A Moment of Science

Posts tagged hemoglobin

May 30, 2013

 

insects pinned to a board

Why Is Insect Blood Green Or Yellow?

You've probably heard someone use the phrase "blood red," but have you ever wondered if all blood really is red in humans?

April 25, 2013

 

Colorado mountains

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?

May 11, 2012

 

mount everest

Two Climbers Climbed Everest Without Supplemental Oxygen. How?

Although Everest had first been climbed in 1953, this was the first successful ascent to be made without supplemental oxygen.

April 18, 2011

 

nodules on plant stem

Nitrogen-Fixing Bacteria Perform Valuable Service

The bacteria take nitrogen out of the air and make it available to other living organisms in an amazing process.

March 1, 2011

 

kids dressed up for halloween

Vampire-Like Symptoms Occur With Hereditary Porphyria

The legend of the vampire, Dracula, may have had its basis in a very real disease known as Hereditary Porphyria.

June 5, 2008

 

An green bruise after giving blood

Green Bruises

If blood is either red or blueish, depending on the presence of oxygen, why are bruises sometimes black, green, brown, or even yellow?

August 7, 2007

 

Emergency personnel at car accident

Plastic Blood

Scientists are developing a type of artificial blood for use in emergencies. Learn more on this Moment of Science.

August 12, 2004

 

Crime Scene Investigation

For those of you who watch a lot of crime shows, this segment is for you. "Crime Scene Investigation" on this Moment of Science.

March 24, 2004

 

You Gotta Have Hearts

What creature has more than one heart? Find out on this Moment of Science.

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