Recent content by Mikey16

I once read a material saying that moon has reduced the rotation speed of the Earth in the past 4 billion years. So indeed moon has shaped the rhythm of life on the earth. If we remove the moon now, I reckon the tides will be gone (as people said) and also the rotation speed of the Earth will...

When the first group of people land on Mars, I think they can just keep a tool (such as a atomic clock maybe?) displaying the time on the earth. Thought it may be a little bit uncomfortable and confusing...

Thanks so much for your recommendations! I searched some of them on amazon.com, and thought these books written by Padmanabhan are really practical to solve astrophysical problems!

OK this is my last reply for your response: You can read what mfb wrote here. And without a proper surface gravity, your water molecules will be gone no matter where you place your cup. And also read the second paragraph of my previous post.

Just because your habitat on the moon is totally isolated (sealed), the water molecules can not escape outside and you still have them in your habitat. We don't need to use our brain too much to imagine why a planet without enough gravity will have their water molecules escaped into space...

But you can only do this in a closed venue on the surface of moon. If you want to make the whole moon like the Earth ("terraform" it), the water molecules will escape to the space soon. What you said should be in a "space base", the environment in which is totally isolated to the outside. This...

I am a mechanical engineering student who got a master offer in space science recently. This master course is more like astrophysics. So if I want to systematically study astrophysics, where should I start and which books should I start reading first of all? Thanks!

I got a question for this topic: Should I say a planet with strong surface gravity must have large atmosphere pressure?

You can see that in space station with little gravity, water looks like a ball floating in the air. Without enough gravity, water can not be steady as needed to generate life. Moon doesn't have water on its surface just because it doesn't have enough gravity to "grasp" water. Same reason as...

I guess we can infer it based on the case of the earth. The total mass of water on the Earth is about 1/4400 of the mass of the earth. Therefore, I guess if we do terraform it, there must be some influences on the Earth (such as tides etc). But I don't think it will be much. But I don't think...

In terms of size and distance, Venus is better. However, the surface conditions on Venus is much more horrible than that on Mars, especially the atmosphere there. The atmospheric pressure on the surface of the Earth is approximately 1 bar while that on Venus is 93 bar. And the thickness of the...

Thank you!

Thank you for recommendations!

The most recent math knowledge I got in the uni is single variable differential equation (my intuition told me it is not enough to deal with quantum physics). But thanks anyway!

Hi! I'm an undergraduate student studying mechanical engineering with some numerical knowledge of astrophysics. If I want to start learning quantum physics by myself, which books should I start reading? Thanks!