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Because school water quality is “suitable,” students raised two stalactites on the sink. They water them daily — one month later the rocks look like this.
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Because school water quality is “suitable,” students raised two stalactites on the sink. They water them daily — one month later the rocks look like this.
This is not a cute experiment. It is extremely hard, barely treated water depositing heavy mineral scale in weeks.
When
时政
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twitter.com)
00:00:08
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ELON: IF EARTH SUCKS, SPACEX IS EXPANDING THE MAP TO "MOON BASE ALPHA"
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ELON: IF EARTH SUCKS, SPACEX IS EXPANDING THE MAP TO "MOON BASE ALPHA"
“You can think of space as being concentric shells of the surface of the Earth. It’s the surface of the Earth, but it’s a series of concentric shells.
Imagine if there were just a few thousand airstreams on
btc
(
twitter.com)
00:00:45