- I too have enjoyed a balloon in a swerving car. I wonder if Einstein ever got to experience one.
In Newtonian mechanics a negative mass rock would fall down:
https://mathstodon.xyz/@johncarlosbaez/115145567478831394
John Carlos Baez
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2025-09-04 13:37:14 UTC
in reply to nevent1q…0rvt
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2025-09-04 13:37:14 UTCEvent JSON
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