This guy visualizes the microwaves from a microwave oven using a grid of neon bulbs and explains their distribution pattern. Brilliant!

Here's his explanation for the experiment:

Microwaves are invisible, so you can't see them inside microwave oven, but their presence can be detected with neon lamps. The changing electromagnetic field from the microwaves will make charged particles move, and so the electrons in the metal legs will move creating current. This current makes the lamps glow.

It sucks to get cut. It sucks even more (especially in the hospital) to continually remove a bandage and check for infections. Not only is this process annoying, but it can also increase the chance for infection. Crappy problem, awesome solution: a team of scientists at the Fraunhofer Research Institution for Modular Solid State Technologies in Munich have created a special dye that changes color at different pH's. Healthy skin has an acidic pH of 5 whereas infected skin has a pH in the alkaline range (pH>7). 

"If the pH value is between 6.5 and 8.5 an infection is frequently present and the indicator color strip turns purple," says Dr. Sabine Trupp, one of the lead scientists on the project. This provides an intelligent bandage material that can continuously check for infections without disrupting wound healing. 

What a smart bandage. 

Here's an excellent piece by Miwa Matreyek using music, projections, animations and her own shadow. After a while, I started to get confused between what was real and what was a projection. Seemingly simple animations become very interesting when trying to decipher what Miwa is doing and what the audience is seeing. Very cool. Here's a list of the artists playing in the background: Anna Oxygen, Mirah, Caroline Lufkin and Mileece.