I support the space program for a lot of reasons. In a practical sense there are so many things we use every day that are possible because of the basic research done in the space program such as plastics, metallurgy, fuels, etc. Also, its a practical provingground for military hardware. After all, the space race wasnt about exploration, it was about targeting ICBM's. The applied science used to put a man on the moon is the same that puts an artillery shell on a pie pan at 10 miles or an ICBM on a missle silo in Asia. Cell phones, satellite TV and internet, all these things come from the lauch and use of satellites. Lastly, and to me most important is the future of the human race. No matter if global warming is real or not, pollution is real or not, or anything else mankind does sometime the sun will cease to exisit and so will life on earth. By continuing to explore and eventually colonize in space humanity is no loner limited to depending on this one tiny planet for its survival.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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