Gleanings of the Week Ending February 13, 2016

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.

Lava flow crisis averted (for now) – We saw the cooling flow described in this article from Science Daily when we were in Hawaii last December!

We must better communicate the health benefits of nature – Not everyone is outdoors as much as I am --- or has a great view of the outdoors from their office window. I remember an instance when I was outdoors with students on a middle school field trip and realized that many of them thought about the outdoors in terms of streets and parking lots rather than hiking paths, trees, and birds. The hike and what they were seeing was a new experience for them.

Sally Ride reminds us that one thing has not changed for female astronauts – An interview from 1983… the types of questions she got from the press.

Inside the Eye: Nature’s Most Exquisite creation – From National Geographic.

In New Anti-Aging Strategy, Clearing Out Old Cells Increases Life Span of Mice by 25 Percent – A good thing or the modern equivalent of ‘snake oil’? If it does increase life span – how healthy is that extra time?

Sign of early settlement in the Nordic region date back to the cradle of civilization – We think of the transition from nomadic to settlement living happened first in the Middle East but this find in Sweden indicates that it may have happened about the same time in Nordic prehistory.

This uncrushable robot cockroach just wants to rescue you – Building a robot that can compress itself in much the same way a cockroach can…. Another instance of observing nature and implementing the same solution via technology rather than biology.

The Truth about Processed Foods – Every wonder what the difference is between highly, moderate, and minimally processed foods in articles about healthy diet? This article provides some definitions. I changed my food log for a few days to put categorize foods and discovered that most of the foods I consume at home are unprocessed or minimally processed because I make most of what I eat from scratch. There are a few moderately processed foods. The highly processed are things like salad dressing or stir fry sauces; I also drink almond milk which is ‘highly processed.’

Organic Farming could help feed the planet and protect it – A good graphic comparing conventional to organic farming based on some research from Washington State University. One of the authors is quoted as saying: “The challenge facing policymakers is to create an enabling environment for scaling up organic and other innovative farming systems to move towards truly sustainable production systems.” As a consumer – I have already made the decision to buy organic as often as I can.

Mauna Ulu and Sulphur Banks Trail

The first part of our last day in Hawaii was spent in Hawaii Volcanoes National Park. We drove a short distance down Chain of Craters Drive. We made a quick stop to overlook the Kilauea Iki Trail and I couldn’t resist photographing a fern with crescent shaped sori (clusters of sporangia that contain spores….the beginning of the next generation of ferns).

Our first hike was toward Mauna Ulu - a lava landscape formed from 1969-1974. Like the other trails where plants are sparse – it is marked by cairns. But these cairns are harder to spot because there are so many piles of rocks in the landscape. We must have missed a cairn fairly early on and wondered around a little before we found it again.

There are lots of glassy rocks on this hike and sometimes the lava makes little cracking sounds when you walk on it.

My daughter picked up several pieces of rocks for me to photograph – a lot of color and texture variety. She probably should have been wearing her gloves since tiny shards of glass come off these rocks. I got one in my thumb when I picked up one.

I took pictures of plants that were colonizing the lava too. This area gets plenty of rainfall but is still a very harsh environment. The plants manage to find enough for their survival in tiny cracks. Sometimes they appear to grow out of solid rock! Every bit of green or red catches your attention in a place like this.

There were some lava trees that look very ‘fresh’ with distinct and sharp edges.

There is a sparse forest that one hikes through as the trail leads upward. The lava is relatively smooth and compacted by all the previous hikers (i.e. no little cracking sounds when you walk on it). It still takes a lot of energy to walk along the undulating path. We turned around before reaching the end of the hike.

The last hike we did in the park was back near the visitor center – the Sulphur Banks Trail. It is an easy hike along a board walk.  There are vents on both sides. The Sulphur shows up as yellow splotches mixed with white (gypsum), milky glaze (opal), and red (hematite).

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Halema'uma'u Crater

The Jagger Museum in Hawaii Volcanoes National Park overlooks the Halema’uma’u Crater – the main crater of Kilauea, one of the world’s most active volcanoes. During the day, white plumes billow from the crater – some from the center

And some from the sides.

At night, the part of the plume that is visible is smaller – but more dramatic.

It gets even more dramatic using the ‘zoom’ on the camera.

It isn’t the actual molten lava that is visible…but the heat of it just below the rim.

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