via Wikipedia
A Harry Potter-style invisibility cloak is one more step closer to reality thanks to the work of a research team at the FOM Institute for Atomic and Molecular Physics (AMOLF) in the Netherlands, which has successfully harnessed the magnetic field of light to develop meta-materials that can deflect light in every possible direction.
Metamaterials are a broad class of materials which have been specifically engineered to exhibit peculiar properties, particularly with regard to how light behaves when traveling in them: metamaterials with negative refractive indexes could even reflect light so to make entire objects invisible, and scientists have been making progress towards an invisibility cloak that, a few years back, belonged more to the pages of a fantasy novel than to those of a scientific paper. There’s certainly still a long road ahead, but continous advancements have consistently made this dream less and less laughable in the recent past.
As with all electromagnetic waves, light has two oscillating components, an electrical and a magnetic one, meaning that — theoretically — both electricity and magnetism can be used to control how it propagates within an object. However, atoms in standard materials interact only weakly with magnetic fields oscillating over 500THz. Because visible light ranges approximately from 400THz to 800THz, this means we simply can’t hope to exploit magnetism here to help us in our quest for invisibility.
The Latest on: Invisibility cloak
via Google News
The Latest on: Invisibility cloak
- I Study How Teachers Collaborate Online. Here's How They Can Do It Betteron December 6, 2019 at 10:20 am
As someone who studies how teachers learn online, I spend a lot of time lurking among teachers on social media sites. When teachers enter these spaces, they gain a certain "invisibility cloak," to ...
- Harmful Bacteria Masquerade as Red Blood Cells to Evade the Immune Systemon December 3, 2019 at 8:18 am
The clever trick effectively gives the pathogens “cloaks of invisibility,” says David Gonzalez, a biochemist and microbiologist at the University of California, San Diego. Now, Gonzalez and his team ...
- Amazon Black Friday UK deals 2019 – best Thursday offers on Chromebook and electric toothbrushon November 28, 2019 at 3:45 am
For the Harry Potter fanatics (like us) you can get your very own invisibility cloak for £30 and appear to disappear! There are countless offers to get your hands on from retailers on Black Friday ...
- Hands-on with 'invisibility cloak' material designed for military useon November 24, 2019 at 4:07 pm
We got our hands on early prototypes of Hyperstealth's Quantum Stealth "invisibility cloak" material designed for military use. We explore how it works, how it's made and what it could mean for the ...
- Westpac's cloak of invisibility has not just bankrolled paedophiles, but appears to support a massive tax dodge tooon November 23, 2019 at 7:20 pm
"Westpac established a cloak of invisibility for cross-border payments — tax authorities, financial regulators and agencies couldn't see anything. "It's this aspect of the case that makes it such a ...
- Tails of meows in Milanon November 23, 2019 at 3:14 pm
And the unexpected discovery of a pensioner’s tea dance. Crouched on the ground, as if imagining the shrouded comfort of an invisibility cloak. All the better to safeguard against the toy dog that was ...
- Ever wanted to disappear? Here's a real-life invisibility cloakon November 21, 2019 at 6:50 am
Seeing is believing, according to Canadian company Hyperstealth, who have created a light-bending material that makes invisibility a reality. Megan Revell reports. Seeing is believing, according to ...
- First glimpse - the invisibility cloak that workson November 21, 2019 at 6:43 am
Seeing is believing, according to Canadian company Hyperstealth, who have created a light-bending material that makes invisibility a reality. Seeing is believing, according to Canadian company ...
- The incredible INVISIBILITY SHIELD that can make objects 'disappear'on November 15, 2019 at 3:09 am
HyperStealth Biotechnology Corp said its new applications related to their Quantum Stealth technology - otherwise known as the Invisibility Cloak. It works by bending light waves around selected ...
- ‘Invisibility cloak’ straight out of Harry Potter is now a thingon November 15, 2019 at 2:50 am
Forget Harry Potter’s fictional invisibility cloak: A Canadian company that manufactures camouflage uniforms has created a mind-blowing, light-bending material that can make objects seemingly ...
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