Dan

Well are departmeant doesn't want the sites blocked and let us use the proxy browsers, but the whole college is on the network so they can't do anything about it. The main one we use is http://www.myspaceunblocker.net

Hey, I was wondering if anyone can help me. At college the I.T. guys have blocked myspace, youtube and other site like them. To get on them we use proxy browsers but they don't work that well because we can't watch videos on youtube and can't listen to songs on myspace, does anyone know why this is and how can we get around it? I don't know much about computers but assume its something to do with flash or plug-ins.

err... no. There is a point in space where everything goes black, the event horizon. You go from outside the event horizon, through it, and into the blackness. (obviously i'm being hyperthetical, if you were to go that close to an event horizon you would be ripped appart)

isn`t that a little bit contradictory?

No, because a black hole has so much gravity at the event horizon that not even light can escape it. Thats why its black, because any light past the event horizon is pulled in.

Yeah, i'm sure that's provable, i assume the event horizon doesn't count for you?

What? The event horizon isn't anything physical, its just the point where light can't escape the gravity of the singularity, you can pass through it, just not out of it.

Hello, I was just doing a bit of research on general relativity when I came across this about backwards travelling light.

http://www.rochester.edu/news/show.php?id=2544

Is this legitimate because all other sites I have looked on all refer to this one page. Is it possible? And I also wasn’t aware they made light go slower and faster, is that true as well? What are the implications of it?

Here are some of the other sites I looked at:

http://www.physorg.com/news66582110.html

http://www.livescience.com/technology/060518_light_backward.html

If you don't believe Klaynos then Albert Einstein will back him up with his theory of relitivity.

If you wanted to destroy something send it to a black hole, it will get ripped appart on the way in and then compressed into a singularity when it hits the centre.

The film "Event Horizon" is about folding space, its a good film but it would put anybody off ever trying to travel that way.

I saw something on TV ages ago about a two headed tortoise(turtle in america). I think this is the same one...

http://news.bbc.co.uk/1/hi/uk/4006351.stm

The only real argument against stem cell research is that they are harvested from human embryos, every thing else about stem cell research is positive.

If you like South Park, episode 513 is about stem cell research so it may benifit you to watch that.

I’m sure most people have heard about the rise in earth’s temperature because of global warming, but how will this affect England and the UK?

I’m wondering because global warming is melting the polar glaciers and that is causing the sea to become less salty which is causing the Gulf Stream to stop and will cause a major drop in the UK’s temperature.

So will England be hot because of global warming or cold because of the change in the Gulf Stream?

My main interest is the life cycle of stars but i'm really interested in space in general. every evening i research different aspects of space, usually about something i only heard about from the previous nights researching.

i knew it was time to think about studying astronomy when i was sitting in my music class researching black holes when everyone else was doing recording coursework.

i've all ready done two years of further education so if i study astronomy it will be what i want to go in to as a job, i just don't know what kind of jobs i can get from it.

Hey everyone, I need a bit of advice and I was wondering if anyone could give me some.

I really want to study astronomy but I’m not sure how to go about it. I live in England and I don’t know how education works in other countries but all advice would be much appreciated.

I was wondering if anybody knows if I can study astronomy at and A level or BTEC, or would I have to do and A level in physics and then study astronomy and university?

Also, what kind of job opportunities do the qualifications offer?

And encase your wondering I’m only 17 and about to finish my current college course and still don’t know what I’m going to do next academic year.

the wires inside look damaged, two of them are exposed at certain points.

maybe the exposed wires touched something metal or the two exposed ones touched, it would blow the fuse or the breaker but it would spark first which could be what the black is.

I'm an Electrician myself and it really sounds like you should change your junction box. It may be a loose connection, i have seen junction boxes melt from the heat caused by a loose connection so the black could be burns from the heat, especially if the wires are damaged. Cut away the damaged wires and strip back some fresh wire to use before you change the box.

Ok I have a question about a spinning circle. How can a circle spin round? I know it sound weird but I while on a merry-go-round it hit me that the outside of a circle has a bigger circumference than further in the circle, so wouldn’t the edge of the merry-go-round have to be moving faster than the centre of the merry-go-round because it has a bigger distance to travel than the centre does.

To try and put it more simple, if the circumference of a circle is 10cm then further in the circle there would be a circumference of 5cm but for the circle to do a complete rotation in say 60 seconds, the outside of the circle would be going at a speed of 10cm per minute but inside the circle it would only be going 5cm per minute.

So basically my question is “does a circle spin at different speeds depending on the distance from the centre of the circle?”

I hope that makes sense just tell me if it doesn’t.

wow interesting, how dangerous are CMEs to Earth?

So if the hydrogen is more concentrated in certain areas it will need more dust and hydrogen to collapse and form a star, right? Or have I missed the point again?

Yer, i want to know why.

A thought occurred to me, a star is formed by a large mass of hydrogen collapsing under its own gravity right? So how then do we get different size stars, because wouldn’t the hydrogen cloud collapse when it reached a certain mass making all stars the same size because they all started with the same amount of hydrogen?

Somewhere I’m wrong because there are lots of different size stars so can someone tell me what I’ve got wrong?

Many thanks

I would love the formula Martin thanks.

Hey everyone, I have a question about the start of a black hole. I read this in an article on the internet but it was a bit vague and I didn’t quite understand it and I was wondering if someone could help me understand what it said.

Basically it said that a black hole could be caused by an electron being pulled into a proton by its gravity which causes the atom to become unstable and it collapses in on itself until it becomes a singularity.

It sounded a bit weird to me but I’m really interested in black holes and I want to learn as much as possible about them so can anyone expand on it for me?

Many thanks