Quantum Mechanics. Mathematics, Systems, Complexity & Chaos. Nanoscience. String Theory. Physicist suggests speed of light might be slower than thought. (Phys.org) —Physicist James Franson of the University of Maryland has captured the attention of the physics community by posting an article to the peer-reviewed New Journal of Physics in which he claims to have found evidence that suggests the speed of light as described by the theory of general relativity, is actually slower than has been thought.
The theory of general relativity suggests that light travels at a constant speed of 299,792,458 meters per second in a vacuum. It's the c in Einstein's famous equation after all, and virtually everything measured in the cosmos is based on it—in short, it's pretty important. But, what if it's wrong? Franson's arguments are based on observations made of the supernova SN 1987A–it exploded in February 1987. Colourful Chemistry. An index of all the infographics posted on the site – just click the image to go to the relevant page.
Elements | Food Chemistry | Alcohol Chemistry | Organic Chemistry | Everyday Compounds | Colourful Chemistry | Aroma Chemistry | Other Graphics Elements Infographics Group 1 The Alkali Metals. List of unsolved problems in physics. Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result.
The others are experimental, meaning that there is a difficulty in creating an experiment to test a proposed theory or investigate a phenomenon in greater detail. Unsolved problems by subfield Thermometer measures temperature to 30 billionths of a degree. The thermometer is three times more accurate than current systemsIt works by circulating green and red light around a disc-shaped crystalAs the crystal heats up, the red light slows down compared to green lightBy forcing the light to circulate thousands of times, scientists can measure the difference in speed - and as a result temperature - with great precision By Ellie Zolfagharifard Published: 13:15 GMT, 2 June 2014 | Updated: 14:46 GMT, 2 June 2014.
Oxford University scientists create a 'SUPERNOVA' in the lab. A team from Oxford University have recreated a supernova explosionThe experiment was performed with the UK's Vulcan laser facilityThey heated a rod to millions of degrees by focusing 3 laser beams on itThe rod then exploded into a surrounding gas, mimicking the interaction between a star going supernova and the interstellar mediumResults prove that supernovas do not expand uniformly as once thoughtCould also solve the mystery of how magnetic fields formed in the universe By Jonathan O'Callaghan Published: 11:24 GMT, 2 June 2014 | Updated: 14:34 GMT, 2 June 2014.
The physics of water drops and lift-off. The flow of fluids is one of the most complex, beautiful, and amazing things in physics.
Slow motion pictures of drops landing on water or of two fluids mixing can be simply gorgeous. Even more amazing, the basic physics of fluid flow was worked out way back in the 19th century. Those equations, though, hold riches that are still being uncovered today. Some of the most spectacular work in recent years has involved uncovering what happens as a drop of fluid hits a surface. Direction of Time Fuzzy for Subatomic Particles. Subatomic particles don't care if time moves forward or backward — it's all the same to them.
But now physicists have found proof of one theorized exception to this rule. Usually, time is symmetrical for particles, meaning events happen the same way if time progresses forward or backward. Spooky Entanglement, Antimatter & Nuclear Fusion. By Clara Moskowitz, LiveScience Senior Writer | February 18, 2011 08:55am ET Credit: Mark Dennis.
From bizarre antimatter to experiments that tie light up in knots, physics has revealed some spooky sides of our world. Here are seven of the most mind-blowing recent discoveries. The Coolest Little Particles in Nature. Dreamy Images Reveal Beauty in Physics. A dreamy new exhibition of images showcases the art of physics, from the beauty of a bubble rising to the flow of water around coral.
The images, part of the American Physical Society's Division of Fluid Dynamics Gallery of Fluid Motion, are drawn from the most artistic and evocative research presented at the Fluid Dynamics annual meeting. The meeting was held from Nov. 18-20 in San Diego. Top 50 Physics Ideas: the principles that changed the world. The following list is based on an excellent science book known as the 50 Physics Ideas You Really Need to Know.
It is about the top ideas that change this natural science forever and help us have a better understanding of nature and how the universe behaves. It covers the discoveries of the last two millennia from the mathematic laws of nature developed by the ancient Greeks way up to the infinite possibilities of Quantum Physics, passing be key elements of Scientific Revolution. The list as well as the book is dived into various sections including Matter In Motion, Beneath The Waves, Conundrums, Splitting Atoms and finally Space and Time. Hopefully, it will give you a good overview of Physics, one of academic oldest disciplines. Click here to get the Physics book now, best prices guaranteed. Physics.
Watch the everyday Slinky 'defy' the laws of physics and gravity (but try not to go loopy) By Eddie Wrenn Published: 09:09 GMT, 22 June 2012 | Updated: 10:42 GMT, 22 June 2012 It's a childhood toy that we have probably all seen - but watch it in slow-motion, and the Slinky appears to defy the laws of physics. How the Modern Physics was invented in the 17th century, part 3: Why Galileo didn’t discover universal gravitation?
Note: this is the third of three parts of the essay. The first two parts were published yesterday and the day before (see links at the bottom of the page). The very first discovery in fundamental physics, made by Galileo, – the law of free fall – was also the first discovery in physics of gravity. It was the starting point for Newton’s law of universal gravitation a few decades later. Was it possible for Galileo himself to discover the law of universal gravitation at his level of mathematization and by his style of doing science? Yes it was, although Galileo’s predisposition was quite unfavorable, since he rejected statements on attraction as an explanation of the Solar system.
The secret molecular life of soap bubbles (1913) Nature can be extremely devious in the way it hides its secrets. Sometimes the most remarkable and profound insights are staring us right in the face every day in the most mundane phenomena. For instance, we have all seen the spectacular colors that can appear in soap bubbles: LHC antimatter anomaly hints at new physics - physics-math - 23 November 2011. Read full article Continue reading page |1|2 The Large Hadron Collider has turned up differences in how particles of matter and antimatter decay that the reigning standard model of physics may not be able to explain WE ARE here thanks to a curious imbalance in the universe.
Animation reveals the world's hidden equations. MacGregor Campbell, contributor Although they don't actually exist in the physical world, our most powerful tools could be mathematical equations. They underlie much of modern technology, from radio to power generation, to photo compression and electronic musical instruments. In our latest animated explainer, we look at how the wave equation, Maxwell's equations and the Fourier transform came to rule the modern world.
Quantum Computers Will Solve Problems that would take Today's Computers Longer than the Age of the Universe. Physicists Predict Properties of Prime Numbers from Freezing Liquids. The accidental universe: Science's crisis of faith—By Alan P. Lightman. Physicists observe the splitting of an electron inside a solid.
Anonymous Donor Saves Last U.S. Particle Physics Lab From Going Under. Tiny 'Soccer Ball' Space Molecules Could Equal 10,000 Mount Everests. 'Faster Than Light' Neutrino Was Product of Loose Cable at CERN. Scientists capture first image of two atoms INSIDE a molecule (but we'll just have to take their word for it) Welcome to Explorations in Science with Dr. Michio Kaku.