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10 Homebuilt Tech Tools for the Developing World
electronics.howstuffworks.com/everyday-tech/10-homebuilt-tech-tools-for-developing-world.htm
Homebuilt tech tools and DIY technologies can greatly improve people's lives. Learn about 10 DIY homebuilt tech tools for the developing world.
10 Surprising Facts About Astronaut Training
science.howstuffworks.com/10-surprising-facts-about-astronaut-training.htm
NASA astronauts have to undergo serious training before becoming approved for a trip to space. But some of that training is certainly not what you'd expect.