Physics

MIT has been named the top university in the world in the latest QS World University Rankings, reports Nick Morrison for Forbes. This is the fifth consecutive year that MIT has earned the number one spot in the QS rankings. 

ABC News reporter Gillian Mohney writes that Prof. Lydia Bourouiba has captured footage of a person sneezing, showing how far sneeze droplets can travel. Bourouiba found that “large droplets tended to land within 1 to 2 meters (about 3 to 6 feet) and that small droplets could get as far as 6 to 8 meters away (19 to 26 feet).”

A team of scientists, including MIT researchers, has analyzed the measurements made by the IceCube Neutrino Observatory and found no evidence of the sterile neutrino, a new type of neutrino, reports Brendan Cole for Wired. 

Science reporter Adrian Cho profiles Prof. Emeritus Rainer Weiss, exploring everything from his decades-long dedication to the search for gravitational waves to his reputation as a mentor. Prof. Emeritus Robert Birgeneau notes that Weiss was respected for “his passion and his courage in going after really important physics.”

Boston Globe reporter Cristela Guerra writes that Profs. Janet Conrad and Lindley Winslow helped ensure the science in the new “Ghostbusters” was as accurate as possible. “I am very fond of the original ‘Ghostbusters’,” says Conrad. “I have even used ‘Ghostbusters’ as a theme for my colloquium on neutrino physics, since neutrinos are often called the ghost particle.”

Indira Lackshmanan of WBUR’s Radio Boston speaks to Profs. Joe Formaggio and David Kaiser about their recent quantum theory discovery involving neutrinos. “Do they move through matter without having a definite identity? Our finding is that really they do,” says Kaiser.

Wired reporter Joshua Sokol speaks with Profs. Janet Conrad and Lindley Winslow about how they helped the Ghostbusters team infuse the film with science, and how they hope the film’s portrayal of female scientists will inspire viewers. Winslow says the movie is important “because middle school girls will watch it. It will put that seed in their head.”

George Johnson writes for The New York Times about a symposium on the human consciousness where Prof. Max Tegmark discussed the state of perceptronium. “It predicts, with dense mathematics, that devices as simple as a thermostat or a photoelectric diode might have glimmers of consciousness, a subjective self,” explains Johnson.  

Prof. Nergis Mavalvala speaks with Scientific American about black holes, gravitational waves, and attracting more women and minorities to STEM fields. She explains that studying the building blocks of the universe is important for understanding the “big questions: What are we made of? Where do we come from?”

Ryan Mandelbaum of Popular Science speaks with David Shoemaker, who leads MIT’s LIGO Lab and Advanced LIGO, about the second successful detection of gravitational waves. "It’s wonderful," says Shoemaker. "It’s so different from the first one ... but its importance is no less."

Boston Globe reporter Eric Moskowitz writes that scientists have been able to detect gravitational waves for the second time. “It’s a wondrous thing,” said David Shoemaker, who leads the MIT lab that helped build the detectors. “Three months apart, 1.4 billion years ago, these two events happened at two different places in the sky.”

Scientists have observed a second pair of black holes colliding using the twin detectors of the Laser Interferometer Gravitational Wave Observatory (LIGO), reports Dennis Overbye for The New York Times. Overbye writes that LIGO provides “a way of hearing the universe instead of just looking at it.”

For the second time, scientists have detected gravitational waves produced by the collision of two black holes, reports Irene Klotz for Reuters. “We are starting to get a glimpse of the kind of new astrophysical information that can only come from gravitational-wave detectors,” says David Shoemaker, who leads Advanced LIGO. 

In an article for New Scientist, Lisa Grossman writes that for the second time the Laser Interferometer Gravitational Wave Observatory (LIGO) has detected gravitational waves. “This gives us confidence,” says MIT research scientist Salvatore Vitale. “It was not just a lucky accident. Seeing a second one tells us clearly that there is a population of black holes there.”

Prof. Rainer Weiss speaks with Clara Moskowitz of Scientific American about why he is excited by the public’s reaction to the successful detection of gravitational waves. Weiss says that for him one of the most gratifying things is if he and his colleagues can help “make the argument that science is something everybody gets benefit from.”