Scientists Create Cloak of Invisibility

Another news item from Wanttoknow.info(for the full ABC news article click here): “Scientists are boldly going where only fiction has gone before to develop a Cloak of Invisibility. It isn’t quite ready to hide a Romulan space ship from Capt. James T. Kirk or to disguise Harry Potter, but it is a significant start and could show the way to more sophisticated designs. In this first successful experiment, researchers from the United States and England were able to cloak a copper cylinder. It’s like a mirage, where heat causes the bending of light rays and cloaks the road ahead behind an image of the sky. “We have built an artificial mirage that can hide something from would-be observers in any direction,” said cloak designer David Schurig, a research associate in Duke University’s electrical and computer engineering department. Cloaking used special materials to deflect radar or light or other waves around an object, like water flowing around a smooth rock in a stream. The new work points the way for an improvd version that could hide people and objects from visible light. Conceptually, the chance of adapting the concept to visible light is good, Schurig said in a telephone interview. But, he added, “From an engineering point of view it is very challenging.” The cloaking of a cylinder from microwaves comes just five months after Schurig and colleagues published their theory that it should be possible. In an ideal situation, the cloak and the item it is hiding would be invisible. An observer would see whatever is beyond them, with no evidence the cloaked item exists.

Note: Remember that technologies developed in top-secret military, intelligence, and other government projects are generally at the very least 10 years in advance of anything being developed in the public domain.”

Advertisements

Scientists teleport two different objects

From WantToKnow.info: “Physicists in Denmark have teleported information from light to matter bringing quantum communication and computing closer to reality. Until now scientists have teleported similar objects such as light or single atoms over short distances from one spot to another in a split second. But Professor Eugene Polzik and his team at the Niels Bohr Institute at Copenhagen University in Denmark have made a breakthrough by using both light and matter. “It is one step further because for the first time it involves teleportation between light and matter, two different objects. One is the carrier of information and the other one is the storage medium,” Polzik explained in an interview on Wednesday. The experiment involved for the first time a macroscopic atomic object containing thousands of billions of atoms. They…teleported the information a distance of half a meter but believe it can be extended further. “Teleportation between two singe atoms had been done two years ago by two teams, but this was done at a distance of a fraction of a millimeter,” Polzik, of the Danish National Research Foundation Center for Quantum Optics, explained. “Our method allows teleportation to be taken over longer distances because it involves light as the carrier of entanglement.” Quantum entanglement involves entwining two or more particles without physical contact.” For the full article click here.

Discernment

If you want to shrink something,
you must first allow it to expand.
If you want to get rid of something,
you must first allow it to flourish.
If you want to take something,
you must first allow it to be given.
This is called the subtle perception
of the way things are.

The soft overcomes the hard.
The slow overcomes the fast.
Let your workings remain a mystery.
Just show people the results.

Tao Te Ching #36 (trans. Stephen Mitchell)