All Questions
7
questions
7
votes
1
answer
582
views
What volume would the mass of Earth occupy in the core of the sun?
I was just wondering if anyone had computed this. I read that the pressure in the Sun's core is 3.84 trillion psi. Obviously the mass of an Earth-sized object in the core would be millions of times ...
- 175
3
votes
2
answers
833
views
Can Earth's mass increase due to sunlight? With how much?
Asking this just out of curiosity:
I am no physics buff but considering the particle nature of light, each photon has energy (however small it may be). Given this, can the earth's mass increase given ...
- 159
0
votes
1
answer
79
views
Does the length of days change substantially during the year, from more than 24 hours to less?
I just read an article in the 'Science' journal online about Monarch butterfly migration. (Mysterious monarch migrations may be triggered by the angle of the Sun , by Elizabeth Pennisi , Dec. 18, ...
- 4,509
3
votes
2
answers
657
views
How much change in Earth's orbital distance to change average temperature by 1°C?
How much closer/farther would the Earth need to be to/from the Sun to effect a $1 \sideset{^{\circ}}{}{\mathrm{C}}$ increase/decrease in average temperature?
- 259
4
votes
1
answer
515
views
How far has Earth moved from its birth orbit?
It says earth is almost as old as 1/3 of the universe's age which would mean 4.5 billion years .
So how far has earth moved towards or away from the sun in these 4.5 billion years?
Now perfect ...
- 838
28
votes
2
answers
10k
views
How long until we fall into the Sun?
As a planet moves through the solar system, a bow shock is formed as the solar wind is decelerated by the magnetic field of the planet. Presumably the creation of this shock wave would cause drag on ...
- 16.6k
6
votes
4
answers
3k
views
Can human push Earth away from the Sun?
It's said the earth is approaching the sun. Can we push it away little by little?
Although we can emit rocket towards the sun, but it's too expensive to make a rocket:
So I think maybe we can ...
- 255