To Infinite Speed And Beyond

To Infinite Speed And Beyond

Illustration by Peter Allen/Harvard SEAS

Illustration by Peter Allen/Harvard SEAS

Scientists developed a new method for light to travel infinitely fast, with new on-chip material.

New zero-index material made of silicon pillar arrays embedded in a polymer matrix and clad in gold film creates a constant phase of light, which stretches out in infinitely long wavelengths.

In the 21st century, photonic devices, which use light to transport large amounts of information quickly, will enhance or even replace the electronic devices.

But there’s a step needed before optical connections can be integrated into telecommunications systems and computers: researchers need to make it easier to manipulate light at the nanoscale.

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS), designed the first on-chip metamaterial with a refractive index of zero, meaning that the phase of light can travel infinitely fast.

This new metamaterial was developed in the lab of Eric Mazur, the Balkanski Professor of Physics and Applied Physics and Area Dean for Applied Physics at SEAS, and is described in the journal Nature Photonics.

Eric Mazur, said:

“Light doesn’t typically like to be squeezed or manipulated but this metamaterial permits you to manipulate light from one chip to another, to squeeze, bend, twist and reduce diameter of a beam from the macroscale to the nanoscale. It’s a remarkable new way to manipulate light.”

Source Harvard University
via wordlesstech

Symmetry Between Particles and Antiparticles Proved

Symmetry Between Particles and Antiparticles Proved

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A scientific team proved the fundamental symmetry of nature , measuring the mass of particle and their electrical charge, with the help of the Large Hadron Collider of CERN.

The study, carried out by researchers at the University of Sao Paulo, Brazil, demonstrated the existence of symmetry between particles and antiparticles core, concerning their charge, parity and time.

The experiment was part of a broader study, in order to detect differences in the manner in which protons and neutrons in the nuclei are joined, with their antiparticles.

The antimatter have the same mass but opposite electric charge of the particles.

Marcelo Munoz, professor of Physics at the University of Sao Paulo, said:

“After the Big Bang, for every particle of matter an antiparticle was created. In Particle Physics, the crucial question is whether all the laws of physics exhibit a peculiar kind of symmetry known as CPT (charge, parity, time). These measurements show the existence of a fundamental symmetry between core and antinuclear.”

These measurements were made possible thanks to an experiment of ring Large Hadron Collider (LHC).

via wordlesstech

Stunning Kinetic Sculptures That Look Alive As They Move

Stunning Kinetic Sculptures That Look Alive As They Move

Dutch artist Theo Jansen has been working for 16 years to create sculptures that move on their own in eerily lifelike ways. Each generation of his “Strandbeests” is subject to the forces of evolution, with successful forms moving forward into new designs. Jansen’s vision and long-term commitment to his wooden menagerie is as fascinating to observe as the beasts themselves.

His newest creatures walk without assistance on the beaches of Holland, powered by wind, captured by gossamer wings that flap and pump air into old lemonade bottles that in turn power the creatures’ many plastic spindly legs.

Source: www.ted.com