Articles from Science News (February 24, 1990)

Title	Author	Type	Words
Acid assessment: the state of the science.	Raloff, J.		1048
An absence of antigravity.			319
Cosmic radiation creates unfriendly skies.	Cowen, R.		693
Gene jumbling yields improved enzymes.			326
Human AIDS vaccines: mice offer shortcut.	Weiss, R.		649
Lime for your drink? Here's a new twist.	Raloff, Janet		600
Making flea-sized mechanical computers.	Amato, I.		391
More ways to build the same protein.			264
Painting a color portrait of stable orbits.	Peterson, I.		394
Plants under pressure: the touch that stunts.	Decker, C.		575
Pulsar mystery ends: the TV camera did it.	Young, P.		424
Teenagers' drug use drops.			404
The way the baseball bounces.			300
Toward a future with memory: researchers look high and low for the essence of Alzheimer's.	Weiss, Rick		2456
Triple Tourette's.			218
Vanishing amphibians: why they're croaking.	Cowen, R.		601