Abstract: The electron gun, as a critical device for emitting high-speed electrons, determines the electron beam current and quality in electron beam additive manufacturing (EBAM). In this article, a ...

Medical, dental and master's students in biomedical sciences frequently take standardized, multiple-choice question tests to assess their foundational knowledge. Reasons for its widespread use include ...

The method will be announced at the Electric Power Research Institute, March 10-11A thousand times faster than conventional testing, an ion beam ...

A cluster of recent theoretical papers has laid out mathematical frameworks for propelling spacecraft at speeds ranging from ...

Vagins is an experimental physicist, but his work relies on a vast complex machine underpinned by an orchestra of subsystems – mechanical, electronic, computational and human – each playing precisely ...

Boston’s new mid-rise Josiah Quincy Upper School features a custom mural adorning its entrance plaza. Situated above the school’s light-filled cafeteria, the ...

The world's shortest IQ test is just three questions long and can tell if you're smarter than 80 percent of the population. Called the Cognitive Reflection Test (CRT), it has been around since 2005 ...

Engineers working with the Pentagon’s advanced research arm and a Seattle startup say they are closing in on “infinite flight” for drones by zapping them with high powered lasers from the ground.

Upgrade your eyewear with glasses that can function as cameras, headphones, and AR displays. We've tested all the major ...

Oak Ridge National Laboratory (ORNL) has announced a partnership with Japan’s Kyoto Fusioneering (KF) to develop technology for a fusion breeding blanket test facility. ORNL said the partnership will ...

Participants in this year's field test of the 2030 census may be asked about their U.S. citizenship status, the Trump administration revealed Thursday. The proposal, which is part of a regulatory ...

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