DNA of the Whole of Iceland - The DeCode project has collected enough full DNA sequences from Icelanders to extrapolate to the whole population (because the people are related). From this analysis, they know that 2,000 people in Iceland have the BRCA2 gene….but cannot tell them. The ethics associated with new technology is complex. In this particular case there is a “right ‘not to know’ of genetic hazards.” With more and more genome data being collected - other nations will soon have the same issue Iceland is facing now.

The Last 200 Years Of U.S. Immigration In One Chart - Click in the upper left corner to enlarge the plot. The overall trend is as interesting as where people came from. World War II had quite an impact while World War I did not.

SolarCity to build its own power grids - The market for solar technology seems to be developing very quickly. There are so many more options now than there were 5 years ago. When will the tipping point come…when more people will have solar - or some form of renewable energy where they live and work.

Compulsive Behavior Sells - Habit-forming technology….a little scary. How quickly will people train themselves to realize that it is happening?

Gleanings of the Week Ending March 21, 2015

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Nine superfruits and super seeds to add to your diet - I eat 3 of the 9 frequently (chai, flaxseeds, and blueberries)!  There is only one that I haven’t added to my diet (yet): Acai berries.

There May Be More Water on Jupiter's Largest Moon than on Earth - Subterranean oceans - on Ganymede. It wasn’t so long ago that we assumed that the Earth’s oceans were unique…and now we are thinking that maybe they aren’t.

World's most iconic ecosystems: World heritage sites risk collapse without stronger local management - These sites have importance to world…the researchers argue for stronger local management. That is needed but these ecosystems are connected to other ecosystems are not iconic but may be critical to sustaining these designated iconic areas. We have to start thinking about how we sustain the Earth - worldwide - more often than we’ve ever done before.

Cherry Tree that needs pruningPrune Trees like a Pro - This post has good diagrams. I noticed it this week just as I was thinking about what I need to do first in my yard and decided pruning was high on the list; our cherry and plum both need it.

Archaeologists Uncover Ancient Egyptian Tombs with Stunning Murals - They were found near Luxor. Isn’t it amazing that there are still things like to be found in places that have been intensely searched for over a century? Hopefully they will be preserved in a way that the colors remain as vivid as they are now.

Towels top kitchen contamination hazards list - Ugh! I think I’ll start putting out a fresh towel every day.

The World’s Largest Solar Energy Projects - Some projects from India and California…these are huge installations.

Oncologists reveal reasons for high cost of cancer drugs in U.S. - There is a list of some potential solutions at the end of the article. One that sticks out is to allow the FDA or physician panels to recommend target prices based on the drug’s magnitude of benefit (i.e. value based pricing). Why has our system allowed something other than value based pricing to be the norm? Hurray for the doctors that are standing up for their patients!

10 National Monuments you’ve never heard of - Vacation ideas. I always like to keep these in mind to add to the itinerary of a trip to the area. I’ve been to El Malpais several times. Maybe next time I visit Tucson - Chiricahua will be a day trip.

Chitin, a structural molecule associated with allergy response, is identified in vertebrates - A few weeks ago, I learned that chitin (the material of insects’ exoskeletons) is in the cell walls of mushrooms…and then this article about chitin in fishes and amphibians! And chitin has been shown to be an excellent material for biodegradable plastics!

Gleanings of the Week Ending March 14, 2015

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Karnak: Excavation yields 38 artifacts - New techniques and new finds at Karnak.

71% of Investors Are Interested In Sustainable Investing - It’s positive news that more people are voting for sustainability via their investments.

New Study Pinpoints Where Ocean Acidification Will Hit Hardest - Not only hardest…but earliest. The ocean does not acidify uniformly. Estuaries with excess nutrients will acidify more rapidly. Not a good new message for the Chesapeake Bay’s shell fish industry.

Boosting older adults' vision through training - The core of the message from the research was positive but it was frustrating that the next steps were all about more research. If the initial research finding holds - then why is there not already a strategy activity to think through how vision training could be delivered to larger numbers of people at low cost.

By separating nature from economics, we have walked blindly into tragedy - We live in complex world…making decisions based on simplifying assumptions that ignore the environment or economic or social aspects are perilous.

New research into materials for tooth fillings - The composite that is most common right now is problematic because it requires adhesive to bond to the tooth, needs to be illuminated with a lamp to harden, and needs to be replaced more frequently. A new material - glass ionomer cement - may be the filling material of the future.

