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Deleted member 473
(S)he would have to breathe in to fit in here! That should be breathe out. Your volume increases if you breathe in.
freeview.co.uk said:In order to watch HD, you’ll need a product with an HD receiver. Freeview HD give you 5x better picture quality.
Not when compared with other stars, but when compared with the earth, as in your example from The Sky At Night, it is pretty impressive.Irrelevant - as a star, it's not particularly impressive
I disagree. As they are three dimensional objects then it is natural to compare them by volume. If it were two fields then it would be natural to compare them by area. If it were two roads then it would be natural to compare them by length unless you were discussing traffic flow and capacity in which case you would also want to take into account the number of lanes and carriageways etc.However, the point is that, unless otherwise specified, "larger" will naturally be thought to mean linear size
The really interesting one is on what basis do you compare black holes which as singularities have zero dimensions?
General relativity. It's an entirely different matter if you fall into one. The infinite time observed from outside takes only a short time if you stray too close. That is called time dilation.How do you know? Have you been close enough to one to observe that?
That was my point. 5x better? 5x total pixels? 5x horizontal or vertical pixels. 5x better codec? 5x bitrate. Some vague combination of the lot? All very vague.Is that compared to alalogue 405 line?
Or is that 5x as in lager?
We all have at post 2293 above!How do you know? Have you been close enough to one to observe that?