Month: February 2011

Tin Cans + Bucket of Sand = New Science

Tin Cans + Bucket of Sand = New Science

If you take two empty cans, one closed on the bottom and the other open (i.e. a tube), and turn them upside down, which will be harder to push into a bucket of sand? If, reasoning by analogy to liquids, you (like most people), said the closed oneโ€ฆwell, you can sort of guess where this is heading: A closed can is, in fact, easier to push into a bed of sand than an open tube. Given the usual fine print. Adrian Cho explains over at ScienceNOW:

Ski Tow for Sleds

Josh Smith of Pennsylvania built this tow rope with a friend. This project started as an innocent โ€œoh, I have an engineโ€ comment and has turned into a really awesome project. I first blogged about it here but decided it needed a permanent home. The winch is now fully operational and worked well during our […]

Bjรถrk explains how TVs work

In this video clip, artist Bjรถrk demonstrates how to take apart a television, and explains why you shouldn’t trust poets to explain electronics to you. [via The Amp Hour] More: Make: Online ยป Felt test pattern TV cover Make: Online ยป How-To: Solar TV remote Make: Online ยป Slick TV-B-Gone build Make: Online ยป TV […]