New options in harvesting light.
Significant new potentials for light harvesting through narrowing the bandgap of titania and graphene quantum dots have been uncovered by scientists.
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Is search of the sound of silence.
To a physicist, perfect quiet is the ultimate noise. Silence your cellphone, still your thoughts, and muffle every kind of vibration, and you would still be left with quantum noise. It represents an indeterminacy deep within nature, bursts of static and inexplicable motions that cannot be gotten rid of, or made sense of. It seems devoid of meaning.
Considering how pervasive this noise is, you might presume that physicists would have a good explanation for it. But it remains one of the great unsolved problems in science. Quantum theory is silent not just on where the noise comes from, but on how exactly it enters the world. The theory’s defining equation, the Schrödinger equation, is completely deterministic. There is no noise in it at all. To explain why we observe quantum particles to be noisy, we need some additional principle.
For physicists in the Niels Bohr tradition, the act of observation itself is decisive. The Schrödinger equation defines a menu of possibilities for what a particle could do, but only when measured does the particle actually do anything, choosing at random from the menu. Identical particles will make different choices, causing the outcomes of fundamental processes to vary in an uncontrollable way. On Bohr’s view, quantum noise cannot be explained further. It is what physicist John Wheeler called “an elementary act of creation,” with no antecedents. Genesis was not a singular event in the distant past, but an ongoing process that we bring about. We create the world by observing it.
DARPA’s self-repairing security system’s challenge.
In a few weeks, a town better known for events like the World Series of Poker will host the World Series of Hacking.
The finals of the Cyber Grand Challenge, which will be held by the Defense Advanced Research Projects Agency at the DEFCON security conference in Las Vegas next month, aim to see if a high performance computer system can discover and patch security systems automatically — without human intervention.
If you are interested in the work of SENS and how Dr Haroldo Silva and his team are looking for ways to treat cancer why not come along and join them?
There is going to be a SENS AMA on Reddit with Aubrey de Grey and OncoSENS researcher Haroldo Silva. Ask them anything about SENS and the long term goal of developing universal cancer therapies.
FUTUROLOGY JULY 19TH 1 pm EST/10 am PST/6 pm BST.
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Sad for Russia.
President Vladimir Putin and other Russian officials dream of a technological leap that could immediately close the gap between Russia and more advanced economies, as Sputnik did for the Soviet Union. The hyperloop, a kind of train in a tube that can reach speeds of up to 700 mph, fits that dream, and a well-connected Russian businessman has invested in it — only to see the project become embroiled in a lawsuit involving a Silicon Valley startup’s founders and claims of financial mismanagement.
Elon Musk, Tesla’s chief executive, proposed the hyperloop four years ago. This “fifth mode of transport” would involve a system of practically airless tubes through which magnetically levitated pods could carry passengers and cargo. Musk has not set up a company to bring the project to reality, but others have. For example, Hyperloop Transportation Technologies, wants to build a system in Slovakia. Another, Hyperloop One, offered a public demonstration of some elements of its technology in May.
Hyperloop One has seemed the most advanced project, and Russian investors showed an interest from the start. The state-owned Russian Direct Investment Fund took a small stake in the company, but Ziyavudin Magomedov, head of Summa Capital, was the most enthusiastic Russian investor, putting up money for both of the company’s funding rounds.
