Archive for the ‘science’ Category

Microorganisms: How micro are they?

September 27, 2018

Comparison of some of the smaller microorganisms. A video by Alvaro Gracia Montoya.

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Ocean acidification explained in 2 minutes

September 21, 2018

“Ocean acidification explained in 2 minutes,” a Grist video animated by Amelia Bates and written by Amelia Urry.

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Martian Water

July 26, 2018

Martian Water

There’s a 12-mile-wide lake of liquid water a mile beneath the southern ice cap of Mars. The discovery was made using the Marsis radar instrument on board the European Space Agency’s Mars Express, which has been orbiting the red planet for 15 years. Thirsty astronauts shouldn’t expect instant refreshment, though. The lake is filled with salt water.

More:

“Mars: huge underground lake raises prospects of life on planet, astronomers say,” Ian Sample, The Guardian

“A 12-mile-wide body of water lies beneath a Mars ice cap,” Carolyn Y. Johnson, Washington Post

“Scientists detect giant underground aquifer on Mars, raising hope of life on the planet,” Loren Grush, The Verge

“Liquid water ‘lake’ revealed on Mars,” Mary Halton, BBC News

“Deep within Mars, Liquid Water Offers Hope for Life,” Lee Billings, Scientific American

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Image by Mike Licht. Download a copy here. Creative Commons license; credit Mike Licht, NotionsCapital.com

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Walking On Water

May 14, 2018

Water striders (aka pond skaters) flitter across the surface of ponds and slow-moving streams. How do they walk on water, and why? A KQED video.

Read more here.

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Dinosaurs: What Color Were They?

May 11, 2018

From Eons/PBS Digital Studios.

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Equinox

March 20, 2018

Equinox

March 20th marks the Equinox, when day and night are of equal length. The March Equinox is often called the Spring or Vernal Equinox in the Northern Hemisphere (where days will now get longer) and the Fall or Autumn Equinox in Southern latitudes (where days will start to shorten).

Okay, days still stay 24 hours long, it’s the periods of daylight that get longer and shorter. Come on, lighten up. The UN says March 20th is also the International Day of Happiness.

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Image by Mike Licht. Download a copy here. Creative Commons license; credit Mike Licht, NotionsCapital.com

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Ocean Acidification: A Crash Course

February 20, 2018

As the ocean absorbs carbon dioxide from the atmosphere, it’s becoming more acidic—eroding the shells of marine life vital to the food web. Jim Toomey illustrates the issues. Produced by the Pew Trusts.

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Fahrenheit

October 9, 2017

“What the Fahrenheit?” A Veritasium video narrated by physicist Derek Muller, animated by Marcello Ascani.

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Misconceptions About Global Warming

August 29, 2017

“13 Misconceptions About Global Warming,” corrected by Derek Muller of Veritasium.

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Forage Fish

August 9, 2017

Herring, menhaden, anchovies, sprats, silversides, smelt, sardines. These fish play a massive role in the ocean’s ecosystem. Jim Toomey illustrates why they’re important. Produced by the Pew Trusts.

More about forage fish here.

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