Recent content by Astro_Will

That's pretty interesting. I think there they are using the mass for the entire observable universe (though it's not clear) where I was just trying to use the mass of the stars. So it's HIGHLY probable that I simply got the wrong information about total stellar mass and used the full universal...

That's what I assumed too which is why I came here. Especially since I was only using the mass of stars!

I recently asked myself the question "If all the stars in the universe condensed together to form a black hole how big would that black hole be?" Using the information from http://en.wikipedia.org/wiki/Observable_universe I got the approximate mass to be 3x10^52kg. After that it was just a...

No questions. Thanks for this. I'll be sure to check the FAQ first from now on.

Does gravity have a finite speed at which it effects an object. For example (and this is strictly hypothetical) if a new star were to suddenly appear near the orbit of Saturn would Earth instantly notice the influence or would it take a few minutes? When I think of Newtonian gravity I would just...

Thank you both that was incredibly easy to understand and incredibly interesting to think about.

Earlier today I was on youtube when I saw this comment I went to respond to this saying that the light would blue shift out of the visible spectrum and you wouldn't be able to see anything. But then I thought about time dilation from relativity and wondered if the slowing down of time would be...

I was reading an article on Acoustic Levitation http://science.howstuffworks.com/acoustic-levitation2.htm and near the end it said This got me thinking about the character Banshee from X-Men Who's power, as described by the X-Men wikia is Now I understand that this is not the same thing as...

I understand that in the Double Slit Experiment that the particle will only go through one slit if it is measured or observed. But will the particle only go through the slit observed or is it 50/50? Also any other info on the experiment that might help me or even just interest me? Any articles I...

In chemistry I remember learning that electrons and protons had equal but opposite charges but also that electrons were much smaller than protons. So how is it that something so much smaller can have an equal charge?

I'm currently in my first semester at a community college with intention of transferring to a 4 year. At some point while still at my current school I will have to take General University Physics. My curriculum is saying that I should take both Uni. Physics and Vector Calculus in my third...

I understand it is physically impossible for anything to move at an infinite speed simply because infinity can never be reached but... My understanding of physics is that as something interacts with the Higgs Field it is given mass and therefore requires more energy to move. However I'm also...