Here’s a really interesting mathematical explanation on how the “catch a dollar” trick works. You know the trick: a person holds a bill vertically and says you can keep the bill if you can catch the ...

Good things come to those who wait – according to a marketing slogan for Heinz ketchup from the 1980s. But why is ketchup so difficult to get out of the bottle? The reason is that ketchup is in two ...

Scientists have found an elegant explanation for the long-standing Fermi-Pasta-Ulam (FPU) problem, first proposed in 1953, investigated with one of the world’s first digital computers, and now ...

Why do I always seem to be hungry? I often ask myself this question, since I used to be rather fat but lost 50 pounds and would like to keep that weight off. Other people say “I’m full” and calmly ...