Weather Balloons
Weather balloons are released daily from locations all over the world. They fly for about 2 hours, cover up to 125 miles and rise as high as 100,000 feet (almost 19 miles!). A radiosonde hangs below the balloon and gathers information about atmospheric conditions, such as temperature and humidity. CreditsImage, courtesy NOAA (National Oceanic and Atmospheric Administration).
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Biographies
History
- American Colonies
- American Revolution - Highlights
- Assassination of Abraham Lincoln
- Assassination of John F. Kennedy
- Auschwitz: Place of Horrors
- Book Burning and Censorship
Disasters
- America Attacked: 9/11
- Black Death
- Challenger Disaster
- Columbia Space Shuttle Explosion
- Deepwater Horizon: Disaster in the Gulf
- Fatal Voyage: The Titanic