During the workday the display is kept updated, powered by a small storage-capacitor charged by a thermo-electric cell. After a few hours of being heat or motion-less, the e-paper pixels revert to a static display until the clock is heated or picked up. The timekeeping portion requires almost no energy at all and can easily keep running for a week or two unassisted.-- FlyingToaster, May 22 2010 Safety third Cellular_20Iron [normzone, Jun 21 2010] good, don't understand it but it sounds real good.-- dentworth, May 22 2010 an uninformed pastry tastes just the same as the uppity kind gone to college and all, but... "cuppa" is a slang term for "cup of coffee". (post nudged in the general direction of comprehensibility)-- FlyingToaster, May 22 2010 I'd prefer a clockwork (pendulum aided) method of keeping my cuppa warm.-- po, May 22 2010 //alarm... nears minimum drinking temperature// I thought of that too, but my habit consists of a sip a couple times a minute, so I'm usually aware when it's near the critical point and has to be nuked/refilled.
//clockwork... pendulum... cuppa warm// Post Post Post Post-- FlyingToaster, May 22 2010 [FT], the term "cuppa" refers exclusively and specifically to a cup of tea, not coffee.-- MaxwellBuchanan, May 22 2010 "beverage of choice", besides, a cup-of-tea brings to mind china not pottery.-- FlyingToaster, Jun 21 2010 Safety third (link).-- normzone, Jun 21 2010 random, halfbakery