Einstein handwritten letter with E=mc2 equation auctioned
The rare example of the equation in Einstein's handwriting sells for $1.2m, much more than expected.
from BBC News - World https://ift.tt/3wrfXTq
from BBC News - World https://ift.tt/3wrfXTq
Einstein handwritten letter with E=mc2 equation auctioned
![Einstein handwritten letter with E=mc2 equation auctioned]()
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May 21, 2021
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