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Posts tagged oxygen

March 7, 2014

 

Even oxygen-breathing animals as ancient as trilobite didn't come around until long after Earth's atmosphere had become oxygen-rich.

A Change In The Air

Most of us take our oxygen-rich atmosphere for granted. Once upon a time, though, Earth's air was very different.

December 23, 2013

 

The Sun, which is composed of a great deal of hydrogen itself, could be the key to producing hydrogen fuel cleanly and sustainably here on Earth.

Sun, Water And Clean Fuel

Scientists and University of Colorado, Boulder may have come up with a way to make hydrogen fuel cleaner.

September 24, 2013

 

What is your resting heart rate?

Heart Rate: What A Baby’s Heart Rate Should Be

How do you think a baby's heart rate compares to adults?

July 5, 2013

 

Whales and dolphins, such as the humpback whale shown here, are among several groups of mammals that have evolved the ability to make prolonged dives under water.

The Evolution Of Diving In Mammals And Myoglobin

The protein myoglobin provides new clues to the evolution of diving in mammals.

May 16, 2013

 

The air at the top of Mount Everest is much thinner than the air at sea level, making it more difficult to breathe

Air Pressure On Everest

Planning on climbing Mount Everest? You might want to plan to be gasping for air. Learn more on this Moment of Science.

May 2, 2013

 

Sleeping With Plants

Can sleeping in a room full of plants can be dangerous? A common myth states that, at night, plants compete with people for oxygen!

April 25, 2013

 

Have you ever experienced altitude sickness?

What Causes Altitude Sickness?

Many indigenous people live in areas of low oxygen concentration with few adverse effects. The big question is, how do they survive?

March 11, 2013

 

Have you ever seen a sled dog race?

What Kind Of Dogs Are Sled Dogs?

In movies like Call of the Wild, huskies pull sleds for hundreds of miles over the Alaskan tundra. A Moment of Science wonders, what kind of dogs are sled dogs?

February 6, 2013

 

Make sure to drink plenty of fluids when you're sick!

Why Do You Become Dehydrated When Sick?

If you have a runny nose and a fever, you'll need to drink more to replace those lost fluids. But why?

January 23, 2013

 

Do you believe in alien life?

Is There Life On Other Planets?

Some simple sugars detected by astronomers, glycoaldehydes, are thought to be the basic building blocks of life.

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