How do birds navigate? Quantum entanglement suggests

  • Birds’ navigation using Earth’s very faint magnetic fields suggests an incredible level of sensitivity.
  • There’s reason to think that sensitivity may be based on quantum entanglement in cryptochrome in their eyes.
  • Identifying the role of quantum physics in biology could lead, well, who knows where?

Okay, this is far from confirmed, but it’s pretty radical, and exciting. It’s a possible and plausible answer to a question that’s puzzled biologists ever since the manner in which birds navigate became apparent. The question is: How can birds possibly be able to perceive and follow something as faint as the Earth’s magnetic field? The possible answer? It may be that they perceive it through the interaction of entangled quantum particles in their eyes.

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Aqua-Fi: Underwater WiFi developed using LEDs and lasers

Aquatic internet that sends data through light beams could enable divers to instantly transmit footage from under the sea to the surface.

The internet is an indispensable communication tool, connecting tens of billions of devices worldwide, and yet we struggle to connect to the web from under water. “People from both academia and industry want to monitor and explore underwater environments in detail,” explains the first author, Basem Shihada. Wireless internet under the sea would enable divers to talk without hand signals and send live data to the surface.

Underwater communication is possible with radio, acoustic and visible light signals. However, radio can only carry data over short distances, while acoustic signals support long distances, but with a very limited data rate. Visible light can travel far and carry lots of data, but the narrow light beams require a clear line of sight between the transmitters and receivers.

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Cientistas fazem emaranhado quântico com 15 trilhões de átomos

Feito foi alcançado sob condições inéditas e pode exercer papel importante no avanço de diversas tecnologias

Um grupo de cientistas do Instituto de Ciência e Tecnologia de Barcelona, na Espanha, conseguiu emaranhar 15 trilhões de átomos, um recorde para a física quântica. Agora, o feito deve permitir avanços em diversas tecnologias, da neuroimagiologia – técnicas de imagens cerebrais para estudar o sistema nervoso – à caça por matéria escura universo afora.

Em átomos emaranhados, quando um sofre perturbações, todos os outros são afetados igualmente, mesmo que estejam separados. Por isso, no geral, o emaranhamento acontece a temperaturas extremamente baixas, o que impede a colisão das partículas.

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Coronavirus: 100 cursos online gratuitos de Harvard para fazer durante a quarentena

A Universidade de Harvard liberou mais de 100 cursos online gratuitos e você pode fazer durante a quarentena do Coronavirus

A Universidade de Harvard é uma instituição privada de educação, pesquisa e disseminação do conhecimento, com sede na cidade de Cambridge, nos EUA. Seu nome é sinônimo de qualidade e respeito no meio acadêmico, sendo considerada uma das melhores universidades do mundo. Você irá dar um UP na sua carreira, mesmo com o Coronavirus.

E liberou mais de 100 cursos gratuitos em sua plataforma de ensino online. Se você quer impulsionar sua carreira e carimbar mais conhecimentos no currículo, aproveite esta oportunidade.

Com a pandemia do Coronavirus no Brasil, a metodologia de ensino a distância se torna a única forma segura de continuar estudando, além de contar com toda a flexibilidade em relação ao tempo diário de estudo.

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  • The social media platform features a Facebook-style newsfeed, but content is prioritized by recency instead of engagement.
  • Wikipedia co-founder Jimmy Wales said he was inspired to create WT.Social because advertising had allowed “low-quality” content to dominate Facebook and Twitter.
  • Facebook and Twitter have recently adopted opposing strategies in how to handle political advertising.

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47% of jobs will vanish in the next 25 years, say Oxford University researchers

 

The Trump campaign ran on bringing jobs back to American shores, although mechanization has been the biggest reason for manufacturing jobs’ disappearance. Similar losses have led to populist movements in several other countries. But instead of a pro-job growth future, economists across the board predict further losses as AI, robotics, and other technologies continue to be ushered in. What is up for debate is how quickly this is likely to occur.

Now, an expert at the Wharton School of Business at the University of Pennsylvania is ringing the alarm bells. According to Art Bilger, venture capitalist and board member at the business school, all the developed nations on earth will see job loss rates of up to 47% within the next 25 years, according to a recent Oxford study. “No government is prepared,” The Economist reports. These include blue and white collar jobs. So far, the loss has been restricted to the blue collar variety, particularly in manufacturing.

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