Category Archives: Physics

Invisible Gravity Waves Detectable with Quantum Mechanics

The existence of gravitational waves, or ripples in space and time, has long been predicted, but the elusive phenomenon has eluded scientists for decades. Now researchers are proposing a new method to detect these cosmic wrinkles that relies on the quantum nature of atoms. Gravitational waves are a consequence of Einstein’s general theory of relativity,… Read More »

Speed of light may not be constant, phycisists say

Photons of light, as they fly through space, are captured and re-emitted by these virtual particles. Urban and his colleagues propose that the energies of these particles — specifically the amount of charge they carry — affect the speed of light. Since the amount of energy a particle will have at the time a photon… Read More »

Light bursts out of a flying mirror

A dense sheet of electrons accelerated to close to the speed of light can act as a tuneable mirror that can generate bursts of laser-like radiation in the short wavelength range via reflection. A team of physicists from the Max-Planck-Institute of Quantum Optics (MPQ) in Garching, the Ludwig-Maximilians-Universität (LMU) München, the Queens University Belfast (QUB)… Read More »

Visible Spectrum: Can it be color shifted?

A typical human eye will respond to wavelengths from about 390 to 700 nm.[1] In terms of frequency, this corresponds to a band in the vicinity of 430–790 THz. A light-adapted eye generally has its maximum sensitivity at around 555 nm (540 THz), in the green region of the optical spectrum (see: luminosity function). The… Read More »

Computing 1-0-1: quantum information in an atom’s core

… As published in Nature today, my colleagues and I have established a world-first in this area. We’ve demonstrated a quantum bit (or qubit) based on the nucleus of a single atom in silicon, promising dramatic improvements for data processing in the ultra-powerful quantum computers of the future. …What determines the size of the atom… Read More »

New solar-cell coating could boost efficiency

Throughout decades of research on solar cells, one formula has been considered an absolute limit to the efficiency of such devices in converting sunlight into electricity: Called the Shockley-Queisser efficiency limit, it posits that the ultimate conversion efficiency can never exceed 34 percent for a single optimized semiconductor junction. Now, researchers at MIT have shown… Read More »

Iranian Scientist Claims To Invent ‘Time Machine’

An Iranian inventor recently claimed he created a “time machine,” according to reports. But the Internet is skeptical, and with good reason. The Telegraph caused a stir Wednesday with a story about a young Tehran-based scientist, Ali Razeghi, and an invention he calls“The Aryayek Time Traveling Machine.” Reportedly something of a mad scientist, Razeghi claimed… Read More »

Scientists discover dark lightning

… scientists recently discovered something mind-bending about lightning: Sometimes its flashes are invisible, just sudden pulses of unexpectedly powerful radiation. It’s what Joseph Dwyer, a lightning researcher at the Florida Institute of Technology, has termed dark lightning. Unknown to Franklin but now clear to a growing roster of lightning researchers and astronomers is that along… Read More »

Puzzle of how spiral galaxies set their arms comes into focus

As the shapes of galaxies go, the spiral disk — with its characteristic pinwheel profile — is by far the most pedestrian. Our own Milky Way, astronomers believe, is a spiral. Our solar system and Earth reside somewhere near one of its filamentous, swept-back arms. And nearly 70 percent of the galaxies closest to the… Read More »

Laser-like photons signal major step towards quantum ‘Internet’

The realisation of quantum networks is one of the major challenges of modern physics. Now, new research shows how high-quality photons can be generated from ‘solid-state’ chips, bringing us closer to the quantum ‘internet’. The number of transistors on a microprocessor continues to double every two years, amazingly holding firm to a prediction by Intel… Read More »

CERN: New particle is confirmed Higgs boson

A new particle discovered at the Large Hadron Collider last year has been confirmed to be the Higgs boson. Here, proton-proton collisions at the Large Hadron Collider showing events consistent with the Higgs. (Credit: CERN/CMS/Taylor, L; McCauley, T) Physicists from the Atlas and CMS experiments at CERN’s Large Hadron Collider announced Thursday that they are… Read More »

NASA has found a free particle accelerator floating in space

In early 2007, NASA’s Cassini spacecraft observed something extraordinary around Saturn. An unusually strong blast of solar wind sent subatomic particles crashing into the ringed planet’s magnetic field, giving rise to perhaps the most tremendous shock wave ever observed emanating from the planet. But newly announced findings reveal the biggest surprise was yet to come.… Read More »

New Light On Possible “Fifth Force of Nature”

… Every fundamental particle (every electron, neutron and proton, to be specific), explained Hunter, has the intrinsic atomic property of “spin.” Spin can be thought of as a vector — an arrow that points in a particular direction. Like all matter, Earth and its mantle — a thick geological layer sandwiched between the thin outer… Read More »

Curves in spacetime violate Heisenberg’s uncertainty principle

If an object traveling through spacetime can loop back in time in a certain way, then its trajectory can allow a pair of its components to be measured with perfect accuracy, violating Heisenberg’s uncertainty principle. This new finding involves a particular trajectory called an open timelike curve (OTC), which is a special case of a… Read More »

Light from nothing

‘Virtual particles’ can have real physical effects. A vacuum might seem like empty space, but scientists have discovered a new way to seemingly get something from that nothingness, such as light. And the finding could ultimately help scientists build incredibly powerful quantum computers or shed light on the earliest moments in the universe’s history. Quantum… Read More »

Expert psychologist suggests the era of genius scientists is over

Dean Keith Simonton, a psychology professor at the University of California, has published a comment piece in the journal Nature, where he argues that it’s unlikely mankind will ever produce another Einstein, Newton, Darwin, etc. This is because, he says, we’ve already discovered all the most basic ideas that describe how the natural world works.… Read More »

Miniature Star Trek-Style ‘Tractor Beam’ Created in Lab

…A group of scientists from Scotland and the Czech Republic says it’s managed to drag around teeny-tiny objects using nothing more than a beam of light. That’s essentially how it worked when the crew of the starship Enterprise periodically unleashed its tractor beam to tug derelict vessels (and once even the captain himself, snared by… Read More »

Do cell phones cause cancer?

