How The "Jaws Of Life" Work - The "Jaws of Life" is a huge tool used to free people from mangled cars and burning or collapsed buildings. Learn about this amazingly powerful machine and how it saves lives.
How Escalators Work - You probably ride escalators all the time, but do you know how they move, and flatten, and keep the handrail in synch with the steps? Find out exactly what is going on inside an escalator.
How Bridges Work - Bridges support tremendous weight, span huge distances and all the while withstand the greatest forces of nature. Find out about these engineering feats (as well as some of the flaws).
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One of the most interesting things about space travel is the drama. Human beings place themselves into amazing vehicles and travel into a completely hostile environment that is almost beyond imagination, and then describe their experiences for us... more
