“Buying into a smart home ecosystem is sort of like selecting a holy grail in the Temple of the Sun. Choose poorly, and everything crumbles.”
In a new study, researchers detail the culturing and transfecting of cells with genetic material on an array of carbon nanotubes, which appears to overcome the limitations of other gene editing technologies.
Gene editing techniques hold great promise. They allow targeted and specific edits of genes, and have nearly limitless possibilities in the field of medicine.
Which is not to say that they are perfect. These techniques still have a range of limitations, from precision to toxicity. But a new study shows that can be changed.
Continue reading “Gene Editing Made Easier, Thanks to Carbon Nanotubes” »
Ralph Merkle, Robert Freitas and others have a theoretical design for a molecular mechanical computer that would be 100 billion times more energy efficient than the most energy efficient conventional green supercomputer. Removing the need for gears, clutches, switches, springs makes the design easier to build.
Existing designs for mechanical computing can be vastly improved upon in terms of the number of parts required to implement a complete computational system. Only two types of parts are required: Links, and rotary joints. Links are simply stiff, beam-like structures. Rotary joints are joints that allow rotational movement in a single plane.
Simple logic and conditional routing can be accomplished using only links and rotary joints, which are solidly connected at all times. No gears, clutches, switches, springs, or any other mechanisms are required. An actual system does not require linear slides.
Air Force Research Laboratory is working on key technologies in hypersonic air vehicles, directed-energy weapons and autonomy, or human-machine teaming, that will be “game-changers”
Air Force Research Laboratory scientists and engineers have developed an unarmed “cruise missile-like vehicle” that reached five times the speed of sound in tests, and have explored pairing drones with combat fighters in latest realm of technological advances.
Pentagon futurists envision a third-offset strategy to leapfrog U.S. technological capabilities to stay ahead of Russia and China.
Who says playing around is a waste of time?
Researchers at the University of California at Irvine (UCI) said that’s exactly what they were doing when they discovered how to increase the tensile strength of nanowires that could be used to make lithium-ion batteries last virtually forever.
Researchers have pursued using nanowires in batteries for years because the filaments, thousands of times thinner than a human hair, are highly conductive and have a large surface area for the storage and transfer of electrons.
Continue reading “Scientists can now make lithium-ion batteries last a lifetime” »
“It’s pure magic,” Eatsa promises.
At San Francisco’s first fully automated restaurant, meals appear in little glass cubbies, just 90 seconds after customers order and pay on wall-mounted iPads. It’s a human-less experience – no waitstaff, no cashier, no one to get your order wrong and no one to tip.
It’s also a parlor trick.
Continue reading “San Francisco’s first automated restaurant is ‘pure magic’” »
(Phys.org)—For the past 17 years, spiro-OMeTAD, has been keeping a secret. Despite intense research efforts, its performance as the most commonly used hole-transporting material in perovskite and dye-sensitized solar cells has remained stagnant, creating a major bottleneck for improving solar cell efficiency. Thinking that the material has given all it has to offer, many researchers have begun investigating alternative materials to replace spiro-OMeTAD in future solar cells.
But in a new study published in Science Advances, Dong Shi et al. have taken a closer look at spiro-OMeTAD and found that it still has a great deal of untapped potential. For the first time, they have grown single crystals of the pure material, and in doing so, they have made the surprising discovery that spiro-OMeTAD’s single-crystal structure has a hole mobility that is three orders of magnitude greater than that of its thin-film form (which is currently used in solar cells).
“This paper reports a major breakthrough for the fields of perovskite and solid-state dye-sensitized solar cells by finally clarifying the potential performance of the material and showing that improving the crystallinity of the hole transport layer is the key strategy for further breakthroughs in device engineering of these solar cells,” Osman Bakr, a professor of engineering at King Abdullah University of Science and Technology (KAUST) in Saudi Arabia and leader of the study, told Phys.org.
Continue reading “Solar cell mystery solved, expected to greatly increase efficiency” »
