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Latest from the Blog
SiC/SiC Composites, Pulsed Lasers, and Water…
Schematic of annulus-conical water jet-assisted laser machining. Fig 1 Topics: Applied Physics, Composite Materials, Fluid Mechanics, Lasers, Materials Science, Nanoengineering Abstract When processing SiC/SiC composites using nanosecond-pulsed lasers, thermal effects such as molten deposition and heat-affected zones (HAZs) will occur. In this study, an annulus-conical water jet (ACWJ) was introduced to assist nanosecond laser machining…
Rogue Planet…
NASA’s Goddard Space Flight Center Astronomers just measured the mass of a free-floating planet without a star for the first time Topics: Astronomy, Astrophysics, Exoplanets, NASA When we imagine a planet, we think of one like ours, orbiting a star. But some have a far lonelier existence, drifting through interstellar space without a sun to…
Quantum Cryptography…
Credit: VectorMine/Shutterstock Topics: Computer Science, Cryptography, Cybersecurity, NIST, Quantum Computer, Quantum Mechanics Note: As a Communications-Computer Systems Officer in the US Air Force, I was once responsible for Technical Control, Computer Maintenance, and Crypto-Teletype (not that anyone uses a teletype anymore – I hope not!). I also beta-tested DARPANET at Bergstrom Air Force Base, which…
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Physics and Nano 