"Cloaking device in 18 months"?! - Fantasy Baseball Cafe 2014

## "Cloaking device in 18 months"?!

Moderator: Baseball Moderators

### "Cloaking device in 18 months"?!

This is crazy.

Plan for cloaking device unveiled
Researchers in the US and Britain have unveiled their blueprints for building a cloaking device.

So far, cloaking has been confined to science fiction; in Star Trek it is used to render spacecraft invisible.

Professor Sir John Pendry says a simple demonstration model that could work for radar might be possible within 18 months' time.

Two separate teams, including Professor Pendry's, have outlined ways to cloak objects in the journal Science.

These research papers present the maths required to verify that the concept could work. But developing an invisibility cloak is likely to pose significant challenges.

Both groups propose methods using the unusual properties of so-called "metamaterials" to build a cloak.

These metamaterials can be designed to induce a desired change in the direction of electromagnetic waves, such as light. This is done by tinkering with the nano-scale structure of the metamaterial, not by altering its chemistry.

Light flow

John Pendry's team suggest that by enveloping an object in a metamaterial cloak, light waves can be made to flow around the object in the same way that water would do so.

"Water behaves a little differently to light. If you put a pencil in water that's moving, the water naturally flows around the pencil. When it gets to the other side, the water closes up," Professor Pendry told the BBC.

"A little way downstream, you'd never know that you'd put a pencil in the water - it's flowing smoothly again.

"Light doesn't do that of course, it hits the pencil and scatters. So you want to put a coating around the pencil that allows light to flow around it like water, in a nice, curved way."

The work provides a mathematical "recipe" for bending light waves in such a way as to achieve a desired cloaking effect.

John Pendry, along with colleagues David Smith and David Schurig at Duke University in North Carolina, US, have been testing suitable metamaterials for the device they plan to build.

This, Sir John explained, would consist of a sphere or cylinder wrapped in a sheath of metamaterial which could cloak it from radio waves.

"It's not tremendously fancy, but that for us would be quite an achievement," he told the BBC News website.

Professor Ulf Leonhardt, author of another cloaking paper in Science, described the effect for light as a "mirage".

"What you're trying to do is guide light around an object, but the art is to bend it such that it leaves the object in precisely the same way that it initially hits it. You have the illusion that there is nothing there," he told the BBC's Science in Action programme.

The work could have uses in military stealth technology - but engineers have not yet created the materials that could be used to cloak an aircraft or a tank, John Pendry explains. Professor Pendry's research has been supported by the US Defense Advanced Research Projects Agency (Darpa).

Several other scientific teams have proposed ideas for cloaking devices. One theoretical paper proposed using a material known as a superlens to cancel out light being scattered from an object.
1 3 4 6 7 8 8 9 10 15 16 23 32 37 42 44 49 51

8.14.07: "I guess heaven needed a shortstop."
WharfRat
General Manager

Posts: 3056
Joined: 27 Jul 2003
Home Cafe: Baseball
Location: Walking my fish

Man, all the fun I'd have with that stuff.
7/26 - Cafe goes down:

General Error
SQL ERROR [ mysql4 ]
Table './cafe_forums/baseball_sessions' is marked as crashed and should be repaired [145]
Hall of Fame Hero

Posts: 10983
Joined: 20 Jan 2005
Home Cafe: Baseball
Location: Bleachers at Wrigley Field

I read something about the research a while back on this. Pretty amazing stuff. Could come in very handy I would imagine.
Omaha Red Sox
Hall of Fame Hero

Posts: 11420
(Past Year: 6)
Joined: 29 Jun 2005
Home Cafe: Football
Location: Probably over there

As cool as this sounds, I can really only think of negative things that would come from this. VERY negative things.
teddy ballgame
Hall of Fame Hero

Posts: 11485
Joined: 7 Feb 2006
Home Cafe: Baseball
Location: Beantown

teddy ballgame wrote:As cool as this sounds, I can really only think of negative things that would come from this. VERY negative things.
I was standing right behind you when you typed this. This works great!!
7/26 - Cafe goes down:

General Error
SQL ERROR [ mysql4 ]
Table './cafe_forums/baseball_sessions' is marked as crashed and should be repaired [145]
Hall of Fame Hero

Posts: 10983
Joined: 20 Jan 2005
Home Cafe: Baseball
Location: Bleachers at Wrigley Field

Sounds like someone has been digging around in transcripts of The Philadelphia Experiment a bit too much.
Keep wreves in General Talk in 2011!
knapplc
Hall of Fame Hero

Posts: 7871
(Past Year: 1)
Joined: 27 Dec 2004
Home Cafe: Football
Location: It's "ell see." ELL SEE!!!

I want my own cloaking device . That would be too cool!
Yes doctor, I am sick.
Sick of those who are spineless.
Sick of those who feel self-entitled.
Sick of those who are hypocrites.
Yes doctor, an army is forming.
Yes doctor, there will be a war.
Yes doctor, there will be blood.....
Mod in Retirement

Posts: 53856
(Past Year: 1)
Joined: 29 Apr 2003
Home Cafe: Baseball
Location: Taking Souls...

I'd cloke myself right into the broncos cheerleader locker room!
I'm too lazy to make a sig at the moment
acsguitar
Hall of Fame Hero

Posts: 26722
Joined: 7 Apr 2004
Home Cafe: Baseball
Location: Back in General Talk WOOO!!!

Dodgers World Champs 2012

GO FORESTERS!!!!!!
suppasonic
Major League Manager

Posts: 1321
Joined: 8 Jun 2005
Home Cafe: Baseball
Location: Over thurr.

teddy ballgame wrote:As cool as this sounds, I can really only think of negative things that would come from this. VERY negative things.

Yeah. Things like this are just asking to become disasters. But still very cool.
jumpman8288
Major League Manager

Posts: 1607
Joined: 25 Feb 2004
Home Cafe: Baseball

Next

### Who is online

Users browsing this forum: No registered users and 3 guests

Forums Articles & Tips Sleepers Rankings Leagues

Today's Games
Wednesday, Sep. 17
(All times are EST, weather icons show forecast for game time)

 • LA Dodgers at Colorado(3:10 pm)
 • San Francisco at Arizona(3:40 pm)
 • Toronto at Baltimore(7:05 pm)
 • Boston at Pittsburgh(7:05 pm)
 • Washington at Atlanta(7:10 pm)
 • Miami at NY Mets(7:10 pm)
 • NY Yankees at Tampa Bay(7:10 pm)
 • Cincinnati at Chi Cubs(8:05 pm)
 • Cleveland at Houston(8:10 pm)
 • Chi White Sox at Kansas City(8:10 pm)
 • Detroit at Minnesota(8:10 pm)
 • Milwaukee at St. Louis(8:15 pm)
 • Seattle at LA Angels(10:05 pm)
 • Texas at Oakland(10:05 pm)
 • Philadelphia at San Diego(10:10 pm)