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  (#1 (permalink)) Old
Blackwing Offline
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Harry Potter's Invisibility Cloak: Mirage Effect Created in Lab - October 5th 2011, 11:02 PM


It's not a special effect. It's an experiment in photothermal deflection ("the mirage effect" to physicists), and it was done with nanotechnology.
If you're not into nanotechnology, read on anyhow. This isn't that complicated, at least in concept.

You know how, if you're driving down a highway in Florida or Arizona on a sunny summer day, the road far ahead can look wet as it shimmers in the heat? That mirage is created by photothermal deflection — the heat is bending the light rays, creating the impression that there's a puddle up ahead.
Pretty weird, but it's a natural effect — and you can't exactly turn it on or off.
In the lab, Ali Aliev and his colleagues did nature one better. They took carbon nanotubes — cylindrical molecules with a remarkable ability to conduct heat — and warmed them electrically. In a container of water, they were able to bend the light around them, making the sheet of material "disappear." By turning the heat on and off, they could make the sheet reappear … and disappear … and reappear … and disappear again.
Take that, Harry. Your cloak was invisible all the time.
They say life imitates art, and in this case, science does too. Reporting in the journal Nanotechnology, Aliev and his co-authors say, "The remarkable performance of nanotube sheets suggests possible applications as photo-deflectors and for switchable invisibility cloaks."

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  (#2 (permalink)) Old
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Re: Harry Potter's Invisibility Cloak: Mirage Effect Created in Lab - October 13th 2011, 10:17 PM

I started watching the video and was like 'wait, this is about pizzas...' and then I realised I was watching the advert before it. xD

That's pretty awesome. I wonder if they'll find a use for it?

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Re: Harry Potter's Invisibility Cloak: Mirage Effect Created in Lab - October 13th 2011, 10:30 PM

Thats actually really cool. I was always wondering why a road looked as if it was a puddle up ahead.
thanks for sharing that!

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Re: Harry Potter's Invisibility Cloak: Mirage Effect Created in Lab - October 20th 2011, 06:40 PM

We did about mirages today in Physics hahaha :')

I think this is a really good breakthrough. They'll be able to develop the technology and use it for all sorts of things, like surveillance/wars. Although I won't say the war benefit is a good thing.
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Re: Harry Potter's Invisibility Cloak: Mirage Effect Created in Lab - October 20th 2011, 07:17 PM

Women's bathroom, here I come!

I mean...

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Re: Harry Potter's Invisibility Cloak: Mirage Effect Created in Lab - October 21st 2011, 08:19 AM

You can have the ladies restroom, Ben...

I want a freaking Bird-of-Prey

Can't shoot what you can't see, can you?

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