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Topic: aluminum foil
From a yard in Kampala, Uganda, Moses explains how to build a solar oven using a tire, some glass, newspaper, silver foil, tape, a black pot, and a few hours. If you’re cooking outside or don’t have an oven, solar ...
It’s not magic. It’s science! Sulfur hexafluoride (SF6) is a colorless, odorless gas that is more dense than air at 6.12 g/L (at sea level). This density is why you can pour it into a glass container ...