Does this involve the polarities of these two substances? Is it because like dissolves like? What is the reason? It's resin that acetone dissolves when nail polish remover is added to dried nail polish right, not the nitrocelluose? Does the fact that acetone is an aprotic solvent have anything to do with this? Thanks.
Smoke detectors have improved a great deal in six years. They're very inexpensive and have extra features such as hush mode and emergency lights. Get yourself a new detector. There's no point in putting yourself and your family at risk to keep an outdated device.
than u might need a new unit or the wires could be bad
In your thermos bottle analogy the walls of the bottle are the sun's surface and the earth's atmosphere, separated by a vacuum. The sun's surface is *hot* and emits radiant heat which travels just fine through a vacuum. The earth's atmosphere absorbs and retains heat quite well. So, the earth is warmed by the sun with no problem. To really make the thermos bottle analogy, the vacuum in your bottle would have to contain a potent infrared heat source directed on the inner wall through the vacuum. In that case the water contained inside would definitely heat up!
