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Get the Point?

The discus and javelin first appeared in ancient game competitions in 708 B.C. Javelin events included both target throwing and distance throwing using a sling. By 1780, the javelin was adopted as an event by the Scandinavians, and the current one-handed throwing style while running was adopted at this time. In 1953, a hollow javelin was developed ...

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DiscusJavelin
Medicine

Hypotension

Bend to select a book from the lowest shelf, then rise quickly. Chances are, you'll feel a little lightheaded for a few seconds. The reason is a drop of blood pressure caused by the change in ... Continue reading

Hypotension
Medicine

How a Horse Can Save Your Life?

Most people who have been vaccinated with the smallpox vaccine never really question what exactly was injected into their body. If they did, they might be surprised, and maybe thank a horse or two. ... Continue reading

HorseLife
Geology

The San Andreas Fault

Scientists have learned that the Earth's crust is fractured into a series of 'plates' that have been moving very slowly over the Earth's surface for millions of years. Two of these moving plates meet ... Continue reading

TheSanAndreasFault
Biology

Is It Sexism or Racism?

Can you judge a cat by the color of its coat? Well, you can judge the gender by the color of its coat! Only 1 in 27 orange cats are girls, and more surprisingly, only 1 in 3000 calico cats are males! ... Continue reading

SexismRacism

NASA's First Historic Challenge

NASAsFirstHistoricChallengeIn a time of uncertainty at home and abroad, an American president proposes bold new steps in the exploration of space. He calls for 'longer strides' which 'may hold the key to our future here on Earth.' He touts the potential of 'even more exciting and ambitious exploration of space, perhaps beyond the moon, perhaps to the very end of the solar system itself.' The year is 1961. The president is John F. Kennedy. But the words ring true today, as NASA aims for new frontiers with a new Vision for Space Exploration. Kennedy's 'Special Message to Congress on Urgent National Needs' came on May 25, just three weeks after Mercury astronaut Alan B. Shepard became the first American in space. Delivered at the height of the Cold War with the Soviet Union, the speech is best known for Kennedy's audacious challenge to NASA and America. 'I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the moon and returning him safely to Earth.'

NASA fulfilled that goal on July 20, 1969, when Apollo 11's lunar module Eagle touched down in the Sea of Tranquility, with Neil Armstrong and Buzz Aldrin aboard. A dozen men would walk on the moon before the Apollo program ended. The last of those men, Gene Cernan, left the desolate lunar surface with these words: 'We leave as we came and, God willing, as we shall return, with peace and hope for all mankind.' Now, NASA is indeed looking to return to the moon, as well as planning new journeys to Mars and beyond. Much has changed in the 43 years since Kennedy's speech. Our Cold War Soviet rivals are now our Russian partners on the International Space Station. And the technological feats Kennedy helped initiate have spawned countless tangible benefits on Earth. Medical technologies, weather forecasting, computer technology and telecommunications can all trace their origins to the space program.

What hasn't changed is the spirit of exploration and discovery. Announcing NASA's new initiative in January 2004, President Bush put it this way: 'Mankind is drawn to the heavens for the same reason we were once drawn into unknown lands and across the open sea. We choose to explore space because doing so improves our lives, and lifts our national spirit.' Chris Cassidy, a member of NASA's 2004 astronaut class, puts the need to explore in more personal terms. 'I hope to be the next guy on the moon.'