अक्सर पब्लिक प्लेस पर किसी कॉन्फरेंस हाल या ऑडिटोरियम में किसी को ठंड लगती है तो किसी को गर्मी। हरेक व्यक्ति की ताप -गर्मी-ठंडी सहने की क्षमता अलग अलग रहती है। कोई एक तापमान और आद्रता सबके अनुकूल नहीं रहती है।
Wristify: Thermal Comfort via a Wrist Band
The chief benefit of this device is that it offers a more personalized approach to temperature control.
Just Imagine a World In Which the Room Temp Is Fine With Everyone
In one experiment, Peltier joined a piece of copper wire, to a piece of bismuth wire, to a battery, and then completed the loop back to the copper wire. When he switched on the battery, one of the copper-bismuth junctions got hot, and the other one got cold.
If you put the cold end inside a box and then insulate that box, well, sonny-boy, you've got yourself a refrigerator. The disadvantage of the Peltier Effect refrigerator is that it's not very powerful, nor is it very efficient, but it is very reliable, because it has no moving parts.
A Thermocouple is a sensor used to measure temperature. Thermocouples consist of two wire legs made from different metals. The wires legs are welded together at one end, creating a junction. This junction is where the temperature is measured. When the junction experiences a change in temperature, a voltage is created. The voltage can then be interpreted using thermocouple reference tables (linked) to calculate the temperature.
Meetings Net (blog)-by -Nov 25, 2013
A team of those crazy kids at MIT have come up with just such a device, the Wristify, which earned them $10,000 and the top prize in MIT's ...