Archive for the ‘Nature’ Category

Is green technology a mirage?

June 9, 2020

If a problem cannot be solved, it may not be a problem, but a fact.  [Attributed to Donald Rumsfeld]

It is possible to ignore reality, but it is not possible to ignore the consequences of ignoring reality.  [Attributed to Ayn Rand]

A new Michael Moore movie, “Planet of the Humans,” is an attack on the renewable energy movement.  Environmentalists by and large are outraged, and some demanded the movie be suppressed.

It actually was taken down from YouTube for 11 days, but it’s back up now.  If it is taken down again, you can view it on the Planet of the Humans Home page.

It runs for 100 minutes, which is a long time to watch something on a computer screen.  But it held my interest, and maybe it would hold yours, too.

In the first part of the movie, director Jeff Gibbs shows that solar panels and windmills are built through energy-intensive industrial processes and that they are made of materials such as high-grade quartz and rare earths that are scarce and non-renewable.

Solar panels and windmills wear out and have to be replaced.  In one scene, he visits Daggett, California, which pioneered in the development of solar and wind energy.  He sees a wasteland of dilapidated panels and windmills, because the pioneers couldn’t afford to keep them up.

And they don’t even fully replace fossil fuels.  Because of variability of sun and wind, backup electrical generators have to keep spinning, and the ones that aren’t hydroelectric use coal, gas and nuclear fuel.

In the second part, he looks at the environmental destruction caused by biomass energy.  There is no gain from freeing yourself from dependence on coal companies and embracing logging companies.

He makes a big point of pointing out the corporate ties of environmental organizations such as the Sierra Club and of environmentalists such as Al Gore, Robert F. Kennedy Jr., Richard Branson and even Bill McKibben.

He questions the whole premise, promoted by advocates such as Al Gore, that it is possible for middle-class Americans to enjoy our current material standard of living simply by adopting a new technology.

Fossil fuels made possible a world with an exponentially increasing population with the average individual using an ever-increasing amount of fuel and raw materials, Gibbs said.  Such a world isn’t sustainable, he said.

(more…)

Under the electron microscope

March 28, 2020

There are many more than 10 amazing images in this video, although none of the coronavirus.

The coming of spring

March 15, 2020

Coyote and badger hunt as a team

February 8, 2020

Coyotes and badgers sometimes hunt together as a team.

When the coyote chases a ground squirrel, the squirrel will take refuge in a burrow.  When the badger digs a ground squirrel out of a burrow, the squirrel will emerge from a different hole and run away.

Teaming up, the coyote and badger catch more prey than they could hunting apart.

The Hopi and Navajo have stories about the tricky coyote and stolid badger working together.  I myself never knew about this until I saw these videos on kottke.org.

Kangaroos hopping through the Australian snow

August 25, 2019

This video was shot about two weeks ago in New South Wales, Australia, where it is, of course, winter.

I understand that it’s a mistake to attribute human emotions to animals, but these guys sure look like they’re having a good time.

Peregrine falcons are feathered fighter jets

August 24, 2019

Peregrine falcons have a top speed of more than 200 miles per hour.

I found this video from KQED Deep Look on the Boing Boing web site.

Light shining through hummingbird wings

July 13, 2019

Photographer Christian Spencer shot these pictures of jacobin hummingbirds from his verandah in Rio de Janeiro.  The translucent wings act as a kind of prism that turns each bird into a tiny rainbow.

(more…)

Flying with migrating birds

April 27, 2019

Hat tip to kottke.org.

A giant floating ice disk forms in Maine

January 19, 2019

This video, taken last weekend, shows a massive spinning ice disk in the Presumptscot River near Westbrook, Maine, which is just west of Portland.  Local residents say it is 100 yards across, which would make it possibly the largest such ice disk on record.  Wonders never cease.

Click on A Massive Naturally Occurring Ice Carousel by Jason Kottke for more information.

From the Big Bang to the origin of humanity

December 22, 2018

This 10-minute history of the universe shows all the amazing things that had to happen in order for the human race—that is, for you and me—to exist.

It’s quite a story.  My question is: Where are we in the story?  Are we near the end?  Or at the beginning?  Or somewhere in the middle?

I grew up reading science fiction, and envisioned the human race spreading out to the planets, then to other solar systems and perhaps other galaxies.  I now realize this can’t be taken for granted, but I also know I don’t have the knowledge to set limits on the future.  If life is a rare event in the universe, could it be the destiny of humanity to spread life beyond its point of origin?

Or are we at the end of the story?  Is it the destiny of the human race to use its intelligence to wipe itself out—through nuclear war, through plague, through runaway global warming or just through loss of the will to live.

