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BitsandBobs 27 Feb 2021
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Mobile Phone Receiver 100 years ago. [4K,50fps]

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⁣This is a crystal radio receiver, the fire hydrant provides the ground and the umbrella is the antenna. Crystal radios were popular in the 20s and 30s since they don't require batteries. Powered by the radio signal.


Credit to: BRITISH PATHE

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2 months ago

"⁣Powered by the radio signal" sounds ominous! Digital cell phones today have a SAR rating of .6 watts per kilo of flesh, in the 90's the analogue phones were up to 10 watts per kilo of flesh. In the 20's and 30's signal from such devices could burn shadows into the wallpaper!

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Dr. Sucharit Bhakdi Warned About Blood Clots Months Ago
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