A Moment of Science

Posts tagged cells

November 26, 2012

 

pretzels close up with salt

Which Makes You Thirstier, Salt Or Sugar?

Chow down salty chips or pretzels, and soon you'll be guzzling your favorite drink. But snacking on sugary foods makes you thirsty, too.

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.

February 23, 2012

 

dna origami

Telomeres: The Key To Aging

Cell copies are not perfect--the chromosome isn't copied all the way to the tip. That's where telomeres come in handy.

January 11, 2012

 

drawing of a brain - sketched

Is My Brain Static Or Constantly Changing?

Scientists used to think that for all its complexity, the brain was pretty static. But... is this true today?

December 5, 2011

 

painted turtle

Painted Turtles Have A Natural Antifreeze

Although painted turtles don't have much else in common with automobiles, their wintertime coping strategies include antifreeze, too.

September 28, 2011

 

eggs in a carton

When You Eat An Egg Are You Eating A Baby Chick?

Were the eggs we buy in the supermarket once embryos?

September 6, 2011

 

vines on a black background

How Do Vines Twist And Turn?

How does the vine know to twine, and in what direction?

May 18, 2011

 

green and blue antibiotics pills

When Antibiotics Don’t Work…

New strains of antibiotic-resistant bacteria are appearing faster than scientists can discover new antibiotics.

April 26, 2011

 

Red and yellow antibiotic pills

How Antibiotic-producing Bacteria Avoid Suicide

The antibiotics help those microorganisms survive by attacking other bacteria competing for the same food supply... but how do they protect themselves?

April 6, 2011

 

statue staring at the sun

Why Do I Sometimes See Tiny Moving Dots?

Those tiny dots are actually blood cells moving in the retina of your eye.

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