Gleanings of the Week Ending November 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.

The Chemistry of Blood – When I do nature hikes for elementary school children about soil or rocks I always ask them what makes soil or rocks look red (some of them know that it is iron) then I comment that there is iron in our blood too….and that locks it for almost all of them. One time a boy answered my original question with one word: ‘blood’ – thinking he would get a disgusted reaction from me and he was really surprised when I told him the red came from iron in both cases!

Vitamin D pill a day may improve exercise performance and lower risk of heart disease – More evidence that more of us probably need Vitamin D supplements. It’s one I have been taking the past few year.

300 million-year-old 'supershark' fossils found in Texas – Lots of things are ‘large’ about Texas.

The Benefits of Getting Older – They define ‘old age’ and any age over 60! Are you surprised by any items on the list?

Greenland is Melting Away – How they take measures of the ice sheet from the ground…supplementing what can be determined from satellites and drones. The graphics of the rivers on the ice sheet are mesmerizing.

Hunting down hidden dangers and health benefits of urban fruit – When I read the headline I was braced for a lot of negative news…but it turns out that urban fruit is good overall.

Butterflies Weaponize Milkweed Toxins and Wing structure helps female monarch butterflies outperform males in flight – There were two stories about Monarch Butterflies in the news this week….and I saw one – probably migrating – as I was hiking with second graders this week!

Be Mesmerized by the Shifting Complexity of our Sun – The full video is a little over 30 minutes…and there is music too!

The Chemistry of Fireworks: Bangs, Crackles & Whistles – Color gets a lot of attention when it comes to fireworks. This post from Compound Interest is about the other things we enjoy about fireworks.

Hungry for Change: Deer Management and Food Security – Our area has a huge deer population and we have the chomped trees and bushes in our yards to prove it! The idea of combining deer management and food security may be something more communities should consider.

Gleanings of the Week Ending October 17, 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.

One-Third of Cactus Species Threatened – The main dangers to cacti are illegal trade for horticulture and private collections. I was surprised that development in areas where they grow was not high on the list of dangers too.

How to tangle on glass Christmas ornaments – Wow! This is a project I want to try. I’ve already started practicing by tangling on soft drink bottles. It takes some new skills to work on a rounded surface!

Take Free Online Classes, Get Course Credit at MIT – The experiment is a one year program in supply chain management. The first half is online (and free); the second semester is on campus.

What Those Frost Patterns on Your Car Window Have to Do with Ice in Space – The patterns are like abstract art – I prefer to use the defroster rather than the scrapper…watch them melt slowly.

DuPont Predicts CRISPR Plants on Dinner Plates in Five Years –Improving crops by rapidly introducing beneficial gene variants found in other varieties of the same species.

Microsoft’s Very Good Day – Microsoft has a whole new vibe….that became a lot more apparent in early October.

Postcard from Cape Monarch – It would be wonderful to see this many Monarchs on goldenrod here in Maryland. We have seen the butterflies this past summer – but not in the numbers we observed before the mid-1990s.

Dying at home leads to more peace, less grief, but requires wider support -

9 Germ Fighting Facts – Well timed for the beginning of the cold and flu season!

Not your average peacock – Peacock images collect by National Geographic editors

Gleanings of the Week Ending September 02, 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.

New blood test for colon cancer improves colonoscopy screening results - It would be great to have a blood test for initial screening rather than a colonoscopy. Eventually it might happen. I have another 6 years before my next one is due….and hoping the blood test becomes the recommendation before then!

Dos and Don’ts to preserve your brainpower - No surprises in the article…suggestion like “Don’t feast on junk food” are common sense but hard to follow 100% of the time in the modern world. That probably says something about cultural aspects that are wearing down the brainpower of the overall population.

The alien within: Fetal cells influence maternal health during pregnancy (and long after) - The interaction between fetus and mother is two way…and complex. Research is just beginning to explain the mechanisms.

How to choose a Black-eye Susan - It’s the state flower of Maryland and grows well in my garden. I’m going to have more of it next year both in pots and in the front flower beds!

