Tools

Homebrew parametric speaker

Homebrew parametric speaker

If you’re familiar with the audio spotlight, then you now how very awesome narrow beam ultrasonic speaker devices can be. They can project a sound efficiently over long distances without spreading like common speakers. One can essentially walk into the ultrasonic line-of-fire and begin to hear sound abruptly – certainly an interesting effect. Though not […]

Gripples – Rope locks…

Gripples – Rope locks…

Doug writes in – I use a lot of aircraft cable for installing/building artworks, often with pressed ferrules and turnbuckles to make adjustable lengths. Kind of a pain, but it works. At the ArtBots show this weekend I was introduced to Gripples — they’re kind of like zip ties, but for aircraft cable. Some of […]

RFID reader / tag kit

RFID reader / tag kit

New RFID kit, “Tikitag”… Looks like the value here is the example applications and use of their web site? The tikitag starter package, together with the tikitag service on http://www.tikitag.com can be used to create your Internet of Things. With tikitag, objects can be made smart and applications can become accessible via a simple touch. […]