Recent content by syntotic

Is this the only physics forum in The Web? HOPE NOT...

Mylar is an insulator, but it is coated with metal. Intuitively it should be possible to wrap a laptop in mylar and insulate the laptop from radio signals... but is there any chance it might affect magnetically the computer and/or its hard drive? I mean a very loose airy wrapping, like in...

Ecco.

mmm... Bismuth would cool faster than water then, because it absorbs less heat to change temperature one degree?

Which material will cool faster, one with a higher specific heat/capacity index or one with a lower value?

I just got my hands on a solar battery charger with a set of usage specifications that makes me believe it will only be useful some four days a month and will take more or less such time to charge a single set of batteries, despite promises on the contrary in the instructions. Since the case is...