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Posts tagged oxygen

March 11, 2013

 

sled dogs racing

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

 

water droplets on a gray background

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

 

alien toy with earth behind

Is There Life On Other Planets?

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

October 23, 2012

 

human body book

How Does The Body Make Blood?

The body must produce the liquid part of blood, called plasma, and the cells that float in it.

October 2, 2012

 

pink and purple dragonfly resting on a branch.

In The Past, Insects Were Huge!

Scientists have found fossilized remains of dragonflies with wingspans several feet in diameter.

April 20, 2012

 

chocolate with anxioxidants

Are Antioxidants The Fountain Of Youth?

Reading ads for antioxidant supplements, you'd think you'd found the fountain of youth. What are antioxidants and how do they work?

March 28, 2012

 

child underwater holding breath

How Much Breathable Oxygen Gas Is There In The Atmosphere?

I have a friend who says there's not much oxygen on earth. Ever since I heard that I can't catch my breath! What's the truth?

March 12, 2012

 

Fossil shells

Scientists Use Ancient Shells To Learn About The Past

If you needed to know what the weather was like in Singapore tens of millions of years ago, you'd have to consult a different source.

March 6, 2012

 

mountain climber on a mountain

Why Does Altitude Cause Headache?

Mountain climbers face many dangers as they brave the cold winds of the peaks they climb. But the most serious thing they face is all in their heads--literally.

March 5, 2012

 

swarm of jellyfish

What Is Causing The Swarms Of Jellyfish?

Scientists have been finding swarms of jellyfish, called blooms, all over the world.

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