RSS #Engineering latest news

  • Atomic beams shoot straighter via cascading silicon peashooters April 23, 2019
    Atomic beams conjure fantasies of gigantic Space Force canons. But there are real tiny atomic beams that shoot out of newly engineered collimators, a kind of tiny silicon peashooter, that could land in handheld devices. The beams streaming out of them create precise inertia much better than a gyroscope's that could help spacecraft navigate the […]
  • Artificial mother-of-pearl created using bacteria April 23, 2019
    A biologist invented an inexpensive and environmentally friendly method for making artificial nacre using an innovative component: bacteria. The artificial nacre is made of biologically produced materials and has the toughness of natural nacre, while also being stiff and, surprisingly, bendable. The method used to create the novel material could lead to new applications in […]
  • Defying the laws of physics? Engineers demonstrate bubbles of sand April 22, 2019
    A recent discovery explains a new family of gravitational instabilities in granular particles of different densities that are driven by a gas-channeling mechanism not seen in fluids. The team observed an unexpected Rayleigh-Taylor (R-T)-like instability in which lighter grains rise through heavier grains in the form of 'fingers' and ''granular bubbles, similar to the bubbles […]
  • Snake-inspired robot slithers even better than predecessor April 22, 2019
    Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new and improved snake-inspired soft robot that is faster and more precise than its predecessor.
  • Photonics: The curious case of the disappearing cylinders April 22, 2019
    A pair of researchers describes a way of making a submicron-sized cylinder disappear without using any specialized coating. Their findings could enable invisibility of natural materials at optical frequency and eventually lead to a simpler way of enhancing optoelectronic devices, including sensing and communication technologies.
  • Engineering researcher uses network science to understand how materials work April 18, 2019
    Using network science -- part of a larger mathematical field called graph theory -- a professor mapped long range atomic forces onto an incredibly complex graph to simulate macroscopic material behavior.
  • Antimicrobial paints have a blind spot April 18, 2019
    Researchers tested bacteria commonly found inside homes on samples of drywall coated with antimicrobial, synthetic latex paints. Within 24 hours, all bacteria died except for Bacillus timonensis, a spore-forming bacterium.
  • Making digital tissue imaging better April 18, 2019
    A low-tech problem troubles the high-tech world of digital pathology imaging: There are no reliable standards for the quality of digitized tissue slides comprising the source material for computers reading and analyzing vast numbers of images. Poor-quality slides get mixed in with accurate slides, potentially confusing a computer program trying to learn what a cancerous […]
  • Using the physics of airflows to locate gaseous leaks more quickly in complex scenarios April 18, 2019
    Engineers are developing a smart robotic system for sniffing out pollution hotspots and sources of toxic leaks. Their approach enables a robot to incorporate calculations made on the fly to account for the complex airflows of confined spaces rather than simply 'following its nose.'
  • Exploring what happens inside fires and explosions April 18, 2019
    The inside of a fire might be the last place one would explore, but a new method to do just that could lead to advances in fighting fires, creating cleaner engines and even space travel.