Recent content by randy23

Do concentrated forms of light, such as a laser, have mass?

Thanks. But the fraction of g-force they commented about could also mean .000000001, right?

Kudos for the help everybody.

How much does it change on the average in accordance of Earth's atmosphere?

When light enters in Earth's atmosphere, how fast does it go? Or does it change at all?

Janus, thanks for the calculations. How did you go about calculating that number?

Well I'm not sure about the momentum. DC is pretty much based on pseudo-science but I just wanted to know using real sciences. Thank you for the insightful reply.

I'm a comic fan especially Superman and one of his feats dealt with him holding the moon that was supposedly increasing in momentum at fraction of a G-Force. My question is: is that really an impressive feat? A fraction of a G-Force? If it was half of a G-Force, how much force would he holding...

Sorry for not explaining very well. Is it possible to turn normal rock into glass using extreme heat? If so, at what temperature would it have to be?

Mezarashi, thanks for the reply. Just asking but what is your best guess which shuttle/meteorite would generate more heat?

Does a planet's atmosphere effect how hot objects get when entering its atmosphere? If we had two exact space shuttles entering two different planets, the first planet is Earth while the other is significantly smaller planet but its atmosphere is predominately made of carbon dioxide. Both are...

Thanks, it's nice to be here.

What temperature does stone have to reach for it to turn into refractive glass?

Does a planet's atmosphere effect the temperature spacecraft s generate when descending from orbit?