quantum physics

Science Art: Giant Animals: Modern and Extinct (detail), by Mary McLain

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These are prehistoric animals compared to their modern relatives and, for scale, a human. A human who’s interested in what they’re like… except when…

Look out! HELL PIG!

There are plenty more of the majestic giants (and some terrifying ones) at NPR’s Skunk Bear tumblog.

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Science Art: Jupiter's Rings by LORRI, 2007.

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The New Horizons Long Range Reconnaissance Imager (LORRI) snapped this photo of Jupiter’s ring system on February 24, 2007, from a distance of 7.1 million kilometers (4.4 million miles).

This processed image shows a narrow ring, about 1,000 kilometers (600 miles) wide, with a fainter sheet of material inside it. The faint glow extending in from the ring is likely caused by fine dust that diffuses in toward Jupiter. This is the outer tip of the “halo,” a cloud of dust …

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SONG: Thirty-Five Minutes (from Earth)

SONG: “Thirty-Five Minutes (from Earth)”.

ARTIST: grant.

SOURCE:Based on “NASA Windbots Could Explore Gas Giant Jupiter”, Sky News, 24 July 2015, as used in the post as used in the post “Windbots to explore Jupiter – the bumpier the ride, the better..”

ABSTRACT: The planet Jupiter is 35 light-minutes from Earth (give or take a couple of minutes depending on where in its orbit the planet is).

So a robot floating in the turbulent winds of Jupiter would take that long to send a mes…

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Science Art: Doree, Zeus, Faber by Edward Donovan


Three names for one little fish. And those are just the beginning.

I found this one on the Scientific Illustration tumblog, which quoted Wikipedia on the doree (etc.):

John Dory, St Pierre or Peter’s Fish, refers to fish of the genus Zeus, especially Zeus faber, of widespread distribution. It is an edible benthic coastal marine fish with a laterally compressed olive-yellow body which has a large dark spot, and long spines on the dorsal fin. The dark spot is used to flash an ‘evil ey…

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Science Art: Her Majesty's Cochins; Imported in 1843, published 1904.

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These are ostensibly Cochin chickens, or forerunners of what we’d call Cochins today. They’re a breed with a *lot* of character, and are uniquely suited, temperamentally, for being “pet” chickens moreso than egg factories or walking meat supplies. Despite the name (after a part of India), they’re originally from China.

This picture is from The Asiatics; Brahmas, Cochins and Langshans, all varieties, their origin; peculiarities of shape and color; egg production; their ma…

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Science Art: Soaking Up the Rays of a Sun-Like Star, by NASA Ames/JPL-Caltech/T. Pyle, 2015.

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This is an artist’s impression of a planet just discovered by NASA’s Kepler mission that’s gotten the folks at SETI all excited.

It’s the most Earth-like planet yet discovered. Kepler 452b sits in the “Goldilocks” zone around its star, not too hot and not too cold, and is about the same size (or is a little larger) and made of something like the same stuff as the planet we’re sitting around on right now. It takes 365 days to orbit around its sun, too. NASA’s calling it ou…

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SONG: “Particles of Attraction” (penitential AJ Allulli cover)

11 January 2015 // 0 Comments

SONG: “Particles of Attraction” (penitential cover) [Download] (To download: double right-click & “Save As”) ARTIST: grant. SOURCE: This is a cover making up for a late song in December. (And I’m still one in the hole – sorry.) This song was written by AJ Allulli, who fortuitously entered it into the Cover Swap project initiated on reddit’s We Are The Music Makers sub-board. ABSTRACT: Yes, so this is both a penitential cover and a cover swap cover. Hopefully, someone will do something interesting to this old Guild song, which I always thought needed something more. AJ Allulli’s original had a great beat and some lovely robotic vocoder stuff, so I decided to go 180 degrees opposite and do a cover that’s 100% acoustic. Well, it’s an electric bass, but I mic’ed the amp. I still can’t really play the erhu, but it doubles well enough for a Camper Van Beethoven-style fiddle. And the vocals did […]

Anesthesia works by stealing electrons from your brain.

14 August 2014 // 0 Comments

Scientific American has more on the weird quantum effects that make consciousness go bye-bye: General anaesthetics may extinguish consciousness through mysterious quantum biological effects that cause subtle changes in the electronic state of proteins, rather than through ‘conventional’ pharmacological mechanisms such as directly interfering with receptors or ion channels, new research proposes. The work, carried out by a team led by Luca Turin of the Alexander Fleming Research Centre in Athens, Greece, could go some way towards explaining a generic mechanism of action for general anaesthetics. … The team showed that if around 30 fruit flies are cooled to a few degrees above freezing to render them motionless, it is possible to obtain a steady electron spin resonance signal (ESR) from the population. When the flies are exposed to anaesthetic, a jump in the ESR signal is observed, compared with the resistant flies, indicating an increase in the number of unpaired electrons. … [Says Turin:] […]

MIT astrophysicists set to detect just *how* weird the universe really is.

