“In principle this technique may be extended to visible frequencies; in fact metasurfaces are easier to realize than metamaterials in optics. However, the object size that can be efficiently cloaked with this method scales with the wavelength, so when applied to optical frequencies we may be able to efficiently stop the scattering of only micrometer-sized objects,” the research paper claims.
২৮ মার্চ, ২০১৩
A real Cloak of Invisibility.
"Titled 'Demonstration of an ultralow profile cloak for scattering suppression of a finite-length rod in free space,' their research, published in the New Journal of Physics, describes a cloak consisting of 66 µm-thick copper tape and 100 µm-thick flexible polycarbonate film which scatters and cancels out incoming waves."
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মন্তব্যগুলি পোস্ট করুন (Atom)
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১৭টি মন্তব্য:
It will never replace x-ray glasses.
Microwaves, Ann.
I'm there,
I already have one. It comes with the Vodka and Candy Cigarettes.
Every spy’s wet dream?
I guess The Washington Post is going after the right-side-of-history demographic.
High school girls' locker room, here we come!
Yes, but do they have a Cone of Silence?
The best Cloak of Invisibility for visible light won't work if your foe has infrared glasses.
And since the article is about cloaking microwaves, well it's use for tricking the human eye is pretty limited.
I believe they have tested this compound in laundry detergent, and it makes one sock of a pair invisible forever.
Now every woman can fit in a size 8 dress!!
Man, if it can hide responsibility and blame, politicians will pay billions to fund it.
Man, if it can hide responsibility and blame, politicians will pay billions to fund it.
Brilliant! No need for surreptitious activities. Theft, lying, bills passed and all kinds of mischief perpetrated in the open and in front of our lying eyes but without the knowledge of We The People.
Question: How do the congresscritters discern their own lying-partisans from the other lying, lying-partisans?
This has been around for about ten years. I met one of the guys who developed them. He signed a contract to be professor at our university, just before he got famous--so naturally he backed out and went somewhere more prestigous.
The range of wavelengths it makes you invisible to is very narrow, so even a visible light version would only make you invisible to one color at a time.
You can't fix that by stacking different ones, either--your red cloaking device is visible in blue light.
And since the article is about cloaking microwaves, well it's use for tricking the human eye is pretty limited.
Yes, but its use for cloaking against radar is pretty interesting.
Think about it. you don't have to build a stealth anything. Just cloak it in this stuff.
Joke Crafting Leno-style 101
target: NBC executives
subject: real invisible cloak
Hey, did you hear the latest news about NBC executives inventing a real-life cloaking device? Have you heard that? Yeah. They decided to call it "ratings."
[applause] bink bink bink bink
I've got one of those cloaks. It really works. Look I'll show you. I'm going to cloak the rest of this comment, and your won't see a thi
ng did you?
If it only cloaks small things politicians will have to wait a few more years before the technology can hide lies as big as the ones they tell. Anyway, low information voters and compliant media seems to be working well for now.
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