What Does NASA Stands For?
NASA is an organization that develops and controls space research in the USA. It is an independent agency of the U.S. federal government responsible for the civilian...
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How Do Satellites Stay up While Orbiting the Earth?
Satellites are any objects that revolve around (orbit) another object in space. Some satellites are natural, while others are artificial (man-made). The moon is an...
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Where Is Tristan da Cunha?
Tristan da Cunha is one of five small and remote islands in the South Atlantic midway between Buenos Aires in Argentina and the Cape of Good Hope, South Africa. Tristan...
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Who First Traveled the Length of the Amazon?
A party of Spanish explorers led by Francisco de Orellana became in 1541 the first Europeans to travel the length of the Amazon River. The journey followed a meeting in...
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Who Discovered the Cure for Scurvy?
Who Discovered the Cure for Scurvy? Scurvy was documented as a disease by Hippocrates, and Egyptians have recorded its symptoms as early as 1550 BCE. The knowledge that...
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