Levitation: Science or Magic?
Levitating table-tennis balls... and water. Wait – water?
Shift Productions
Duration: 2:29
Views: 542
Shift Productions write:
We introduce the concept of levitation, concentrating on the need to balance forces due to gravity with an external force. We then provide a few practical demonstrations…
OK, what, woah, did that just…?!
It’s odd, this film. I like it lots, and it’s terrific to have a contribution from a genuine research lab. We’ve plans for lots more of this sort of thing in the coming year, and this is a great start. It’s well-planned, clear, and hits a good friendly tone. Those of you who’ve taken part will know that all of this is deceptively difficult.
But then there’s the little bit at the end that’s absolutely stunningly gob-smacking, and I suddenly find myself wondering why they’ve been faffing around with a poxy hairdryer for two minutes when they could have been showing me the totally sci-fi sonolevitation rig that… oh, it’s finished.
Gaaah! I want to see more of that amazing bit of kit! It’s astonishing! Apart from anything else, I want to know why they’ve built it — not to mention how long it took, how long it works for, where the technology came from, and all the rest. It’s a fabulous bit of physics. Forget the hairdryer, show me the shiny thing!
Just me?
— Jonathan.
Something is not right. Standing waves don't have areas of high and low pressure; they have areas of big pressure variation and areas of low pressure variation - nodes and antinodes. This doesn't explin how you get an overall upward force.
Francis, 16 Jun 2010
Imagination Leads the way !!
Bravo
Farshad, 19 May 2010
Really freaky these two "scientists". But I've the impression that the crazy guy on the right has a distinct Swabian accent!
Andrew, 23 Feb 2009
Super Klasse Toll!
Stuart, 19 Feb 2009
that thing is great! What is it at the end? The whole thing should have been focussed on that... absolutely great!
Johnny, 18 Feb 2009
Water is the best bit!
Jon, 16 Feb 2009
smoke and mirrors, boys and girls. smoke and mirrors.
Bassel, 11 Feb 2009
Excellent demo at the end, very impressive! I too, would love more info on that final demo (equipment used, frequency etc.)
Declan, 05 Feb 2009
Is his accent real?
but that was a good video
Adam, 05 Feb 2009
No, not just you Jonathan, but I like the build-up. The early explanation is really clear. I'd like a little more delight in the reveal. That's a wonderful bit of kit!
Elin, 05 Feb 2009