[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

View post   
File: 299 KB, 1316x1024, weeping-angel-2.jpg [View same] [iqdb] [saucenao] [google]
3921999 No.3921999 [Reply] [Original]

Dear /sci,

WTF is 'quantum locking'?
http://www.youtube.com/watch?v=Ws6AAhTw7RA

>> No.3922011

so the angels could be rotating if they were on a symmetrical magnet

>> No.3922007

inb4 "heated" temperature debates

>> No.3922024

>quantum trapping

there was already a thread on this today.

>> No.3922030

you're not getting the joke.

'quantum locking' is t-o-t-a-l b-u-l-l-s-h-i-t. It's a technobabble term from Doctor Who.

Doubt it? Find 'quantum lock' as a technical term, anywhere, anytime.

>> No.3922034
File: 27 KB, 500x289, WA[1].jpg [View same] [iqdb] [saucenao] [google]
3922034

WAZZZZAAAAAAAP

>> No.3922046
File: 31 KB, 350x366, pop lock.jpg [View same] [iqdb] [saucenao] [google]
3922046

>>3922030
What about pop locking?

>> No.3922054

why would it be called 'quantum' locking

i don't see anything quantum going on here

>> No.3922057

>>3922024
Just found it. But this never dawned on them:

This. Is not. The Meissner effect. The Meissner effect applies for superconducting METALS and describes bouncy spinny thinks levitating.

Meissner does not explain this--and, in particular, a type I superconductor could not pull off the upside-down trick. Meissner just gives to stability to small perturbations. Nothing like the video.

>> No.3922062

>>3921999
From Quantumlevitation.com

"The semiconductor (0.5micron) is coated with a sapphire crystal (500micron) layer, wrapped in plastic and chilled in liquid nitrogen. The end result is that the chilled wafer is essentially locked in space above the magnet."

>> No.3922079

It's like the Meissner effect, but for thin films. Because the London penetration depth cuts through the entire material, the field isn't removed from the superconductor, but rather runs through it, weaker than outside. This holds the superconductor in place.

>> No.3922085

>>3922054
You clearly don't understand superconductors then.

>> No.3922110

>>3922062
yeah, so...the sapphire is important somehow?

Sure it's not just plain old YCBO?

>> No.3922185

UFO's.

>> No.3922246

>>3922057
There was a thread on this yesterday where I pointed this out, but then no one bothered to reply. Its flux pinning that we're seeing I believe. Its certainly not Meissner at any rate.

>> No.3922599

>>3922024
>>3922246
link to archives then if you think there any merit in bringing up the fact this has been brought up before you pedantic fucks

>> No.3922609
File: 105 KB, 267x400, claire_bennett.jpg [View same] [iqdb] [saucenao] [google]
3922609

>>3922054
Qauntum tunneling is the quantum part.

The locking is just awesome.

see: >>3922046

>> No.3922629

>>3922246

winner

>> No.3922674

its called flux trapping
superconductors don't exclude magnetic fields perfectly
if you force it close enough the field gets a bit inside (on a scale of nanometers)
the

>> No.3922697

Why do people care if it's called quantum locking or not? I could understand from the point of view that the word quantum is ambiguous but there is no real semantic flaws.

>> No.3923110

hahaha, I saw this link on reddit in the conspiracy section.

>Oh boy here go again