Month: April 2010

Arduino-powered kinetic sculpture

MAKE subscriber Rich Gilbank of Toronto, ON wrote in to share this project: Anthros is a project I began working on as my fourth-year university thesis project for New Media at Ryerson University (Toronto, Canada). It uses open source tech (OpenFrameworks, Arduino) to make large tentacle-like nodes follow a user through a space. It was […]

Fold-up “robotagami” figures

Fold-up “robotagami” figures

Lubbock, Texas artist Dustin Wallace, whose larger one-off/limited edition transforming robot sculptures I mentioned a couple of weeks ago, also makes these wicked little “robotagami” dudes that are CNC-cut from sheet metal (stainless steel or copper), ship flat, and get slotted together and folded up to make a dimensional figure by the buyer.

Lady Banks Rose

Lady Bank’s Rose is a delicate evergreen rose with tiny, puffy yellow flowers. Currently one is just breaking into bloom above the CRAFT and MAKE offices. The best thing about this evergreen beauty is that she is thornless. Thornless! Lady Bank’s is a vigorous climber and flowers freely throughout spring and summer. It’s easy to […]

Distributed earthquake monitoring using laptop accelerometers

Distributed earthquake monitoring using laptop accelerometers

Newer models of laptops manufactured by companies like Apple and Lenovo contain accelerometers — motion sensors meant to detect whether the computer has been dropped. If the computer falls, the hard drive will automatically switch off to protect the user’s data.

“As soon as I knew there were these low-cost sensors inside these accelerometers, I thought it would be perfect to use them to network together and actually record earthquakes,” says geoscientist Elizabeth Cochran of the University of California, Riverside.

So a few years ago, Cochran got in touch with Jesse Lawrence, a colleague at Stanford. They whipped up a program called the Quake-Catcher Network. It’s a free download that runs silently in the background, collecting data from the computer’s accelerometer and waiting to detect an earthquake.

Laptop accelerometers aren’t as sensitive as professional-grade seismometers, so they can only pick up tremors of about magnitude 4.0 and above. But when a laptop does sense a tremor, it’ll ping the researchers’ server. “And when our server receives a bunch of those, we then say, ‘This is a likely earthquake,’ ” Lawrence says.