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Physics
kruemi's user avatar
kruemi's user avatar
kruemi's user avatar
kruemi
  • Member for 4 years, 2 months
  • Last seen more than a month ago
  • Switzerland
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About

Electronics professional by day, computer geek, astrophotographer and many other things by night. >20 years of experience in the trade and made enough mistakes in that time to be able to help others not make the same mistakes again.

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Top posts
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25
Why is it easier to raise AC current to high voltage than DC?
Aug 25, 2022
answer
11
Why does an inkjet printer use CMYK ink instead of RGB ink?
Mar 8, 2022
answer
6
Would a bicycle pump work underwater, with its air-input being above water?
Nov 7, 2022
answer
5
Is potential difference always required for current?
Feb 28, 2022
answer
4
Synthetic aperture for visible light camera
Sep 13, 2022
question
2
How does transition from supersonic to subsonic flow occur?
Sep 16, 2022
question
2
Is supersonic movement possible in incompressible media? [duplicate]
Nov 9, 2022
question
1
Where do the Neutrons for fusing Hydrogen to Helium in the Sun come from?
Feb 3, 2022
question
1
Can gravitational waves be refracted or reflected?
May 19, 2022
question
1
What parameters descibe a gravitational wave?
Nov 30, 2022
Top network posts
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47
Why do you even need a heatshield - why not just cool the re-entry surfaces from inside?
45
JWST - Why unfurl before reaching L2?
33
Were any of the Apollo astronauts smokers and did that cause any problems?
30
Why do the walls of a solid rocket booster not glow red hot?
28
Why didn't JWST include any sensors capable of blue and green visible wavelengths