Large tractor-trailers have a reputation of being involved in rather horrific accidents, often involving death and carnage among smaller passenger vehicles. The giant rigs, according to some transportation experts, may have outlived their usefulness on crowded highways, and perhaps it is time that people rethink their presence on the roads. In…

National Aeronautics and Space Administration (NASA) has already sent many technological instruments into outer space. All these instruments were designed and built especially to operate in harsh and alien environments. How do NASA engineers know what kinds of planetary instruments to develop in the first place? Well, they ask. Once engineers…

In this article, the author describes an activity he introduced to his engineering drafting students that involved a Tootsie Roll product. In this particular activity, he assigned his students to find out how many licks are needed to get to the center of a Tootsie Roll Pop. He first asked his students to do some research if an answer exists for…