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by gsich
2445 days ago
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>The wavelength of microwave ovens is even longer, at 6.66cm. And yet that's the rotational resonant frequency of water. Weird, huh? By the way, you can confirm this with a single slice of cheese with the turnplate removed and then calculate the speed of light from the burn marks on that cheese being 3.33cm apart :) Not really. 2.4GHz was chosen because it allowed to built microwave ovens at that particular size and because nobody cares about the 2.4GHz range. You can build 900 MHz ovens too, there are some, mainly for industrial usage. |
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