According to this MIT Technology Review article, researchers at the University of Washington have developed prototype devices that communicate using just ambient radio waves — no batteries needed. The devices achieve this trick by varying how much they reflect and absorb radio waves, and scavenge power from those same radio waves. Bandwidth is low — only about 1 kilobit per second — and range is currently less than 1 meter, though that can reportedly be extended to about 6 meters easily. By eliminating batteries, such devices can become significantly smaller and cheaper, and could appear in a wide variety of scenarios, from contactless payments to warehouse item tracking, plus the killer app of locating your glasses and keys. follow link
Re-Order the Fetch Shortcuts Menus
Do you use a shortcuts menu frequently in Fetch? Whether you use the Shortcuts menu bar menu or the "heart" shortcuts pop-up menu in the New Connection dialog, you can change the order of the shortcuts in the menu: Choose Shortcuts > Show Shortcuts to open the Fetch Shortcuts window. Click any column header in the window to change the sort order. The menus will show the shortcuts in the same order as the window.
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- ExtraBITS for 19 August 2013 (19 Aug 13)
Researchers Demo Devices Powered by TV Signals