What causes a rainbow? A rainbow in Indiana, Oct. 2015. Source: AP Photo/Michael Conroy Although light looks colorless, it’s made up of many colors-red, orange, yellow, green, blue…
—By Karen Barss The story of human evolution began in Africa about six million years ago and it describes the very long process that our ancestors went through to ultimately become modern humans.…
HOW LONG IS THE GREAT WALL OF CHINA? WHEN WAS HONG KONG A BRITISH COLONY? WHERE DO CHINA’S 1.3 BILLION PEOPLE LIVE? WHY ARE FISH IMPORTANT TO THE JAPANESE? WHAT IS UNUSUAL ABOUT THE GOBI DESERT?…
HOW ARE SOUNDS MADE? HOW DO MUSICAL INSTRUMENTS MAKE MUSIC? WHY ARE SOUNDS DIFFERENT? WHAT IS RESONANCE? SOUND FREQUENCY SOUND WAVESDIGITAL SOUNDFIND OUT MOREOur world is full of sounds. Sound is…
(Encyclopedia) jewelry, personal adornments worn for ornament or utility, to show rank or wealth, or to follow superstitious custom or fashion.
The most universal forms of jewelry are the necklace,…
(Encyclopedia) cattle, name for the ruminant mammals of the genus Bos, and particularly those of the domesticated species, Bos taurus and B. indica. The term oxen, broadly used, refers also to…
The 43rd Annual Grammy Awards were presented at Los Angeles' Staples Center on February 21, 2001.Record:“Beautiful Day,” U2Album:Two Against Nature, Steely Dan (Giant Records)Song:“Beautiful Day…
Friends, Romans, countrymen, lend me your ears Tragedies • Histories • Comedies William Shakespeare Related Links William ShakespeareQuiz: Famous Quotes from…
From Epidemic to PandemicHIV/AIDSIntroductionThe Birth of a DiseaseFrom Epidemic to PandemicWhere Did HIV Come From?Diagnosis & Anti-HIV TherapyVaccination & Natural ResistanceLessons Learned…
