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“大统一”可能是物理学的一条死路
Grand Unification May Be A Dead-End For Physics
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Science
Could No New Particles At The LHC Be Exactly What Physics Needs?
Based on what’s known and predicted of the Standard Model, there should be a particular pattern to two-photon signals with a given particular energy. A bump is the most surefire indication we can look for in the search for a new particle, and a bump of a particular size, width and energy could either indicate a completely new, fundamental, beyond-the-standard-model particle, the first of its kind - or a new standard model feature - or it could simply be statistical noise. As I read the articles in the news, I was fascinated by the mathematics that allowed physicists to reconstruct the structure of elementary matter. It wouldn’t have been difficult to predict in 1995 that I’d go on to earn a PhD in theoretical high energy physics.
Forbes
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Science
Has the Large Hadron Collider detected a new particle?
Physics researchers at CERN are preparing to sift through the latest batch of data from the Large Hadron Collider, an opportunity that some say happens only once in a lifetime. Between April last year, when the collider was switched on, and the end of the year, scientists at CERN collected about 2.6 “inverse femtobarns” (a unit of measurement for particle collision events) of data. "This is the time when the probability of finding something new is highest," Tiziano Camporesi, head of the Compact Muon Solenoid (CMS) experiment at CERN, told Reuters. The Large Hadron Collider, located beneath the Earth on the border between France and Switzerland, is known for smashing protons into each other at very high speeds and examining the particles created by the collisions.
The Christian Science Monitor
Large Hadron Collider finds three new particles, confirms fourth
Physics prepares to feast on collider data, seeking dark universe
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Astronomers Discover Evidence of a 'Direct-Collapse Black Hole'
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Science
An Astrophysicist Debunks 3 Popular Misconceptions About Black Holes
What things do most people misunderstand or not know about black holes? originally appeared on Quora: the knowledge sharing network where compelling questions are answered by people with unique insights. Answer by Hossam Aly, Astrophysics Ph.D, on Quora: These are the three most common misconceptions about black holes that I personally encounter: 1) Galaxies orbit their central black holes. We’re all familiar with our solar system, where a bunch of planets and asteroids (and glorified rocks, such as Pluto) orbit a central object. Astronomers call that a Keplerian system (i.e, it follows Kepler’s laws of motion). In these systems, the mass is completely dominated by the central object and each
Forbes
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No, Humans Will Never Achieve Interstellar Travel
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Lifestyle
In Opinion: How does the detection of a second gravitational wave add to what we know?
Quora Questions are part of a partnership between Newsweek and Quora, through which we'll be posting relevant and interesting answers from Quora contributors throughout the week. Read more about the partnership here. Answer by Shern Ren Tee, PhD student in polymer physics: Science proceeds either by pessimism or optimism: a pessimist looks at a scientific result and thinks “What is the most boring, terrible, uninspiring reason this result could have?,” while an optimist looks at the same result and thinks from there to a Nobel Prize. Both are needed: the pessimists prevent bad science while the optimists propel good science. And LIGO’s (Laser Interferometer Gravitational-Wave Observatory) second
Newsweek
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Science
Turns Out You Can Escape from a Black Hole
Stephen Hawking has revised his theory on black holes. In a paper to be published in the Physical Review Letters, Hawking and two colleagues explain how they believe matter is dispelled from a black hole at the end of its life. "They are not the eternal prisons they were once thought," Hawking said at a recent conference.
Esquire
Science
From Nothing To You In 12 Easy Steps
In the beginning, there was space and time, and the fabric of space was expanding at a fantastic rate. That inflationary state came to an end where we are, converting the energy of space into matter, antimatter and radiation. This hot, primordial soup expanded and cooled, creating a slight asymmetry between matter (slightly more) and antimatter (slightly less). The cooling continued, nuclei formed, and eventually, so did neutral atoms. These atoms clumped together in gravitationally overdense regions, forming the first stars after tens of millions of years. The most massive stars run out of fuel and die in supernovae, enriching the Universe with heavy elements. On larger scales, star clusters,
Forbes
Gizmag
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