Taming Turbulence- Active flow control
The ubiquitous turbulence manifests itself in several seemingly unrelated phenomena, from solar flares to rustling of leaves to the very familiar (and often scary) intense vibration of aircraft. It is an equally important subject in engineering as much it is in science, or perhaps even more.
Crowdsourcing to Combat Natural Disasters
Confusion, paranoia and the overall lack of situational awareness is the largest obstacle faced by relief workers and victims during a disaster or an emergency situation. However, crowdsourcing and some algorithmic implementations can make a relief operation successful.