It's time for national elections in the US, and many citizens feel like they can't get good representation, no matter how they vote. Much of the problem is our "Winner Take All" system of voting — it's easy to explain but has *huge* flaws. Here is a series of 5 videos (total 28 minutes) that talks about the problems, and some much better (but slightly more complicated) alternatives.
In the video below, a team built two computers out of dominoes. The first was capable of adding any two numbers between 0 (zero) and 7 (seven). The second computer they built was capable of adding any two numbers between 0 (zero) and 15 (fifteen).
The computer you are using right now, deep under the covers, does everything in terms of binary addition. What about the other operations you ask? Continue reading "A computer built out of dominoes?"
Kind of hard to explain, but try to imagine ball bearings that aren't spheres. If you have the slightest interest in engineering or math, definitely worth the 10 minute video.
A clever (but slow) way to "see" wifi signals.
This project explores the invisible terrain of WiFi networks in urban spaces by light painting signal strength in long-exposure photographs.
A four-metre long measuring rod with 80 points of light reveals cross-sections through WiFi networks using a photographic technique called light-painting.
Who knew you could use 4500 Legos to build a box that opens into a pop-up Japanese temple ? Fast forward about 30 seconds to get to the part where he opens to reveal the pop-up. Stay with the video for close-ups of the mechanism.