26 February 2014 // 0 Comments

DailyGalaxy.com shares the weird – an experiment that’s been proposed to tell for once and for all if classical physics can explain the universe, or if everything there is really depends on “spooky action at a distance” and the peculiar rules of quantum physics: “It sounds creepy, but people realized that’s a logical possibility that hasn’t been closed yet,” says MIT’s David Kaiser, the Germeshausen Professor of the History of Science and senior lecturer in the Department of Physics. “Before we make the leap to say the equations of quantum theory tell us the world is inescapably crazy and bizarre, have we closed every conceivable logical loophole, even if they may not seem plausible in the world we know today?” Now Kaiser, along with MIT postdoc Andrew Friedman and Jason Gallicchio of the University of Chicago, have proposed an experiment to close this third loophole by determining a particle detector’s settings using some of the […]

Google Street View goes inside the Large Hadron Collider.

1 October 2013 // 0 Comments

Says it all right there. You want to see inside the world’s largest particle accelerator? Street View will take you into the underground tunnels: We’re delighted that CERN opened its doors to Google Maps Street View allowing anyone, anywhere in the world to take a peek into its laboratories, control centers and its myriad underground tunnels housing cutting-edge experiments. Street View also lets scientists working on the experiments, who may be on the other side of the world, explore the equipment they’re using. Needless to say, this is hardcore porn for electronics fetishists. Giant circuits! Heavy ion detectors! Huge arrays of… THINGS!

Science Art: Beetle (ASIC) by Sven Loechner

22 September 2013 // 0 Comments

The Beetle (ASIC) is a chip designed for the Large Hadron Collider, the giant particle accelerator designed to recreate the Big Bang. It’s part of the quark-detection equipment in an experiment called “Large Hadron Collider beauty.”

NASA engages the warp drive.

29 August 2013 // 0 Comments

Space.com brings us hurtling into the future with the science of quantum thrusters… a real-life warp drive: A warp-drive-enabled spacecraft would look like a football with two large rings fully encircling it. The rings would utilize an exotic form of matter to cause space-time to contract in front of and expand behind them. Harold “Sonny” White, a NASA physicist, is experimenting with these concepts on a smaller scale using a light-measuring device in the lab. … “We’re looking for a change in path length of the photon on the interferometer, because that would be potential evidence that we’re generating the effect we’re looking for,” White told SPACE.com. “We’ve seen, in a couple different experiments with several different analytic techniques, a change in optical-path length. We’re making one leg of the interferometer seem a little shorter because of this device being on, versus the device being off. That doesn’t mean that it’s what we’re looking for.” […]

Science Art: Positron Discovery by C.D. Anderson

16 June 2013 // 0 Comments

That scratch going up the left half of the picture might look like an accidental blemish, but it’s actually the first trace of a positron (a fundamental unit of antimatter) ever recorded. That thick line across the middle is a lead barrier. The thing went through it from the bottom to the top, we know, because the top part is more curved. The line could have been left by a proton, but it’s 10 times too long. So this is an electron with a positive charge. Nowadays, they’re commonly used in every hospital – the “P” in PET scan stands for “positronic.” We use antimatter to look inside people. In 1932, though, this little scratch was kind of amazing.

Computing with light.

14 May 2013 // 0 Comments

Science Daily isn’t talking about fiberoptics. They’re looking at the latest breakthroughs that take the “electrons” out of “electronics” by using photons to process information: Scientists from the Group of Philip Walther from the Faculty of Physics, University of Vienna succeeded in prototyping a new and highly resource efficient model of a quantum computer — the boson sampling computer. … The huge advantage of photons — a particular type of bosons — lies in their high mobility. … “According to the laws of quantum physics, the photons seem to take all possible paths at the same time. This is known as superposition. Amazingly, one can record the outcome of the computation rather trivially: one measures how many photons exit in which output of the network,” explains Philip Walther from the Faculty of Physics. Photon computers can go way, way faster than electronic computers because they can literally be in more places at once. Superposition. Instead […]

Why is there something? Anything? Instead of nothing?