Mexico City’s Ambitious Elevated Park - Creating green space in the middle of a city is a challenge. This example is in the planning stages but it references successful projects in other cities around the world that have tried a similar approach….elevation over traffic or canals.

A Guide to Different Types of Fat - A good review of the nomenclature of fats.

DIY: Compost Bin - You don’t have to be an expert to make your own compost bin!

The Stunning Ways Driftwood Builds Landscapes - From National Geographic.

Take a Virtual Tour of Mount Vernon - I’ve been to Mount Vernon many times - still enjoyed the virtual tour!

The metamorphosis of a caterpillar into a monarch butterfly - A short video showing how the Monarch caterpillar forms its chrysalis…and emerges a butterfly.

Zooming - August 2015

I did lots of hiking with campers in August…and managed some local photography jaunts (like the Butterfly exhibit at Brookside Gardens). As I was creating the collages for this month, I started experimenting with a better way to upload them…so click on any collage below to see a larger version of it! Some highlights of the zoomed images this month are:

• Feather in the grass
• Butterflies and moths
• A toad
• Milkweed pods infested with ?
• Crabapples on the ground before they could mature
• Water droplets on a leaf after a rain storm
• Lichen and moss
• Empty wasp nest
• Golden rod
• Water lily
• Magnolia seed pod

 Enjoy!

 

Brookside Gardens Wings of Fancy - August 2015

We made a second trek to the see the butterfly exhibit at the Brookside Gardens conservatory - a great outing for a guest in town for the weekend.

Often the contrasting colors of the flowers and the butterflies prompts me to take a picture.

Sometimes a tree trunk seems to be a favorite resting place for butterflies. One had at least 6 on it as I walked by.

I wondered how this morpho was still flying. Parts of both wings are missing.

There were several that hung gracefully upside down on their flowers.

Others fluttered to keep their place or move slightly to the next flower. Sometimes the slightly different motion of the two parts of the wing can be detected.

Some butterflies are more colorful on the underside.

When butterflies perch close to each other - resting - I often wonder if they are aware of each other.

Last but not least….I am always on the lookout for Monarchs. I wish we had them in our neighborhood like we did 20 years ago…but now I seem them most often in exhibits like this one.

Gleanings of the Week Ending July 18, 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.

Toward Blood-based Cancer Detection - Lots of promise….but it is still a work in progress.

Buzz Kill for Bumblebees: Climate Change Is Shrinking Their Range - Bumblebees prefer cooler temperatures than many other insects and they like open areas rather than forest. As the ‘normal’ temperatures get hotter, the bee’s southern range is creeping northward but the forests of the north are a physical boundary to their expansion…thus a shrinking area for bumblebees.

Why can’t we move? - A lot of people in the US spend too long commuting…stuck in traffic or on inadequate public transportation. The US has fallen behind the rest of the developed world in our ability to move people to and from and within our cities.

Solving the Energy Efficiency Quandary - It often hard to measure the efficiency of an improvement that is ‘supposed’ to save energy. Not there are some standards emerging that may help do that. It is something needed for homeowners to finally gain enough data to understand the energy use of their home…and guide their decisions re improvements that will have the most impact.

For the Love of Plants - I enjoy botanical prints in old books…and here are some modern ones from botanical illustrator Mindy Lighthipe! (art work) My favorite one is the Monarch Butterfly with milkweed; it includes the Monarch lifecycle.

How free is Your Produce? - How well do you know your 19th century history? Evidently the free produce movement was a food justice movement propelled by Quakers and other abolitionists who hoped to abolish slavery through food ways. And now we have the Fair Trade movement and Fair Food program which are very similar.  

The Chemistry of Ice Cream – Components, Structure, & Flavor - A favorite warm weather treat!

Dragonflies and Damselflies - Check out Elizabeth’s Wildflower Blog --- this time about insects rather than flowers.

Smoke North and Saharan Dust South - Smoke and dust travel a very long ways across land and ocean.

Photography in the National Parks: Framing Wildflowers in the Parks - Good photography tips…and National Parks offer so many subjects to choose from!