By Jennifer BergenPosted 08.01.2012 at 4:52 pm 0 Comments
Wireless accessories such as headsets and fitness monitors are notoriously inefficient because the Bluetooth standard they use keeps them constantly connected to other devices—even when there's no data to transmit. Bluetooth 4.0 (a.k.a. Bluetooth Smart), a new protocol debuting on devices this year, will change that.
Next time you take your temperature, maybe think twice about its accuracy. Despite what the mercury says, not all of your cells are really at 98.6 degrees, scientists reported in a new study. Using nanoscale thermometers, researchers have shown for the first time that living cells can exist at different temperatures. Busy sections are warmer, and less-active ones are cooler.
It’s the end of a long and fruitful era at the National Institute of Standards and Technology. Beginning March 1, America’s source for instrument and unit calibration will no longer offer calibration services for mercury thermometers, a service it has provided since its creation as the standard for all standards back in 1901.