After going to one too many movies where the other patrons feel itâ€™s necessary to tell their friends via cell phone about how the movie is going during the movie, I only wish I had the electronic skills necessary to put together my own Wave Bubble, a self-tuning, wide-bandwidth portable RF jammer. Itâ€™s the size of a pack of cigarettes, has an effective range of approximately 20 feet, and can jam cell, cordless phone, GPS, WiFi, Bluetooth, and more. Plus, itâ€™s an open source project, so if youâ€™ve got the skills, you can make your own. Jamtastic.
[Via: MAKE: Blog]