Physics
S. McGrew's user avatar
S. McGrew's user avatar
S. McGrew's user avatar
S. McGrew
  • Member for 5 years, 10 months
  • Last seen more than 2 years ago
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About

Mostly retired optics/holography guy with interests in classical field theory, topology, and K-12 science education.

Currently building a sailboat and teaching blacksmithing & knife making.

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All Questions Answers
Score Newest
answer
68
Why don’t astronauts “push” spacecraft?
May 31, 2020
answer
64
If a photon truly goes through both slits (at the same time), then why can't we detect it at both slits (at the same time)?
Nov 16, 2019
answer
61
How do I experimentally measure the surface area of a rock?
Nov 9, 2019
answer
60
If electrons are identical and indistinguishable, how can we say current is the movement of electrons?
Jun 4, 2020
answer
52
Why does my tea periodically alternate its rotational speed after stirring? (Link to video below)
Feb 4, 2020
answer
52
Could there theoretically exist a material so light, that it can levitate in the air just due to the in height decreasing air pressure?
Mar 9, 2020
answer
46
How are overtones produced by plucking a string?
Sep 18, 2018
answer
42
Is force due to electric field instantaneous? If not then why?
Jun 1, 2018
answer
42
If a jet engine is bolted to the equator, does the Earth speed up?
Jan 17, 2021
answer
37
What happens when the drag force exceeds the weight of an object falling into earth?
May 7, 2019
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12
Is there any research on the development of attacks against artificial intelligence systems?

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