AlbertEinstein
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Scientists record a fourth set of gravitational waves
Last year, researchers confirmed the existence of gravitational waves with two Laser Interferometer Gravitational-wave Observatory (LIGO) detectors. Shortly thereafter, they detected two additional gravitational wave-causing events that sent ripples through the universe. Well, we can now add a fourth to that list, as astronomers announced another set of waves. And for the first time, they observed the waves with a third detector -- the Italy-based Virgo.
NASA plans to make a telescope out of the Sun
As NASA astronomers peer further and further into space, they require ever larger and more powerful telescopes to do so. That's why one team of researchers from the Jet Propulsion Lab have proposed using the biggest object in our solar system, the Sun, as a cosmic magnifying glass.
Inhabitat's Week in Green: Tesla's most affordable EV, and more!
Tesla just announced plans to launch its most affordable electric car next month. The Model 3 is expected to cost $35,000 and is set to debut on March 31st -- but it already has competition. Chevrolet showcased the Bolt EV at the start of the year, and Volkswagen confirmed that it's working on the world's first mass-market electric car. Meanwhile, Google is developing electric cars that drive themselves, and soon they'll be able to charge wirelessly. In aviation news, Easyjet announced plans to trial the first hybrid hydrogen plane, and Elon Musk is considering building a vertical take-off and landing electric jet.
Newly discovered quasar cluster may be the largest structure in the universe
The Large Quasar Group isn't just a psychedelic cover band, but also an enormous cluster of quasars forming what an international team of astronomers led by University of Central Lancashire are calling "the largest known structure in the universe." When the name isn't being reappropriated for British laser tag, its being used to describe the distant (and therefore aged) nuclei of galaxies which often group together in clusters; this cluster just happens to also be the largest such structure ever discovered, making it the de facto largest in the known universe. Resultantly, it also may challenge an Einstein-derived supposition that, "the universe, when viewed at a sufficiently large scale, looks the same no matter where you are observing it from." Of course, you'd have to be incredibly huge to determine conclusively whether or not that's the case, but that Einstein guy was pretty good at making educated guesses. [Photo credit: M. Kornmesser, ESO]
Einstein Archives website rolls out first phase of project to get 80,000 documents online
Believe it or not, there are still things that have yet to be put on the internet. That has included most of Albert Einstein's archives, a portion of which has previously been available, but which now has a greatly expanded online presence courtesy of the Hebrew University of Jerusalem (and a grant from the Polonsky Foundation UK). The first phase of that expansion includes some 2,000 digitized documents, ranging from personal correspondence to scientific papers, which are fully searchable and able to be examined right down to the finest detail. Additional documents will continue to be added over the course of 2012, with the ultimate goal being to get all of the 80,000+ items in the university's own archives online (they've all already been cataloged). No word on any future plans for tablet apps or the like, but you can dive into the new website right now at the source link below.
Faster-than-light neutrinos are back in the game
Back in September, CERN dropped the improbable news about its faster-than-light neutrinos, causing eggheads worldwide to cry foul. Understandable really, as if true, a lot of what we think we know about the universe essentially falls apart. So, expect severe bouts of head-scratching once more, as a second round of experiments from the same OPERA collaborative has reported similar results. The initial experiments used a long chain of neutrinos, fired from point A to B. Skeptics claimed that this might have introduced an element of uncertainty to the results -- the new tests used much shorter blasts, meaning that if they arrived just as quickly, then this potential cause for error is scratched out. The new data still needs to undergo the usual peer review, and other possible causes for error remain. For now though, it looks like one of the main arguments against has been addressed, making the Einstein-challenging neutrinos one step closer (or is that ahead?) to re-writing the rule book.
