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You can buy your own space age gold foil from many places as "rescue blanket". Quite cheap, around $3 for an adult sized sheet. I've used it to insulate south-
by tobiasu 13y ago
You can buy your own space age gold foil from many places as "rescue blanket". Quite cheap, around $3 for an adult sized sheet.
I've used it to insulate south-facing windows in summer. It's phenomenally effective.
- nether 13y agoThe gold color in this case comes from the compound kapton, versus the elemental gold deposited on space helmet visors. https://en.wikipedia.org/wiki/Space_blanket#Manufacturing https://en.wikipedia.org/wiki/Space_blanket#Manufacturing http://spinoff.nasa.gov/spinoff1997/hm2.html http://spinoff.nasa.gov/spinoff1997/hm2.html