Widely Used Antibiotics Affect Mitochondria - The environmental accumulation of tetraclines might be harming us in ways that are just now being studied. Scary.

Epoch-defining study pinpoints when humans came to dominate planet Earth - Two dates jump out: 1610 with the irreversible exchange of species between new and old worlds and 1964 associated with the fallout from nuclear weapons testing. Either way - humans have driven Earth into a new epoch…the Anthropocene.

Fun Parks to Visit in the Top 10 Cities for Wildlife - Staycation fodder. There are interesting parks in most areas of the country. These 10 are clearly the tip of the iceberg!

Did Neanderthals make jewelry 130,000 years go? Eagle claws provide clues - From a site in present day Croatia dating from 130,000 years ago.

Gleanings of the Week Ending March 7, 2015

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

'Bionic' eye allows man to see wife for first time in a decade - The system is not yet advanced enough to provide high resolution vision - but it is enough to improve quality of life….and sets the stage for more development of similar devices. Certain types of blindness (caused by retina problems, not the optic nerve) are candidates for this type of ‘bionic’ eye.

Global Pesticide Map Shows Large Areas of High Water Pollution Risk - Enlarge the map in this article; what is the risk in the area where you live? In mine is high/very high…..that’s not good.

Economic models provide insights into global sustainability challenges - Making decisions based on simplifying assumptions - which is what we normally do - may not be wise. The advent to models that can help us integrate what we know about global economics, geography, ecology and environmental sciences may provide some surprising insights and lead to better decisions.

Twelve Milkweeds for Monarchs - Wow! There are a lot more different kinds of milkweed than I anticipated.

Food Additives Linked to Inflammation - Yet another reason to reduce the amount of processed food you consume.

Special Tours Offered At Mesa Verde National Park - Something to remember about Mesa Verde. My husband I enjoyed our visit almost 40 years ago and have been talking about visiting again.

Lab-on-paper developed for rapid, inexpensive medical diagnostics - Point-of-care testing is projected to expand over the next few years. Imagine not having to wait for several days to get lab results for your annual physical!

Nine steps to survive 'most explosive era of infrastructure expansion in human history' - Bottom line: The builders of infrastructure need to consider the full context of their projects….not just who will benefit.

The Chemistry of Colored Glass - Glass is one of my favorite materials. This post includes a graphic that talks about what is added to the basic soda-lime glass to create different colors of glass.

Seven strategies to advance women in science - Good points. We’ve been trying some of these things for at least the past 40 years…..maybe it is doing ALL of them that will make the difference.

F. Kaid Benfield: How to Create Healthy Environments for People - There seem to be quite a few articles this week with lists. Here is the last one! All these ideas seem to make sense….so why are they not already part of the way development takes place?

Gleanings of the Week Ending February 28, 2015

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Pollinator Partnership Planting Guides - Planning a garden? How about giving the pollinators in your area a boost too? This site has a planting guide for ‘ecoregions’ in the US - accessed by entering your zipcode!

A Wet and Wild look Inside the 'Mushroom Houses' Of a Fungi Farm - Ever wonder how mushrooms you buy in the grocery store are grown? This post includes a short video. If we had household gardener robots - would you grow mushrooms as well as vegetables?

The Surprising, Depressing Reason Why City-Dwelling Robins Sing at Night - When I saw the picture at the front of this post, my first thought was “that’s not a robin.” But it is - a European robin. I was thinking of the North American variety. It is disturbing that our lights are messing up circadian rhythms - our own and other organisms.

What is the oldest city in the world? - It is surprisingly controversial. How many of the possibilities in the article have your heard about before?

Deconstructing mental illness through ultradian rhythms - A study that suggests that regular meals and early bedtimes may lead to a better life and prevent the onset of mental illness. The study discovered a new dopamine-based rhythm generator. The full paper is available here.

Retracing the roots of fungal symbioses - Mycorrhizal fungi live on the roots of host plants where they exchange sugars that plants produce for mineral nutrients that fungi absorb from the soil. It is hard to visualize - and often not well understood. Now genomics is being applied. Climate change will put whole new stresses on symbiotic relationships. I hope the knowledge gained from this type of research will help us maintain or increase food production as the environment changes.

Liquid Biopsy - Fast DNA-sequencing machines are leading to simple blood tests for cancer - There are some technologies that are so appealing…that you wish they were already available. But it is not easy. So far - the work is for specific types of cancers. The ability to do faster DNA sequencing is improving the prospects.