Remember those faster-than-light neutrinos? Great, now forget 'em
A week ago the world went wild over CERN's tentative claim that it could make neutrinos travel faster than light. Suddenly, intergalactic tourism and day trips to the real Jurassic Park were back on the menu, despite everything Einstein said. Now, however, a team of scientists at the University of Groningen in the Netherlands reckons it's come up with a more plausible (and disappointing) explanation of what happened: the GPS satellites used to measure the departure and arrival times of the racing neutrinos were themselves subject to Einsteinian effects, because they were in motion relative to the experiment. This relative motion wasn't properly taken into account, but it would have decreased the neutrinos' apparent journey time. The Dutch scientists calculated the error and came up with the 64 nanoseconds. Sound familiar? That's because it's almost exactly the margin by which CERN's neutrinos were supposed to have beaten light. So, it's Monday morning, Alpha Centauri and medieval jousting tournaments remain as out of reach as ever, and we just thought we'd let you know.
Galaxy cluster research supports Einstein's Theory of Relativity on a cosmic level
In one small win for Einstein, one giant win for mankind, scientists at the Niels Bohr Institute have proved his General Theory of Relativity on a cosmic scale through their research of large galaxy clusters. Accordingly, the clusters -- which are the largest known gravity-bound objects -- have such a strong pull that they should cause light to "redshift," or proportionally increase in wavelength, shifting towards the red end of the visible spectrum. To test it, researchers measured beams from 8,000 clusters, revealing that they do indeed cause a change in light's wavelength, supporting Einstein's theory to a T. One good turn deserves another, right Albert? Armchair cosmologists can hop on over to the source link to learn more.
CERN scientists discover particle traveling faster than the speed of light, Einstein theory threatened
It ain't over till the LHC says so, which is why researchers at CERN are opening up their most recent OPERA experiment to the scientific community before officially releasing its findings. Why, you ask? Because the experiment could shatter one of the fundamentals of physics -- Einstein's theory of special relativity, which says nothing with mass can accelerate faster than the speed of light. While studying neutrino oscillations -- where particles shift from one type of subatomic particle (muon-neutrinos) to another (tau-neutrinos) -- scientists clocked a beam of muon-neutrinos outpacing the aforesaid ray of light by 60 nanoseconds. Calling the result "crazy," lead scientist Antonio Ereditato published the findings online, hoping to attract the attention of others who might shed some light on what it all means. We're not expecting a conclusive answer any time soon, but budding whiz-kids can get educated in the links below.
Quantum entanglement could mean completely secure data transfer
By tapping into Albert Einstein's idea of "spooky action at a distance," researchers at the University of Copenhagen's Niels Bohr Institute have discovered what might be the key to completely secure data transfer -- keeping particles "entangled" for up to an hour. Until now, the link between two entangled systems could only be maintained for a fraction of a second. This development could enable a direct link between two systems of communication -- you do something to one and the other will "know." Although limited to the lab right now, scientists are working on practical applications for networking and the internets. Hey, SSH maybe it's time you started watching your back. Check out the full PR after the break. [Thanks Nan]
NASA concludes Gravity Probe B space-time experiment, proves Einstein really was a genius
Well, it looks like Einstein knew what he was talking about, after all. Earlier this week, researchers at NASA and Stanford released the findings from their six-year Gravity Probe B (GP-B) mission, launched to test Einstein's general theory of relativity. To do so, engineers strapped the GP-B satellite with four ultra-precise gyroscopes to measure two pillars of the theory: the geodetic effect (the bending of space and time around a gravitational body) and frame dragging (the extent to which rotating bodies drag space and time with them as they spin on their axes). As they circled the Earth in polar orbit, the GP-B's gyroscopes were pointed squarely at the IM Pegasi guide star, while engineers observed their behavior. In the universe outlined by Einstein's theories, space and time are interwoven to create a four-dimensional web, atop which the Earth and other planetary bodies sit. The Earth's mass, he argued, creates a vortex in this web, implying that all objects orbiting the planet would follow the general curvature of this dimple. If the Earth's gravity had no effect on space and time, then, the position of NASA's gyroscopes would have remained unchanged throughout the orbit. Ultimately, though, researchers noticed small, but quantifiable changes in their spin as they made their way around the globe -- changes that corroborated Einstein's theory. Francis Everitt, a Stanford physicist and principal investigator for the mission, poetically explained the significance of the findings, in a statement: "Imagine the Earth as if it were immersed in honey. As the planet rotated its axis and orbited the Sun, the honey around it would warp and swirl, and it's the same with space and time. GP-B confirmed two of the most profound predictions of Einstein's universe, having far-reaching implications across astrophysics research. Likewise, the decades of technological innovation behind the mission will have a lasting legacy on Earth and in space." The GP-B mission was originally conceived more than 50 years ago, when the technology required to realize the experiment still didn't exist. In fact, the experiment didn't actually get off the ground until 2004, when the satellite was launched into orbit 400 miles above Earth. After spending just one year collecting data (and an impressive five years analyzing the information), NASA has finally confirmed something we always quietly suspected: Einstein was smart. Head past the break to see a more in-depth diagram of how the GP-B gathered its data.
