110 years ago Albert Einstein published a theory that revolutionized the way we think about the universe. In this video I’ll show you how to prove its two postulates using easy-to-understand real-world experiments, and how even the simplest understanding of quantum mechanics can be used to wrap your mind around why time must slow down the faster an object moves.
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.”
Boeing‘s Microlattice is the lightest metal ever made, while its structure makes it strong. Strength and record breaking lightness make it ideal for future planes and vehicles.
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).