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Bill Fulkerson

Physicists offer a new 'spin' on memory - 0 views

phys.org/...2020-05-physicists-memory.html

physics memory spin

shared by Bill Fulkerson on 18 May 20 - No Cached
  • Bill Fulkerson on 18 May 20
     
    Unlike conventional micro-transistors, magnetic tunnel junctions don't use the electrical charge of electrons to store information, but take advantage of a quantum-mechanical property that electrons have, which is referred to as "spin." Known as spintronics, computing technology based on magnetic tunnel junctions is still very much in the experimental phase, and applications are extremely limited. For example, the technology is used in aircraft and slot machines to protect stored data from sudden power outages. This is possible because magnetic tunnel junctions process and store information by switching the orientation of nano-scale magnets instead of moving electrons around as regular transistors do.
Steve Bosserman

The innovation turning desert sand into farmland - 0 views

www.bbc.com/...business-43962688

agriculture

shared by Steve Bosserman on 06 May 18 - No Cached
  • Faisal Mohammed Al Shimmari farms in some of the most extreme conditions in the world, at Al Ain, an oasis in the United Arab Emirates desert, where temperatures can reach 50C. "It's expensive as we have to buy water regularly to irrigate these plants," he says
  • Norwegian scientist Kristian Morten Olesen has patented a process to mix nano-particles of clay with water and bind them to sand particles to condition desert soil - he has been working on Liquid Nanoclay (LNC) since 2005."The treatment gives sand particles a clay coating which completely changes their physical properties and allows them to bind with water," he says.
  • "I am amazed to see the success of LNC," says Faisal. "It just saved consumption of water by more than 50%, it means now I can double the green cover with the same water."
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