User Schwern

152 votes

Accepted

Why does public mains power use 50-60 Hz and 100-240 V?

answered Oct 7, 2015 at 18:24

51 votes

Would an atomic bomb detonate a uranium stockpile?

answered Sep 8, 2020 at 17:08

27 votes

How can the solutions to equations of motion be unique if it seems the same state can be arrived at through different histories?

answered Sep 3, 2018 at 19:15

25 votes

If the Earth is a good conductor of electricity, why don't people get electrocuted every time they touch the Earth?

answered Mar 29, 2015 at 23:37

21 votes

How far out from the Sun is visible light still sufficient to read a book?

answered Sep 18, 2015 at 19:26

17 votes

Accepted

Examples of events that are unpredictable as a matter of principle?

answered Jan 23, 2017 at 3:49

16 votes

Can a Skydiver Land On a Large Slide and Survive?

answered Aug 13, 2015 at 20:17

14 votes

Can a gym be built to supply electricity to homes?

answered Jan 17, 2017 at 21:22

12 votes

Pouring oil on choppy water to calm it , does it work and if so how?

answered Aug 25, 2015 at 8:15

11 votes

Does the second law of thermodynamics imply that renewable energy also leads to global warming/climate change?

answered Oct 19, 2020 at 8:09

11 votes

If space is a vacuum, how do stars form?

answered Nov 11, 2021 at 2:48

8 votes

Does bottle water rise a little bit on full moon days?

answered Mar 28, 2021 at 21:36

6 votes

Does artificial gravity based on centrifugal force stop working if you jump off the ground?

answered Dec 13, 2018 at 21:49

5 votes

What Happens In Billions Of Years Time To The Universe?

answered Jun 30, 2014 at 18:37

4 votes

Why can electric cars recoup energy from braking, but a spaceship cannot?

answered Mar 8, 2017 at 21:57

4 votes

Calculating the Earth-Sun distance

answered Oct 2, 2018 at 0:46

3 votes

Do standard model particles actually exist or merely usefully describe behaviors of a medium?

answered Aug 22, 2018 at 18:29

3 votes

Could this planetary superalignment happen?

answered Dec 25, 2014 at 5:43

3 votes

Dodging paintballs

answered May 9, 2015 at 23:39

2 votes

What is an instant of time?

answered Nov 1, 2016 at 0:46

2 votes

According to general relativity planets and Sun bend the spacetime (explaining gravity), but does this hold true for smaller objects?

answered Apr 11, 2021 at 18:25

1 vote

Accepted

Restart the Universe expansion?

answered Mar 28, 2020 at 3:44

1 vote

Could we use nuclear bombs to generate electricity?

answered Apr 20, 2016 at 18:34

1 vote

creating black holes

answered Jan 18, 2015 at 1:32

0 votes

Accepted

Is it possible to travel near light speed and not notice relativity?

answered Apr 1, 2016 at 0:58

0 votes

What is the tolerance for astrophysic measurements compared to distance?

answered Mar 9, 2021 at 3:43

Stack Exchange Network

26 Answers

Why does public mains power use 50-60 Hz and 100-240 V?

Would an atomic bomb detonate a uranium stockpile?

How can the solutions to equations of motion be unique if it seems the same state can be arrived at through different histories?

If the Earth is a good conductor of electricity, why don't people get electrocuted every time they touch the Earth?

How far out from the Sun is visible light still sufficient to read a book?

Examples of events that are unpredictable as a matter of principle?

Can a Skydiver Land On a Large Slide and Survive?

Can a gym be built to supply electricity to homes?

Pouring oil on choppy water to calm it , does it work and if so how?

Does the second law of thermodynamics imply that renewable energy also leads to global warming/climate change?

If space is a vacuum, how do stars form?

Does bottle water rise a little bit on full moon days?

Does artificial gravity based on centrifugal force stop working if you jump off the ground?

What Happens In Billions Of Years Time To The Universe?

Why can electric cars recoup energy from braking, but a spaceship cannot?

Calculating the Earth-Sun distance

Do standard model particles actually exist or merely usefully describe behaviors of a medium?

Could this planetary superalignment happen?

Dodging paintballs

What is an instant of time?

According to general relativity planets and Sun bend the spacetime (explaining gravity), but does this hold true for smaller objects?

Restart the Universe expansion?

Could we use nuclear bombs to generate electricity?

creating black holes

Is it possible to travel near light speed and not notice relativity?

What is the tolerance for astrophysic measurements compared to distance?