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John Fletcher's user avatar
John Fletcher's user avatar
John Fletcher's user avatar
John Fletcher
  • Member for 7 years, 8 months
  • Last seen more than a month ago
  • Lawrence, KS, United States
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About

Retired MD, freelance science writer now. Fascinated by physics - cosmology in particular.

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question
10
What is the region of space that exists at the center of mass of merging black holes?
Jan 13, 2017
question
4
Composite black hole structures
Jan 7, 2017
answer
4
Is a spontaneous decrease in entropy *impossible* or just extremely unlikely?
Jul 19, 2020
answer
3
Can an object move faster than the speed of light in a medium?
Jul 19, 2020
question
2
Can any object pass into the event horizon of a black hole and then escape?
Jan 13, 2017
answer
2
What is the role of a combustion chamber in a rocket engine?
Jan 15, 2017
question
1
What process(es) created the initial anisotropies in the energy density distrbution of the universe?
Jan 19, 2017
answer
1
Do ideal gases at zero Kelvin have potential energy?
Jan 6, 2017
answer
1
For same temperature, mass and composition the pressure and volume are independent coordinates?
Jan 17, 2017
answer
1
Comparing a 100W and a 40W light bulb that only emits a specfic frequency
Jul 20, 2020
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Can I refer to a previous question I asked within the content of a new question?