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With which speed all wizards apparate? Is it controlled at will of wizards or it is constant for all?

What's its speed (or, upper speed limit)? Is it sub-light speed or light speed? Or, even faster than light (I don't think Einstein stands in front of magic)?

4

I'm quite sure Apparition is much slower than light speed. There's a passage in Price that seems to indicate that at least a few tenth of a second but possibly seconds pass during an Apparition. This is the wizard's subjective time, but I think it's roughly the same as the externally observed time.

Quoting Half-Blood Prince chapter 4, when Harry Apparates side-along with Dumbledore.

Harry felt Dumbledore's arm twist away from him and redoubled his grip: the next thing he knew, everything went black; he was being pressed very hard from all directions; he could not breathe, there were iron bands tightening around his chest; his eyeballs were being forced back into his head; his eardrums were being pushed deeper into his skull, and then–

He gulped great lungfuls of cold night air and opened his streaming eyes. He felt as though he had just been forced through a very tight rubber tube. […]

(Portkeys appear to work the same, because the books talk about similar sensations when wizards travel with them.)

Update: I found one more relevant quote, in Order of the Phoenix chapter 6.

Harry knew that Apparating was very difficult; it meant disappearing from one place and re-appearing almost instantly in another.

I take this as proof that Apparition is fast, but not as fast as the speed of light.

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    It is possible that what Harry experienced was previous to the Apparition itself - as in "charging" the spell before actually happening. Like being catapulted - as the catapult prepares itself, you will feel your body mass strange, but you haven't been catapulted yet (terrible analogy I know). – Voldemort Mar 9 '13 at 23:08
  • I feel like a lot of the time is caused by the "charging" that @Voldemort mentions. The speed of the actual movement itself could still be near instantaneous. Think: would it take longer to apparate across the globe that a few miles? – Broots Waymb Jan 14 '16 at 21:04
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Rowling seems to indicate that when someone transports himself through apparition, he disappears from one place and appears at another instantly no matter what the distance. Afterall, where have fantasy and physics got in each other's way?

  • Any source to back this up? – Baby Yoda Feb 7 '13 at 14:30
  • The only source to back this up is that Rowling has never indicated a passing of time in any apparition case which forces one to believe that apparitions are instant. – Elzee Feb 7 '13 at 14:39

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