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9 Questions

Views Newest Activity Votes

4

36

votes

1

answer

9k

views

Can I eat myself into a black hole?

black-holes density estimation

Jul 4 '18 at 17:22 Qmechanic♦ 120k

3

12

votes

2

answers

2k

views

Conservative central force and stable orbits

classical-mechanics newtonian-gravity orbital-motion stability

Jul 3 '17 at 23:54 Diracology 14.8k

7

votes

1

answer

917

views

Estimating the current speed of sound

acoustics atmospheric-science speed

Aug 1 '17 at 4:04 pentane 2,652

3

votes

2

answers

67

views

Would setting the ideal gas constant to $1$ yield an attractive natural temperature scale? [closed]

temperature units ideal-gas dimensional-analysis absolute-units

Jun 9 at 20:37 Qmechanic♦ 120k

1

vote

0

answers

23

views

Density of solids and liquids composed of different isotopes

density isotopes

Sep 2 at 14:54 Ben Crowell 74.5k

1

1

vote

4

answers

78

views

Absorption spectra

absorption photon-emission

Aug 23 '18 at 21:25 Bill Alsept 2,273

1

vote

1

answer

428

views

Electric force much stronger than gravitational force? [duplicate]

electromagnetism forces gravity physical-constants interactions

Jul 31 '18 at 14:58 Qmechanic♦ 120k

0

votes

0

answers

33

views

Isotopes: boundary between very short life time and not existing at all? [duplicate]

isotopes half-life

Sep 27 at 12:22 badjohn 1,092

0

votes

1

answer

35

views

Sound from a rocket

thermodynamics fluid-dynamics acoustics rocket-science efficient-energy-use

Jun 29 at 10:23 Victor Pira 2,519

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