Ocean circulation change: Sea level spiked for two years along Northeastern North America - Climate change and the Atlantic Meridional Overturning Circulation (AMOC)…most of the models predict a weakening of the AMOC over the 21st century and it appears that there was changed in the 2009-2010 time frame.

Computational Anthropology Reveals How the Most Important People in History Vary by Culture - This study looked at articles about significant people in the English, German, Chinese and Japanese language versions of Wikipedia as a data source.

These Brilliantly Colored Bolivian Buildings Look Like Alien Spaceships - Wow! Almost too much color…but certainly different than the majority of buidlings.

Gleanings of the Week Ending February 21, 2015

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Add nature, art and religion to life's best anti-inflammatories - Yet another reason to savor the awe of nature, art and spiritually - if you need one. Including these in day-to-day living should not be a hard sell but many times they fall by the wayside if our lives get too full of other things. They don’t go on a ‘bucket list’ for some other time; they need to be included every day!

In a crisis, the bigger your social network, the better - This research indicates that more extensive social networks are a backup strategy for crises - or at least it was in the pre-Hispanic Southwest. Is it always the case? Sometimes it seems that all the increased communication going on in the modern world has increased the divides rather than built positive networks.

Never trust a corporation to do a library’s job - The history of Google and Internet Archive as ‘library.’

High Stakes in Declining Monarch Butterfly Populations and Six Ways to Save Monarchs - The rapid decline of Monarch butterflies is very sad….but there are things to do. I am going make the dominant plant in my chaos garden beginning this year!

How the Eastern tiger swallowtail got 'scary' - Another butterfly story. I bought some tiger swallowtail earrings (one is the caterpillar and the other is the butterfly) so this article captured my attention.

The Chemical Compounds behind the Smell of Flowers - The smell of roses, carnations, violets, lilies, hyacinth, chrysanthemums, and lilacs. The only flower whose smell is not produced with compounds containing ring structures is the lily.

Increasing individualism in US linked with rise of white-collar jobs - A lot has happened in the last 150 years…including a higher percentage of the population working in white-collar jobs. This study showed that the trend in type of job was more correlated with the trend toward individualism that some other changes such as urbanization or frequency of disease or disasters.

How Tourist Garbage Causes Yellowstone's Morning Glory to Change Color - The color of the Morning Glory pool is no longer the blue color of its namesake. Too many people have thrown coins, rocks, and trash into it. This article reports on why the trash caused the change.

Larger area analysis needed to understand patterns in ancient prehistory - In the past, the main tools used to study prehistory only addressed very small areas. Now there is an acknowledgement that some conclusions cannot be drawn with only those small samples and technologies that can look at larger areas are being applied more frequently to understand how cultures responded to population pressure and climate change in particular.

An ocean of plastic: Magnitude of plastic waste going into the ocean calculated - More than 4.8 million metric tons of plastic waste enters the oceans from land each year; it could be as high as 12.7 metric tons. That’s a lot of plastic. The ocean seems so vast…but we are pushing it in ways that it may not be able to absorb without huge impact to itself and the planet.

Electrochromic polymers create broad color palette for sunglasses, windows - What fun! I’d like these in the windows of my office rather than sunglasses! Maybe the window could be powered by a solar cell.

3 free eBooks - February 2015

It was hard to pick my three favorites this month. I settled on three topics: Mayans, Fungi, and Chinese Painting.

Maudslay, Alfred Percival. Biologia Centrali-Americana, or, Contributions to the knowledge of the fauna and flora of Mexico and Central America. London: R. H. Porter and Dulau & Co. 1902. Four volumes available from the Internet Archive: volume 1, volume 2, volume 3, volume 4. These books focus on the archeology of a region - primarily Mayan - in the late 1800s that has gotten more attention over the past century. There are lot photographs (sometimes with people to help understand the scale of the ruins) and drawings. There are also a few color plates. The photograph at right is quite well know (it’s in the Wikipedia entry for him and is in many textbooks). Many of the ruin were roughly cleared of vegetation or still partially obscured at the time Maudslay documented them.

Banning, Mary Elizabeth. Fungi of Maryland. Available via the New York State Museum here. This is an online exhibit more than a book but I am including it here to show off the beautiful illustrations done by Mary Banning. She began her work in 1868 and continued for over 20 years producing 174 detailed 13” x 15” watercolor illustrations. The online exhibit includes 48 of them. Unfortunately - she was unable to get her work published; she sent it to the New York State Museum as a ‘safe place’ in 1890; it was found again 91 years later in 1981.