Do cell phones cause cancer?  There was a big study of cell phones that found no cancer (brain, nerve, salivary and leukemia anyway): … the Journal of the National Cancer Institute published the results of a massive study in Denmark that followed the cancer histories of 420,000 cell phone users over 13 years. http://jnci.oxfordjournals.org/content/93/3/203.abstract?ijkey=fe4d6f43f440f51426ab0fba45f17afc8d353c06&keytype2=tf_ipsecsha The… Read More »

A rock is a clock: Physicist uses matter to tell time

Ever since he was a kid growing up in Germany, Holger Müller has been asking himself a fundamental question: What is time? That question has now led Müller, today an assistant professor of physics at the University of California, Berkeley, to a fundamentally new way of measuring time. Taking advantage of the fact that, in… Read More »

Audio Myths Workshop

I found this in my quest to improve my home recording and there are many things in it everyone will find interesting. Check out at least up to 13:00 after the photo lineup.  

Freezing antimatter could allow scientists to study it

A Canadian scientist at the forefront of research on antimatter has proposed a novel way to solve one of the field’s most daunting problems — what to keep it in. For experimental physicists, antimatter is an elusive quarry because it will vanish in a flash of light upon contact with anything made of regular matter.… Read More »

Quantum Jumping – Communicate With Your Subconscious Mind – Tonight Dec 26th, 6 pm Pacific (8pm Central/9pm Eastern)

Since the 1920’s, quantum physicists have been trying to make sense of an uncomfortable and startling possibility—that an infinite number of alternate universes exist. Leading scientists like Stephen Hawking, Michio Kaku and Neil Turok, all of whom are responsible for life-changing breakthroughs in the field of quantum physics, have all suggested the existence of multiple… Read More »

Is ‘reality’ unreal? Scientists aim to find out

What if everything — all of us, the world, the universe — was not real? What if everything we are, know and do was really just someone’s computer simulation? The notion that our reality was some kid on a couch in the far future playing with a computer game like a gigantic Sim City, or… Read More »

USC scientists ‘clone’ carbon nanotubes to unlock their potential for use in electronics

Image: Carbon nanotubes of different chirality Robert Perkins – Scientists and industry experts have long speculated that carbon nanotube transistors would one day replace their silicon predecessors. In 1998, Delft University built the world’s first carbon nanotube transistors – carbon nanotubes have the potential to be far smaller, faster, and consume less power than silicon… Read More »

Researchers create laser the size of a virus particle

Megan Fellman – A Northwestern University research team has found a way to manufacture single laser devices that are the size of a virus particle and that operate at room temperature. These plasmonic nanolasers could be readily integrated into silicon-based photonic devices, all-optical circuits and nanoscale biosensors. Reducing the size of photonic and electronic elements… Read More »

Physicists May Have Evidence Universe Is A Computer Simulation

Physicists say they may have evidence that the universe is a computer simulation. How? They made a computer simulation of the universe. And it looks sort of like us. A long-proposed thought experiment, put forward by both philosophers and popular culture, points out that any civilisation of sufficient size and intelligence would eventually create a… Read More »

NASA: Tractor Beams May Actually Work

Tractor Beams May Actually Work: NASA Studying 3 Methods – YouTube.   … we have located a “working” tractor beam. It’s been experimentally demonstrated by the team of David B. Ruffner and David G. Grier at the Dept. of Physics and Center for Soft Matter Research (NY). The results were announced online 10/22/2012. The official… Read More »

Study explains the mystery of ball lightning

… Led by CSIRO scientist John Lowke, the new theory focuses on how ball lightning occurs in houses and aeroplanes – and how it can pass through glass. His theory also proposes that ball lightning is caused when leftover ions electric energy, which are very dense, are swept to the ground following a lightning strike.… Read More »

Solar cell consisting of a single molecule

Photosynthesis allows plants to convert light into chemical energy. Utilizing this process to produce electrical energy is a research goal worldwide. Now a team of scientists at the Technische Universitaet Muenchen and the Tel Aviv University has succeeded in directly deriving and measuring the photoelectric current generated by single molecules of the photosystem I. As… Read More »

Quantum causal relations: A causes B causes A

Fabio Costa – One of the most deeply rooted concepts in science and in our everyday life is causality; the idea that events in the present are caused by events in the past and, in turn, act as causes for what happens in the future. If an event A is a cause of an effect… Read More »

Mouth of Giant Black Hole Measured for First Time

The point of no return: In astronomy, it’s known as a black hole—a region in space where the pull of gravity is so strong that nothing, not even light, can escape. Black holes that can be billions of times more massive than our sun may reside at the heart of most galaxies. Such supermassive black… Read More »

Competing claims pile up around new element 113

It has teased researchers for almost a decade. But new evidence for the existence of super-heavy element 113 could see Japan claim its first spot on the periodic table – that is, unless a team in Russia wins official approval for its latest results and bags the right to name the element. Confirming the find… Read More »

Nano-material sets record turning heat to electricity

A scrambled-up material has broken the record for converting heat into electricity. Findings published today in Nature suggest that disorder may be the key to creating a new generation of energy-harvesting technologies1. Laptop owners and car mechanics alike know that heat is a major by-product of any kind of work. In power stations, for example,… Read More »