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Originally Posted by TigerLily
and have they actually developed any or is this all theory and guessing??
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Ever use velcro? Own a GPS device? Drank Tang? Do you have smoke detectors in your home or office? Do you own a cell phone?
Do you watch the weather? Can't have accurate weather predictions without space...nor would the ability to watch the weather in the first place exist, since all networks use space to transmit their programming.
How about flown in a plane or bought a car in the past 20 years? The composites used in those wouldn't exist without space exploration.
All of these developments would not be with us today without the space program, and some would not be here without the space shuttle. Not to mention the countless experiments done on life (spiders, ants, birds, humans...their bodies all react differently in space). And only more inventions can come from this.
The shuttle is the most complex machine ever built on this planet. We should use it, and we should strive to make it better. And, when the time comes, we should replace it. But we should never give up.