Zothecula writes: Given that scientists are already looking to sea sponges as an inspiration for body armor, perhaps we shouldn’t be surprised that foam is also being considered... not just any foam, though. Unlike regular foam, specially-designed nanofoams could someday not only be used in body armor, but also to protect buildings from explosions.
Today's scientific question is: What in the world is electricity?
And where does it go after it leaves the toaster?
-- Dave Barry, "What is Electricity?"