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niels nielsen's user avatar
niels nielsen's user avatar
niels nielsen
  • Member for 6 years, 8 months
  • Last seen this week
  • corvallis, oregon, united states
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About

physics enthusiast and electric bassist, recovering ex-engineer (there's a 12-step program for that but it's notoriously ineffective). Tries to answer questions on the stack exchange in order to help people and improve his game. Website full of weirdly cool stuff he's done at www.nielsenkillowatt.com

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56
What prevents a small plane like a Cessna or Piper from flying as high as a jet?
Jun 29, 2021
38
What could explain the fact that during 1976-80, I used to hear commercial jets make sonic booms while flying overhead?
Jul 7, 2020
36
Why do airplane indicators start at 12 (o'clock), unlike cars that start at 7?
Mar 7, 2021
35
Why are the colors of the MiG-15's attitude indicator inverted?
Jan 26, 2020
30
Why does Boeing use a trim wheel in the 737 and not their other products?
Apr 1, 2020
30
Do wings actually flex upon landing (especially hard landings)?
Feb 17, 2022
29
Low visibility spins and spirals: difficult-to-understand explanation of false perception
Mar 17, 2021
28
Why do older pistons crank for a while before starting?
Aug 20, 2022
28
What could explain that small planes near an airport are perceived as harassing homeowners?
Jun 28
27
Why is there a maximum landing weight limit?
Jan 7, 2020
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175
Why do fans spin backwards slightly after they (should) stop?
167
Why do spaceships heat up when entering earth but not when exiting?
143
Why does a sticker slowly peel off, but if it is pulled quickly it tears?
133
Why bother buying efficient lights if you are already heating your house?
109
Why doesn't the road lose its thickness to the tyre?