Hanson Robokind puts a familiar Frubber face on robotic research (video)
He did it! As promised way back in 2007, David Hanson has turned his little Astro Boy-like Zeno robot loose upon our delicate planet. But Zeno is just one of four face options available for the Hanson Robokind -- the "almost human robot" considered "the best robot on the market" by its maker. In addition to the fully expressive Zeno, Alice, and Einstein (yes, that Einstein) faces, Hanson is also offering the static-faced Geo with fully functional eyes. Each face features Hanson's Frubber biometric skin that contracts and folds to simulate the action of your own flesh-coated facial muscles to create "millions" of possible expressions. These expressions are assisted by natural eyelid actions covering a pair of independently moving eyes, each equipped with 720p @ 30fps cameras for binocular stereo-vision. Rounding out the specs is a complete suite of sensors, microphones, optional Maxon motors, and an embedded computer with open source OS. Hanson's also working on a complete SDK it hopes to release ASAP. Prices start at $8,500 (model R-20) for a static body with motorized head on up to $14,750 (model R-50) for a maxed-out model with fully expressive head and walking body capable of 33 degrees of freedom. And hey, if you buy five expressive faces you'll get one interchangeable walking body for free. Now, get ready to get up close and personal with the entire Hanson family after the break.
Einstein robot learns to smile, teaches us how to feel
By now, you're no doubt well acquainted with the Albert Hubo Einstein robot developed by the mad scientists at KAIST, but some researchers at the University of California, San Diego has also been working on their own Einstein bot for the past little while, and they've now managed to teach it some new tricks. While the bot has previously been able to display a full range of expressions through some pre-programmed facial movements, it's now able to teach itself how to smile or display other emotions thanks to a new trial-and-error technique dubbed "body babble." That apparently works by comparing Einstein's attempts at an expression with some facial recognition software, which provides Al with some positive feedback each time he manages an actual expression. Did we mention there's a video? Check it out after the break.[Via Switched]Update: The folks at UC, San Diego have kindly pointed us towards a bit more background on their Einstein robot, including a video of its pre-self-teaching days, and a couple of behind-the-scenes pics. Head on past the break for one we like to call "Einstein: Behind the Face."
Einstein's eco-friendly refrigerator concept dusted off, put to good use
Given how large the green bandwagon has become, it's no real shock to see an energy-saving concept from the 1930s being exhumed and investigated further. Scientists at Oxford University have begun to take a closer look at an early invention from the great Albert Einstein in order to hopefully create refrigerators (and appliances in general) that could be used completely without electricity. Back in the day, Sir Albert created a mechanism that had no moving parts and used only pressurized gases to keep things chilly. Once compressors became more efficient in the 50s, however, the idea was tossed aside. Now, the idea obviously has greater appeal, and if things keep humming along nicely, a completed prototype should be erected by the year's end.[Via Physorg]
Mii Spotlight: Mishmash edition
Well, folks, this is likely to be the very last week for Mii Spotlight. It's been fun while it lasted, and this week, we thought we'd check out some of the Miis that have been sent in over time but were never used -- either because there wasn't an appropriate theme edition, or they were received after the appropriate week, and there weren't enough others to revisit the topic.We've loved having this chance to look at your work -- it's made us a little excited for the Check Mii Out channel!