1 April 2013 // 0 Comments

NPR asks the biggest question of all – the original question. Look around. Why is there something instead of nothing?: The best answer we have at this point is that the Universe emerged spontaneously from a random quantum fluctuation in some sort of primordial quantum vacuum, the scientific equivalent of “nothing.” However, this quantum vacuum is a very loaded nothing: it assumes the whole machinery of quantum field theory, the modern description of how elementary particles of matter interact with one another, was already in operation. In the quantum realm, even the lowest energy state, the “vacuum,” is not empty. Even if the energy of a quantum system is zero, it is never really zero due to the inherent quantum fluctuations about this state. A zero energy quantum state is as impossible as a perfectly still lake, with absolutely no disturbances on its surface. This quantum jitteriness amounts to fluctuations on the value of the […]

After everything, the Higgs boson still dooms us all. In a few billion years.

27 March 2013 // 0 Comments

Scientific American crunches the numbers that show how the mass of the Higgs boson spells the end of the universe… eventually: “If you use all the physics that we know now and you do what you think is a straightforward calculation, it is bad news,” says Joseph Lykken, a theorist who works at the Fermilab National Accelerator Laboratory in Illinois. “It may be that the universe we live in is inherently unstable.” … The Standard Model also says, as Lykken puts it, that “for the vacuum of empty space to be stable, we should be living at a minimum of potential energy.” In other words, most things end up resting in a place of lowest energy. A ball rolls downhill and settles in a low point; getting it to move away from this point requires a kick of energy. In the case of the universe it would be like living at the bottom of a […]

Lockheed Martin’s quantum computer steps into the limelight.

25 March 2013 // 0 Comments

New York Times has a pretty good profile of what could be the next big breakthrough in computing – the chips that understand “maybe”: [A] powerful new type of computer that is about to be commercially deployed by a major American military contractor is taking computing into the strange, subatomic realm of quantum mechanics. In that infinitesimal neighborhood, common sense logic no longer seems to apply. A one can be a one, or it can be a one and a zero and everything in between — all at the same time. It sounds preposterous, particularly to those familiar with the yes/no world of conventional computing. But academic researchers and scientists at companies like Microsoft, I.B.M. and Hewlett-Packard have been working to develop quantum computers. Now, Lockheed Martin — which bought an early version of such a computer from the Canadian company D-Wave Systems two years ago — is confident enough in the technology to upgrade […]

We’ll all be staring at quantum dots.

20 February 2013 // 0 Comments

The Economist is gazing into the pretty colors…not of quantum computers, but quantum television screens: An LCD screen works with a backlight shining through red, blue or green filters to produce the pixels which make up an image. Many televisions use light-emitting diodes (LEDs) as the backlight because they are brighter and use less power than fluorescent bulbs. Sony’s new televisions uses quantum dots with conventional LEDs to produce a hybrid backlight of greater intensity. In time, though, quantum dots might be used directly as the coloured pixels on screens. When a voltage is applied to a quantum dot it causes electrons contained in the crystal to release energy in the form of light. Changing the size of the dots changes the amount of energy released, which in turn determines the wavelength, and therefore the colour of the emitted light. This means they can be made into nanoscopic LEDs and, in principle, be tailored to […]

Quantum computers can work.

29 November 2012 // 0 Comments

Laboratory Equipment points the way for the next big breakthrough in thinking machines: Many quantum algorithms require that particles’ spins be “entangled,” meaning that they’re all dependent on each other. The more entanglement a physical system offers, the greater its computational power. Until now, theoreticians have demonstrated the possibility of high entanglement only in a very complex spin chain, which would be difficult to realize experimentally. In simpler systems, the degree of entanglement appeared to be capped: beyond a certain point, adding more particles to the chain didn’t seem to increase the entanglement. This month, however, in the journal Physical Review Letters, a group of researchers at MIT, IBM, Masaryk Univ. in the Czech Republic, the Slovak Academy of Sciences and Northeastern Univ. proved that even in simple spin chains, the degree of entanglement scales with the length of the chain. The research thus offers strong evidence that relatively simple quantum systems could offer considerable […]

Supersymmetry sideswiped. (“No, it doesn’t work that way!” says LHC.)

14 November 2012 // 0 Comments

BBC reports that the Large Hadron Collider is messing up a perfectly neat theory about how the universe fits together: Supersymmetry, or SUSY, has gained popularity as a way to explain some of the inconsistencies in the traditional theory of subatomic physics known as the Standard Model. The new observation, reported at the Hadron Collider Physics conference in Kyoto, is not consistent with many of the most likely models of SUSY. Prof Chris Parkes, who is the spokesperson for the UK Participation in the LHCb experiment, told BBC News: “Supersymmetry may not be dead but these latest results have certainly put it into hospital.” … Researchers at the LHCb detector … have measured the decay between a particle known as a Bs Meson into two particles known as muons. It is the first time that this decay has been observed and the team has calculated that for every billion times that the Bs Meson decays […]

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