Recent content by Wulgulmerang

Could somebody explain how one goes about deleting a post. I would like to delete #25, because it got through, half-finished.

Terra incognita or terra ignota (Latin "unknown land," with incognita stressed on its second syllable in Latin, but with variation in pronunciation in English) is a term used in cartography for regions that have not been mapped or documented. The expression is not found in ancient texts, and...

Suk-Sci. Thanks for your pictorial representation of -infinity to +infinity :-) I get what you're saying about f(x) = 1/x extending uniformly and infinitely. I am doing to the Calculus Life Saver - which is a free video series you can download online. I am so grateful to Adrian Banner...

Remember to type your responses in NotePad or TextPad first. Because this forum has just asked me to login again after a massive edit, which I cancelled, to supposedly return to editing, and my edits were lost. 30 minutes of finding links, weaving it together, LOST. Now I'm having to go...

Wilkinson Microwave Anisotropy Probe (WMAP) http://en.wikipedia.org/wiki/Wilkinson_Microwave_Anisotropy_Probe http://upload.wikimedia.org/wikipedia/commons/6/60/CMB_Timeline75.jpg" Shape of the Universe http://en.wikipedia.org/wiki/Shape_of_the_Universe Thanks Diazona :-)...

So you're saying that all stars and galaxies only exist on the surface of the balloon in curved space-time. Intuitively I'm thinking that there's a thickness to it? But carrying on with the thread, because the Universe is expanding at the speed of light, if we travel towards the centre of the...

But there must be something inside the balloon. The galaxies and stars in space-time are on the surface of the balloon. If we look out to the horizon of the balloon, it's nearly dead flat. What happens if move perpendicular to the horizon - if we move towards the centre of the balloon?

So when popular scientists use the balloon to explain the BIG BANG, they're showing that the curved space-time which contains the stars and galaxies, is the surface of the balloon? (I am imagining a spherical black balloon). And when you say that the observable curvature is nearly dead flat...

I kind of get the GIST of what you're saying. That there wasn't any space before the BIG BANG. It's just completely counter-intuitive. I cannot get my head round it. I keep visualising the BIG BANG as an expansion into empty space. I know that the empty space isn't there. But my mind keeps...

I think there was a BIG BANG in my cerebral cortex after reading that. I don't understand. When dynamite/TNT explodes and the explosion is slowed down on video, you can clearly see an almost perfectly spherical shock-wave. Debris is scattered in all directions away from the epicentre of...

Could anybody explain why the calculation is approximate to \pm 0.17 billion years? Are there satellites / NASA projects which seek to increase the accuracy of this measurement? Thank you for making clear that LIGHT YEARS is distance. Taking that onboard though, would it be reasonable...

How do you calculate an "intuitive" date and time from the BIG BANG to NOW? :-) For you Drum and Bass heads :-) Unfortunately Professor Hawking is a busy man who cannot be a hub to the world. Until we can query his brain electronically that is. Dear Professor Hawking, Is it possible...