2006-07-26 04:25:14 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
They use low density Carbon menerals in the material (perferably gortex) - which reacts to the air thus causing the release of energy (heat), Combine the release of energy with gortex double shell which has the ability to store heat due to the thin layer of air (the best insulator known to man- see cost-effective windows) trapped between the layers of gortex. This works well and is used with North Face Jackets (high altitude Mountain Gear) which is the preferred distributor of mountain climbers world-wide.
2006-07-26 05:52:20 · answer #1 · answered by Anonymous · 0⤊ 1⤋
There are several different things this could mean.
How do you heat clothing (like in a dryer or microwave).
How does externally powered self-heating wearable clothing work?
Im not sure which question you are asking.
2006-07-26 11:34:36 · answer #2 · answered by Curly 6 · 0⤊ 1⤋
this cloth is made of isolated cloth and get out of heat and enterance of cold is imposible.
2006-07-29 06:40:25 · answer #3 · answered by eshaghi_2006 3 · 0⤊ 1⤋