Big phones; big deals
MIT students invent Wristify, a thermoelectric bracelet that can alter human body temperature
MIT students have developed Wristify, a thermoelectric bracelet that can alter human body temperature and cut down on air conditioning and heating costs.
Wristify has the ability to change an individual's temperature by several degrees and can work at a rate of 0.4 degrees a second.
The MIT students found a 0.1 degree a second change in temperature of one part of the body can make the entire body feel several degrees warmer or colder.
This would then help to save on energy bills as increasing the temperature of a large building by 1 degree can consumer around 100kWh a month.
Wristify is still a prototype but it uses a copper-alloy-based heat sink on the wrist and is able to automatically measure your body temperature and then make adjustments to maintain the level you set it at.
The bracelet has a lithium polymer battery inside and is able to work for eight hours.
Sam Shames, who co-invented the Wristify alongside Mike Gibson, David Cohen-Tanugi and Matt Smith, said: "Buildings right now use an incredible amount of energy just in space heating and cooling. In fact, all together this makes up 16.5 per cent of all US primary energy consumption. We wanted to reduce that number, while maintaining individual thermal comfort. We found the best way to do it was local heating and cooling of parts of the body."
The team recently came first in the MIT Making and Design Materials Engineering Competition and won $10,000, which they are going to reinvest into the Wristify project.