 

Barnhart, Richard M. Peach Blossom Spring Gardens and Flowers in Chinese Painting. New York: The Metropolitan Museum of Art. 1983. Available from the Internet Archive here. Some of the images are very colorful and some are muted. I particularly liked the muted image of the lotuses.

Wupatki National Monument

The first time I visited Wupatki it was a very hot June day and I can remember taking the short walk around the site vividly. I drank almost all the water I had with me and got very hot….and the walk to the ruins is short - within sight of the visitor’s center. In January - it was cold and breezy with snow still on the ground. We didn’t need to carry water although I did refill my water bottle and drank most of it as we drove away; high altitude and dry air is dehydrating even if it is cold.

It is easy to visualize how the ruins could have been homes. They are a neat cluster of walls even today. The stone walls often incorporate larger boulders of the site.

Sometimes the lintels above the windows and doors held….and sometimes they didn’t.

There is a community room in the center of the settlement in a natural depression that still held some snow. Further away there was a ball court.

The old wildlife I saw was a very cold rabbit sitting in the sun. Note the pock marks (like mini-potholes formed wind and sand) and striations on the rock above the rabbit.

Next time I go to Wupatiki I want to plan more time to see some of the other areas...but I enjoyed this area near the visitor center even more than I did the first time around.

Coursera - February 2015

Only two courses in progress for me right now! It takes a lot of will power to not sign up for more; there are competing activities this month: travel and classroom-based courses. Here are the two that will keep me busy in February.

Circadian clocks: how rhythms structure life (from Ludwig-Maximilians - Universitat Munchen (LMU) is off to a good start with a mix of history of the research and vocabulary. It’s a topic that is interesting and has lots of implications for health and well-being.

The Land Ethic Reclaimed: Perceptive Hunting, Aldo Leopold, and Conservation (from University of Wisconsin-Madison) started off by having student pick an avatar that reflected their perspective of the course topic. I chose ‘naturalist;’ it will be interesting to see the demographics of the other students in the course. I like the way the instructors are using surveys and probing questions along with the typical MOOC videos, reading list, and discussion forums.

Two courses finished in January:

Recovering the Humankind’s Past and Saving the Universal Heritage (from Sapienza University of Rome) was a more philosophical course than I expected. It included discussion of the science/technology of archaeology and how it developed over time which is what I expected. But the more thought provoking parts of the class were about the concept of ‘universal heritage’ and why it is important; the relationship of wars and destruction of material culture of the past is striking. It happens alongside the human lives lost and plight of refugees in Syria and Iraq.

Origins - Formation of the Universe, Solar System, and Life (from University of Copenhagen) was a very broad course taught by a team of people from the Natural History of Denmark. It was a good update on what has been discovered since I was in college in the 1970s. Scanning Science Daily over the years helps - but it was refreshing to get a fresh update that tied it all together in an organized way.

As usual - I thrive on having some new topics to learn about and Coursera is a prime avenue for that. Hurray for Coursera!

Gleanings of the Week Ending January 31, 2015

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

At 90, She's Designing Tech for Aging Boomers - She was a designer all her life! Good for her…for the company that is using her ideas…good for consumers.

Telescope to seek dust where other Earths may lie - This article caught my attention because my daughter recently was there for a ‘field trip.’ The Large Binocular Telescope Interferometer (LBTI) is run by University of Arizona.

Sleep tight and stay bright? Invest now, researcher says - I am so lucky to be able to go to sleep easily and awake on my own after 7-8 hours. This study says (once again) that good sleep is linked to a lot of good health and mental outcomes. One of the joys of post-career is not waking up with an alarm clock!

The lip of the caldera - I couldn’t resist sharing this picture of the inside wall of Santorini.

Decorative and flexible solar panels become part of interior design and the appearance of objects - I enjoy technology that is functional and beautiful. So many times the engineers focus exclusively on functionality.  

Should arsenic in food be a concern? - The answer in this article was ‘no’ but I was frustrated that they focused primarily on plant foods and did not mention the status of nitarsone/histostat (an organoarsenic compound used in poultry production).

Boston's leaky pipes release high levels of heat-trapping methane - Not good for Boston and probably many other older cities….and worse is that there is little economic incentive to make the necessary investments to reduce the incidental losses from leakage.

