I received the following interesting comment. Do any of you have suggestions? Please leave a comment:

I’m a non-engineer doing some work with civil engineers. Here’s my question and quest: I’ll put it a couple of ways, and hopefully you’ll get what I’m after.

I know that in mathematics there are famous problems that have never been solved, and mathematicians are constantly trying to solve them. Occasionally, someone will claim to have solved one of these problems, and sometimes they have. Either way, the announcement makes big news.

Is there the equivalent in engineering? Something like the 10 Toughest Civil Engineering Problems in the Universe? 10 (As Yet) Impossible Engineering Challenges. Maybe something like the perpetual motion machine or the like.

I’m looking for “something” that will tickle the imagination of a civil engineer. Amuse him. Intrigue him. Something that might fit in a smallish, mailable box, but isn’t very costly. Something he or she can play with.

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