Impact craterDeath from spaceOther dinosaur extinction theoriesAbout 65 million years ago, at the end of the Cretaceous Period, the Earth was affected by major changes to its environment. Animal…
COMET HALE-BOPPCOMET ORBITSBIOGRAPHY: EDMOND HALLEY English, 1656-1742METEORSFIND OUT MORESometimes icy lumps left over from the birth of the Solar System visit our skies. We see them as comets…
Dates and details of major disasters in sports 1955June 11, Le Mans, France: racing car in Grand Prix hurtled into grandstand, killing 82 spectators.1964May 24, Lima, Peru: more than 300 soccer…
TitrationsChemistryAcids and BasesWhat Are Acids and Bases?Properties of Acids and BasesThe pH ScaleTitrationsBuffers I found a bottle in the stockroom of my lab about a year ago. When I opened it…
Chlamydia: The Most Common STD
Sexually Transmitted Diseases
Introduction Chlamydia: The Most Common STD Genital Herpes Genital Warts and HPV Syphilis: A Sexual Scourge with a Long History…
Chlamydia: The Most Common STD
Sexually Transmitted Diseases
Introduction Chlamydia: The Most Common STD Genital Herpes Genital Warts and HPV Syphilis: A Sexual Scourge with a Long History…
The Final BattlesClassical MythologyAchilles: The Angry Young HeroDon't Try This at Home!To War!The Final Battles Though Achilles himself would not fight, he agreed to lend his armor to his squire,…
William JaggardThomas JamesJeremiah Whipple JenksGeorg JensenNicolas Jenson William Stanley JevonsSteve JobsJohn of SpeyerEldridge Reeves JohnsonEmory Richard JohnsonHoward JohnsonTom Loftin…
More Movies The Apostle Director/Writer: Robert Duvall Director of Photography: Barry Markowitz Editor: Stephen Mack Music: David Mansfield Production Designer: Linda Burton Producer: Rob…