What to do in a flu epidemic? Stay at home and watch TV - This was a study to assess the effectiveness of non-pharmaceutical interventions (NPIs) during epidemics - particularly of flu.

The Chemistry of Highlighter Colors - Download the graphic (link at the bottom of the article) and take a look at how the colors are made.  Note how that they have a lot of ‘rings.’

Is Hospice Losing Its Soul? - My grandmother’s last few months were spent at home under hospice care; the hospice support to her and our family was invaluable. This article is troubling because the trend in hospice is toward standardization/institutionalization….not the tailored, compassionate practice that has been the strength of hospice from its inception. I hope there are enough people that will demand that hospice stay true to its roots.

Montezuma Castle National Monument

Montezuma Castle National Monument is a good stop on the way between Tucson and Flagstaff. The reconstructed ‘castle’ is in a large depression in the cliff face. But everywhere there are smaller spaces that were walled to make storage areas

And on flatter ledges near the base of the cliff there are walls were there were other dwellings.

Water is nearby. It is easy to imagine why this was a place people chose for building/farming.

In one of the rock niches on the cliff, there were combs of bees (I used my camera zoom to 30x)!

There is good signage for native plants like Desert Christmas Cactus

And Arizona Sycamore. The Arizona Sycamores look different than the ones we have on the east coast. There is green shading in the peeling bark and the lobes of the leaves are deeper.

Next time I am in the area, I want to plan enough time to check out Montezuma Well that is part of the same National Monument but not contiguous with the castle area.

3 Free eBooks - January 2015

There are so many good eBooks available these days. My favorite source is the Internet Archive because it brings together other repositories and displays them in several formats. I like the ‘Read Online’ format when I am read on my laptop and PDF when I reading on my tablet. The Kindle and Full Text formats often are not as good because the transition from the image to digital text is not corrected….and I prefer to have the illustrations inact!

Bezold, Carl. Ninive und Babylon. Bielefeld und Leipzig: Verlag con Velhagen & Klafing. 1903. Available from the Internet Archive here. I wondered as I looked at the black and white photographs how many of these items were still whole and close to where they were originally found. In the early 1900s archaeologists carted items back to their native countries. The trend now it to keep items of material culture closer to where they are found --- although that is problematic when wars erupt and the museums and sites are caught up in the destruction such as in Iraq and Syria in recent years.

Burn, Barbara (editor). Masterpieces of The Metropolitan Museum of Art. New Haven and London: Yale University Press. 2006. Available from the Internet Archive here. So many treasures….a ‘coffee table’ book with lots of wonderful photographs. Last month I included a Degas ebook from the museum (and from their site); I was surprised, and thrilled, that so many of the museum’s books are also on the Internet Archive!

 

 

 

Bois, D. Atlas des plantes de jardins et d'appartements exotiques et européenes. Paris: Klincksieck. 1896. Available on the Internet Archive here. I can’t resist books of botanical prints. Many are easily recognizable - like the hibiscus below.

Touring the Laboratory of Tree-Ring Research

I enjoyed the docent led tour at the Laboratory of Tree-Ring Research at University of Arizona last week. The Bannister Building, where the lab is located is quite distinctive - with a scrim of articulated metal tubes. The wind was not blowing on the morning of our tour so we didn’t hear the sound of the tubes in motion.

Inside we wondered around the lobby before the tour. I was looking for various ways the large tree cookies were labeled. I liked the simple white arrows that showed the semantics used: pith, early wood, late wood, branch trace, fire scar, cambium and bark.

Here is a closer look to understand what a tree ring is (the center of the tree cookie is to the lower left of the image). Note that the rings are not all the same…their width reflects the growth conditions for the year they were growing.

And some trees live for a very long time. The labeling on the tree cookie from the Giant Sequoia that lived 1704 years is labeled with more information.

When the docent arrived, we were invited upstairs into one of the labs to talk with one of the researchers who showed us how the sample cores from trees are collected and mounted. The tree-ring lab is multidisciplinary; many specialties are required to glean the information from the samples. I was intrigued by the cross section on one of the upper floors that was very different than concentric rings. This would take a lot of finesse to interpret!

I’ve included two close ups to show the dates labelled on the specimen.

One other tidbit I picked up from the docent: on the elementary school tours, the children are given a small tree cookie (~3 inches in diameter) and the children sand it to reveal the tree rings! That would certainly be a memorable learning experience!

