Next Halley’s Comet visit will be 2061. If I’m alive I’ll be 87
Who else watched it in 1986?
I’m trying to make a list of historic events I’m very sure will happen in the future within my lifetime if I’m still alive, and this is literally the only thing I can think of.
I once tried but couldn’t find an objective lens of meaningfully long focal length. How did you find one?
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I guess I got lucky....didn't 'find it'.. As I said, just used the objective (eye piece) from the microscope...and it seemed to work well, with the convex lens combination.
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Ah ok misread. That would work
End of conversation
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