When it first came out, the IISc study created quite a stir because superconductivity at room temperature is seen as the holy grail of physics.
Bengaluru: Researchers from the Indian Institute of Science (IISc), Bengaluru, have reiterated their promising, if controversial, discovery of superconductivity at room temperature, with eight more researchers backing the finding originally put forth by a team of two last year.
The team of 10 posted a preprint of their paper on arXiv, an open repository where peers discuss academic research, last week, but it is yet to be peer-reviewed or published in any scientific journal.
The warping of spacetime, in the General Relativistic picture, by gravitational masses is what causes the gravitational force. It is assumed, but not experimentally verified, that antimatter masses will behave the same as matter masses in a gravitational field.LIGO/T. PYLE
One of the most astonishing facts about science is how universally applicable the laws of nature are. Every particle obeys the same rules, experiences the same forces, and sees the same fundamental constants, no matter where or when they exist. Gravitationally, every single entity in the Universe experiences, depending on how you look at it, either the same gravitational acceleration or the same curvature of spacetime, no matter what properties it possesses.
At least, that’s what things are like in theory. In practice, some things are notoriously difficult to measure. Photons and normal, stable particles both fall as expected in a gravitational field, with Earth causing any massive particle to accelerate towards its center at 9.8 m/s2. Despite our best efforts, though, we have never measured the gravitational acceleration of antimatter. It ought to accelerate the exact same way, but until we measure it, we can’t know. One experiment is attempting to decide the matter, once-and-for-all. Depending on what it finds, it just might be the key to a scientific and technological revolution.
Princeton University researchers have begun crystallizing light as part of an effort to answer fundamental questions about the physics of matter. The researchers are not shining light through crystal – they are transforming light intocrystal.
Understanding exactly what happens after subatomic particles collide has been a long struggle for physicists. For decades, the best tool involved basic sketches (called Feynman diagrams) of each possible result. For all but the simplest scenarios, this method fills pages with drawings and equations.
Architects will find out if the tallest building in America really is 1,776 feet tall, in a few weeks. One World Trade Center technically soars to that height, but about 408 feet of it isn’t building but “spire.” The arbiter of tall buildings, the Council on Tall Buildings and Urban Habitat, has yet to decide whether that’s going to count.
Sometimes who you work with can be just as important as the job itself. And if physics is your passion the opportunity of a lifetime has just popped up, as Stephen Hawking is now looking for a new assistant…
Scientists say time travel is impossible by showing a single photon cannot travel faster than the speed of light.
Physicists in Hong Kong say they have proved that a single photon obeys Einstein’s theory that nothing can travel faster than the speed of light — demonstrating that outside science fiction, time travel is impossible.