Jump rope aerodynamics

WASHINGTON, D.C., November 21, 2010 — Jump ropes are used by kids for fun and by athletes for training. But what about the underlying physics? How do jump ropes work? Can important engineering principles be studied?
Jeff Aristoff and Howard Stone…

Should airplanes look like birds?

WASHINGTON, D.C., November 21, 2010 — Airplanes do not look much like birds — unless you were to imagine a really weird bird or a very strange plane — but should they? This question is exactly what a pair of engineers in California and South Afr…