Mechanical engineering

Researchers at MIT have discovered that “light in the visible spectrum is enough to knock water molecules loose at the surface where it meets air and send them floating away,” reports Michael Franco for New Atlas. “While the distinction between light-caused evaporation and heat-caused evaporation might not seem like a big one, the researchers say it could not only have a big impact on the way future evaporative projects are executed, but that it could also explain a long-standing discrepancy involving clouds,” writes Franco.

Interesting Engineering reporter Rizwan Choudhury spotlights a new study by MIT researchers that finds light can cause evaporation of water from a surface without the need for heat. The photomolecular effect “presents exciting practical possibilities,” writes Choudhury. “Solar desalination systems and industrial drying processes are prime candidates for harnessing this effect. Since drying consumes significant industrial energy, optimizing this process using light holds immense promise.”

MIT researchers have developed a new type of spring-like device that uses a flexible element to help power biohybrid robots, reports Brian Heater for TechCrunch. “The muscle fiber/flexure system can be applied to various kinds of robots in different sizes,” Heater writes, adding that the researchers are, “focused on creating extremely small robots that could one day operate inside the body to perform minimally invasive procedures.”

Prof. Kripa Varanasi co-founded Alsym Energy, a startup “developing rechargeable batteries that won’t be based on lithium or cobalt,” reports Hiawatha Bray for The Boston Globe. “The founders said they expect to build batteries that match the performance of today’s lithium-ion cells but at about half the cost,” writes Bray.

NASA astronaut Christopher Williams PhD '12 shares his excitement over the upcoming solar eclipse with Space.com Elizabeth Howell, noting he is most excited that the celestial event will provide unique views of the sun’s outer atmosphere. Williams previously conducted radio astronomy research and helped build the Murchison Widefield Array in Australia during his time at MIT. "It was an incredible experience, because I got to both work on the cosmology and the science behind that,” recalls Williams. 

Prof. Emeritus Donald Sadoway co-founded Boston Metal, an MIT startup that has developed a carbon-free steel manufacturing process, reports Amy Feldman for Forbes. “Boston Metal’s process – which uses an electricity conducting, molten-metal proof anode to liquify iron ore, separating the pure metal without harmful byproducts – allows factories to create carbon-free steel as long as they use a clean energy source, such as hydroelectric power,” explains Feldman. “It also can create steel from lower-grade ores rather than relying on scarce high-grade ones. That’s an important advantage in terms of both cost and availability compared to other methods of making green steel, according to the company.”

TechCrunch reporter Haje Jan Kamps spotlights AgZen, an MIT startup that has developed a new tool that optimizes the use of pesticides to avoid over application. “The real winner in all of this may prove to be public health and the environment,” writes Jan Kamps. “By reducing foliar pesticide usage by 30% to 50%, AgZen’s technology might help mitigate [environmental] impacts, aligning with the critical need for improved spray efficiency highlighted in recent reports.”

Researchers at MIT and elsewhere have developed a machine-learning model that can identify which drugs should not be taken together, reports Politico. “The researchers built a model to measure how intestinal tissue absorbed certain commonly used drugs,” they write. “They then trained a machine-learning algorithm based on their new data and existing drug databases, teaching the new algorithm to predict which drugs would interact with which transporter proteins.”

Omar Abudayyeh '12, PhD '18 and Jonathan Gootenberg '13 speak with Robert Weisman at The Boston Globe about their deep-rooted working relationship, which began as undergraduates at MIT and has gone on to include joint appointments at the McGovern and Broad Institutes and multiple startups. “Science is difficult, and it’s great to have someone to do it with,” said Gootenberg. “You got to work with people you enjoy hanging out with.”
 

Prof. Xuanhe Zhao speaks with Amerigo Allegretto of AuntMinnie.com about his work developing a new ultrasound sticker that can measure the stiffness of internal organs and could one day be used for early detection and diagnosis of disease. “Due to the huge potential of measuring the rigidity of deep internal organs, we believe we can use this to monitor organ health,” Zhao explains.

Prof. Nicholas Makris speaks with USA Today reporter Phaedra Trethan about the oceanic challenges that may impact the search for Amelia Earhart and Fred Noonan’s plane. The plane "is lost in the darkens of the ocean,” says Makris. “The sound (from sonar equipment) takes the darkness out, but it’s so far down that, from the surface, it can look like a speck.”

BostInno reporter Isabel Tehan spotlights how MIT researchers have developed a model to predict how different shoes will impact different individual runners. “The model takes into account runner height, weight and other body dimensions, and the properties of the shoes — including stiffness or springiness — and can predict how that individual would run in a particular pair of shoes,” writes Tehan. “Ideally, we could make a shoe that's right for you and the way you run,” explains postdoc Sarah Fay.

Writing for The Boston Globe, Prof. Gang Chen emphasizes the harm caused by the “China Initiative.” Chen notes that “some initiatives by the government, such as the China Initiative and the National Institutes of Health’s investigation into academics’ collaborations with China, weaken rather than strengthen US national security. American scientific prowess has been built on the United States’ ability to attract the best and the brightest minds from around the world.” He adds that the China Initiative has been deterring scientists from pursuing their research and careers in the United States.”

Scientific American reporter Payal Dhar spotlights how MIT engineers developed a beating, biorobotic replica of the human heart that could be used to “simulate the workings of both a healthy organ and a diseased one.” The replica, "which pumps a clear fluid instead of blood, is hooked up to instruments that measure blood flow, blood pressure, and more," writes Dhar. "It’s also customizable: the user can change the heart rate, blood pressure and other parameters, then watch how these changes affect the heart’s function in real time.”

Smithsonian Magazine reporter Sarah Kuta spotlights MIT researchers and their work in developing an ingestible vibrating pill that simulates the feeling of being full. The device “could someday offer an obesity treatment that doesn’t rely on standard medications or surgery,” writes Kuta.