Physics World reporter Michael Banks chronicles the life and work of MIT Prof. Emeritus and gravitational wave pioneer Rainer Weiss. “Weiss came up with the idea of detecting gravitational waves by measuring changes in distance as tiny as 10–18 m via an interferometer several kilometers long,” writes Banks. “His proposal eventually led to the formation of the twin Laser Interferometer Gravitational-Wave Observatory (LIGO), which first detected such waves in 2015.”
Professor Emeritus Rainer Weiss, a Nobel Prize-winning physicist who was honored for his work "developing a device that uses gravity to detect intergalactic events, like black holes colliding, and who helped confirm two central hypotheses about the universe,” has died at 92, reports Dylan Loeb McClain for The New York Times. In an earlier interview, Weiss reflected upon the wonder unlocked by LIGO: “With gravitational waves, you have a new way to look at [the] universe. You can see all that nature has in store. So now comes the question: What do you want to find out?”
WBUR reporter Rachell Sanchez-Smith spotlights two health tech devices being developed by Prof. Yoel Fink and Prof. Canan Dağdeviren, respectively, that aim to “give the wearers — and their doctors — a clearer picture of their overall health.” Fink has created “a thread capable of storing data, running artificial intelligence algorithms, sensing motion and sound, and communication through Bluetooth,” while Dağdeviren’s wearable ultrasound scanner can be used to make breast cancer screening “more comfortable and more accurate,” explains Sanchez-Smith.
Researchers at MIT have developed a new tool, called Meschers, that allows users to create detailed computer representations of mathematically impossible objects, reports Gayoung Lee for Gizmodo. “In addition to creating aesthetically quirky objects,” Lee explains, “Meschers could eventually assist in research across geometry, thermodynamics, and even art and architecture."
A new study by MIT researchers has “identified the parts of the brain’s visual cortex that respond more when we look at things (rigid objects like a stone skipping or a bouncing ball) vs stuff (liquids or something more granular like sand). Understanding this distinction may help our brains better plan how to interact with various materials,” explains Lauren Baisas for Popular Science. “Understanding this distinction may help our brains better plan how to interact with various materials,” explains Baisas.
Researchers at MIT have found a new “iteration of a foundational quantum experiment,” reports Gayoung Lee for Gizmodo. They “successfully replicated the double-slit experiment on the atomic scale, allowing for an unprecedented level of empirical precision,” writes Lee. “By using supercold atoms as ‘slits’ for light to pass through, the team confirmed that the wave-particle duality of light—with all its paradoxical properties—holds up even on the most fundamental quantum scales.”
Physicists at MIT have provided new insights into the world of quantum mechanics after successfully performing the double-slit experiment with “incredible atomic precision,” reports Mrigakshi Dixit for Interesting Engineering. The researchers “discovered a clear relationship: the more precisely they determined a photon’s path (confirming its particle-like behavior), the more the wave-like interference pattern faded,” explains Dixit. “The researchers observed that the wave interference pattern weakened any time an atom was nudged by a photon passing by. This confirmed that getting information about the photon’s route automatically erased its wave-like properties.”
Researchers at MIT have uncovered a variety of obstacles of AI in software development, reports Rob Wile for NBC News. They have found “the main obstacles come when AI programs are asked to develop code at scale, or with more complex logic,” writes Wile.
Researchers at MIT have created “a resin that turns into two different kinds of solids, depending on the type of light that shines on it,” a development that could “significantly speed up the 3D-printing process,” reports Andrew Corselli for Tech Briefs. Graduate student Nicholas Diaco explains that this new method “allows us in a single 3D print, to create structures that either dissolve or don't dissolve away. That lets us automate the most difficult and most expensive step of 3D printing, which is removing support materials after the printing is done.”
Ten years after scientists detected gravitational waves for the first time using the LIGO detectors, Rachel Feltman of Scientific American's “Science Quickly” podcast visits the MIT LIGO Lab to speak with Prof. Matt Evans about the future of gravitational wave research and why Cosmic Explorer, the next generation gravitational wave observatory, will help unearth secrets of the early universe. “We get to look back towards the beginning of the universe, in some sense, with gravitational waves as we look at these sources that are farther and farther away,” says Evans. “With Cosmic Explorer we’ll have not just one or two but hundreds of thousands of sources from the distant universe. So it’s a really exciting way to explore the universe as a whole by looking at this stellar graveyard.”
Researchers at MIT have developed “a new imaging technique that could allow quality control robots in warehouses to peer into closed boxes,” reports Chris Young for Interesting Engineering. “Using this new technology, robots could peer into a cardboard shipping box and see that the handle of a mug is broken, for example,” explains Young. “This new method could revolutionize warehouse quality control and streamline the shipping and delivery process.”
Prof. Yet-Ming Chiang and his colleagues have developed a sodium-air fuel cell that “packs three to four times more energy per pound than common lithium-ion batteries,” reports Aaron Pressman for The Boston Globe, which could serve as “a potentially groundbreaking clean power source for airplanes.” Pressman adds that: “Ultimately, a sodium-air fuel cell could power a regional jet carrying 50 to 100 passengers on flights as long as 300 miles.”
New York Post reporter Marissa Matozzo cracks into a new study by MIT researchers that uncovers the best way to keep eggs from cracking. The researchers found that eggs dropped sideways are less likely to break than those dropped vertically. “It turns out the sides can take more of a beating than their pointy or rounded ends, and that could mean a lot for proper storage,” says Matozzo.
Prof. Carlos Portela and postdoc James Surjadi speaks with TechBriefs reporter Andrew Corselli about their work developing a new metamaterial that is both strong and stretchy. “We have demonstrated the concept with these polymeric materials and, from here, we see a couple of opportunities,” Surjadi explains. “One is extending this to more brittle material systems. The real dream will be to be able to do this with glasses, other ceramics, or even metals — things that normally we don't expect to deform a lot before they break. Brittle materials are the perfect candidates for us to try to make into woven-type architectures.”
Forbes reporter Amanda Kooser spotlights a new study by MIT scientists that has found eggs are less likely to crack when dropped on their side. “The researchers put eggs through their paces in two different tests,” explains Kooser. “One was a static compression test that applied increasing force to the eggs. The other was a drop test.”