Or is the history of civilization is just a blip in the life of a species evolved to be hunter-gatherers?

Migratory birds hitch rides on merchant ships

November 17, 2018

Caterpillars on parade

November 10, 2018

I can’t help but find this funny.

The total weight of life on earth

August 18, 2018

A group of scientists have written a paper for the U.S. National Academy of Sciences estimating the weight of the different kinds of life on earth.

The total carbon in all living things amounts to 550 billion metric tons, they wrote.  A metric ton is 2,200 pounds.

The weight of all the world’s plants is an estimated 450 billion metric tons.

The world’s bacteria weigh 70 billion metric tons.

All the world’s animals weigh only 2 billion metric tons, of which 1 billion tons consists of arthropods (including insects).

All the world’s humans total a mere 60 million metric tons.

Put another way, life on earth is, by weight, 82 percent plants, 13 percent bacteria and 5 percent everything else, of which 0.01 percent is human life.

(more…)

The awesome beauty of a lightning storm

August 11, 2018

Click to enlarge

Gabriel Zaparolli took this striking long-exposure photo of a lightning storm over the outskirts of Torres, Rio Grande do Sul, Brazil, during the evening of June 10, 2018.   I found it on the kottke.org web log.

A brave little kidney bean becomes a plant

August 4, 2018

I found this video on the kottke.org blog.  It is a time-lapse photo of a kidney bean sprouting into a plant, shot at the rate of one shot every 9 minutes 36 seconds and played at the rate of 30 frames per second.

The little bean seems strangely gallant to me.  It makes me feel proud to be a carbon-based life form.

Hellgrammites

November 18, 2017

Hellgrammites were much prized as bait when I was growing up in western Maryland along the Potomac River, but I never knew exactly what they were.   Now I do.

LINK

What the Heck Is a Hellgrammite? by Jeffrey Hahn for the University of Minnesota Extension Service.

Fall foliage in New York’s Central Park

September 23, 2017

These time-lapse photos were taken by Jamie Scott. over a period of six months in Central Park in New York City.  He visited 15 locations, two days a week, just after sunrise, from August, 2011, through January, 2012.   The music is by Lower Dens.  I found this video on the Colossal website.

Flowers that bloom in the spring

May 13, 2017

These time-lapse photos were taken by Jamie Scott over a period of three years.  The background music is an original composition by Jim Perkins.   I found this video on the Colossal and kottke.org web sites.

Siberian tigers hunt and capture drone

March 11, 2017

Click on boing boing for details.

The beauty of fog

February 18, 2017

fog-waves-583facc887432__880

I never thought of fog as beautiful.  Or that it could come in waves.

fog-waves-583face1b93d5__880

These photographs were taken by Nick Steinberg over an eight-year period in the San Francisco Bay area, using high peaks such as Mount Tamalpais as his vantage point.  What a labor of love that must have been!

fog-waves-583fad4ae9344__880

It’s good to remember that there are other things in the world besides politics and economics.

(more…)

Seeing with an eye of an eagle

February 4, 2017

An eagle with a Sony video camera flew off the top of Burj Khalifa, currently the world’s tallest building, in Dubai, enabling us to (sort of) see what an eagle in flight sees.   It’s too bad there is no footage of the eagle’s last few feet of flight before landing, but the footage is still something to see.

Winning underwater photography of the year

March 5, 2016

Organizers of the 2016 Underwater Photographer of the Year Contest shared some winning entries with The Atlantic’s In Focus feature.

1.goldmain_900

Davide Lopresti’s photograph of a seahorse was the overall winner.  It was taken off Trieste, Italy, in a part of the Mediterranean set aside for the restocking of this endangered species.

(more…)

‘Despite all our accomplishments …’

November 26, 2015

unnamed-file

And also to those who farm the land.

Source: The Grey Enigma.

Hat tip to The Tin Foil Hat Society.

The wonders of weather

September 30, 2015

1. Brinicle

weatherphenomena-wcth01-640x359

Brinicles are the underwater equivalent of icicles. They form beneath ice when a flow of saline water is introduced to ocean water.

2. Volcanic Lightning

weatherphenomena-wcth02-640x376
Volcanic plumes produce immense amounts of electrical charge and static. In rare cases, this can spark a violent lightning storm.

3.  Sprites, Elves and Blue Jets

weatherphenomena-wcth03
These colorful shapes are the result of electrical discharges in the atmosphere.

(more…)

The Superman of the animal kingdom

August 23, 2015
elephant-life-advice

Click to enlarge.

Source: Medium-Large

Hat tip to Avedon’s Sideshow