Life’s Decades - The Sixth 10 Years

Today I am focused on the sixth decade of life. For me - it was mostly in the 2000s and included the melded joys of career transitioning to post career and the growing independence of my daughter.

My sixth decade started with my daughter still in high school. The family enjoyed vacations - trying to see as many states as possible before she graduated. After she got her learner’s permit for driving, we made a big loop road trip from Maryland to Chicago. She handled a driving experience I had never encountered: a blown out tire on the freeway. I suppose a child learning to drive is a ‘white knuckle’ time for most parents. The only technology that might change the scenario in the future would be self-driving cars.

Visits to college campuses with my daughter were a vicarious treat. Being part of her decision making process helped my husband and I realize just how ready she was to be independent - not financially but in the way she took ownership for decisions about her future. She applied to 4 colleges and was accepted to all 4 - and went off to Cornell.

Some parents may suffer from ‘empty nest syndrome’ but I didn’t. I was still too busy with work and my daughter called us frequently enough (using time when she was walking some distance on campus) that we knew quite a few details about her college life. The advent of cell phones (and ‘plans’ that have unlimited minutes) have made a huge difference for families that want to communicate via telephone. Long distance used to be an expensive luxury. Now easy and inexpensive telephone calls are transitioning from a luxury (a ‘want’) to a need; it is coming close to being part of basic infrastructure in the developed world. They continued past her graduation from Cornell.

Pretty soon my daughter established a relationship with the young man she would marry before the end of my sixth decade. They were in the same dorm building and then apartment. When it came time for graduate school applications - they both applied to some of the same schools and decided to go to University of Arizona. As soon as they were financially independent (with graduate student funding), they got married. It seems that my daughter’s experience finding a life partner was very similar to my own; it happened early and marriage became the obvious choice very quickly.

Shortly after my daughter become financially independent it because obvious that I could retire and my husband phase down on his workload too. We both rekindled interests we’d left behind in our 20s: biology for me and astronomy for him. It took me a year to settle on some volunteer activities that were focused on areas I where I wanted to make a tangible difference in my community: Neighbor Ride to provide transportation to senior citizens and environmental education offered to students by the Howard Country Conservancy. I also realized just how much I enjoy being a student; the advent of Coursera was perfect for me.

Life’s Decades - The Fifth 10 Years

Today I am focused on the fifth decade of life. For me - it was mostly in the 1990s and included the melded joys of motherhood and career.

My career required long hours and some travel. Most of the time I could adjust the attention and time for the job to mesh with the needs of my family. There was always an underlying tension between the different aspects of my life but it didn’t seem to escalate to unhealthy levels of stress. I had decided to keep a journal when I first became pregnant in my fourth decade; the original motivation was to record what was happening to me…but a side benefit was that l inadvertently learned to ‘write it down, let stressful aspects go.’ In retrospect - journaling was a key part of my maintenance of well-bing in the most stressful time of my life: the fifth and sixth decades. I still do it (in my seventh decade now) but its primary importance is as a record of my life.

Do people always learn a lot from their children? I certainly did. When my daughter was in kindergarten and first grade, I realized that I was holding her to higher standard of learning than I was myself….and I made some changes. Being a linear thinker (inclination and education), I started using tools like mindmaps to change my pattern. I started reading a wider variety of books and taking notes. The growing content available through the Internet over the decade helped too. In the end, I don’t know that I ever did reach the delta that we expect of children as they learn to read, write and compute in their early school years. It is awesome how much they change in a few short years.

While every working mother probably experiences guilt from not being in the right place at the right time for some incident in her child’s life - the incidents where my daughter made her acceptance loud and clear stand out in my mind more. One such incident was when she was in first grade and there was a parent visit day in her classroom. I told her I was leaving work early to come home and change clothes to be dressed like the other moms rather than in my business suit by the time I arrived at her school (I was working for IBM and wearing a lot of dark blue suits/white shirts at the time). She told me to come in the suit! I did…and looked different than the other parents…but she was accepting (maybe even pleased) with the difference.

The decade seems like a blur of kite festivals, aquariums, museums, national parks, hikes, gardens, ice shows, and music lessons….there were times that we all decided a weekend at home was absolutely required. There were projects to. We finished our basement which was quite a learning experience for us all.

The activity level of my fifth decade was driven by having a child in my fourth decade. Women that have children earlier - or later - could have a different trajectory because of where they are in their career and their level of health. It surprises me to realize that I happened upon very good timing for me!