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Jun 7, 2020

Quantum Dots Shift Sunlight’s Spectrum to Speed Plant Growth

Posted by in categories: information science, quantum physics

In the consumer electronics industry, quantum dots are used to dramatically improve color reproduction in TV displays. That’s because LCD TV displays, the kind in most of our living rooms, require a backlight. This light is typically made up of white, or white-ish LEDs. The LCD filters the white light into red, green, and blue pixels; their combinations create the colors that appear on the screen.

Before quantum dots, filtering meant that much of the light didn’t make it to the screen. Putting a layer of quantum dots between the LEDs and the LCD, however, changes that equation. QD TVs use blue LEDs as the light source, then take advantage of the quantum effect to shift some of that light to tightly constrained red and green wavelengths. Because only this purified light reaches the filters—instead of the full spectrum that makes up white light—far less is blocked and wasted.

It turns out that this same approach to making your TV picture better can make plants grow faster, because plants, like LCD filters, are tuned to certain colors of light.

Jun 7, 2020

Richard Dawkins on scientific truth, outgrowing God and life beyond Earth

Posted by in category: biological

Richard Dawkins is one of the world’s most famous atheists. An evolutionary biology at Oxford and best-selling author of The God Delusion — his new book ‘Outgrowing God — A Beginner’s Guide’ aims to inform young people about religion and atheism. He talks to Krishnan about why he wrote it, his passion for scientific truth and whether he thinks there’s life outside of Earth.

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Jun 7, 2020

Fact About Milky Way

Posted by in category: space

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Jun 7, 2020

Six planet system found in almost perfect orbital harmony

Posted by in categories: media & arts, space

Researchers discovered a star system with six planets which orbits in almost perfect rhythm…dubbed HD 158259 star is orbited by a super-Earth and five mini-Neptunes.

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Jun 7, 2020

Slack’s new integration deal with AWS could also be about tweaking Microsoft

Posted by in category: futurism

Slack and Amazon announced a big integration late yesterday afternoon. As part of the deal, Slack will use Amazon Chime for its call feature, while reiterating its commitment to use AWS as its preferred cloud provider to run its infrastructure. At the same time, Amazon has agreed to offer Slack as an option for all internal communications.

“Some parts of Amazon had licensed Slack before, but this is the first time it will be offered as an option to all employees,” an Amazon spokesperson told TechCrunch.

Make no mistake, this is a big deal as the SaaS communications tool increases its ties with AWS, but this agreement could also be about slighting Microsoft and its rival Teams product by making a deal with a cloud rival. In the past, Slack CEO Stewart Butterfield has had choice words for Microsoft saying the Redmond technology giant sees his company as an “existential threat.”

Jun 7, 2020

ESA moves ahead on low-cost reusable rocket engine

Posted by in category: space travel

ESA’s Prometheus is the precursor of ultra-low-cost rocket propulsion that is flexible enough to fit a fleet of new launch vehicles for any mission and will be potentially reusable.

Jun 7, 2020

Room-temperature superconductors could revolutionize the world’s energy

Posted by in categories: computing, mobile phones

https://youtube.com/watch?v=Yi6q1j_QjSc

· 4 hrs ·

Now that they exist it certainly will change the world.

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Jun 7, 2020

Symmetries and quantum error correction

Posted by in categories: quantum physics, robotics/AI

It’s always exciting when you can bridge two different physical concepts that seem to have nothing in common—and it’s even more thrilling when the results have as broad a range of possible fields of application as from fault-tolerant quantum computation to quantum gravity.

Physicists love to draw connections between distinct ideas, interconnecting concepts and theories to uncover new structure in the landscape of scientific knowledge. Put together information theory with quantum mechanics and you’ve opened a whole new field of quantum information theory. More recently, machine learning tools have been combined with many-body physics to find new ways to identify phases of matter, and ideas from quantum computing were applied to Pozner molecules to obtain new plausible models of how the brain might work.

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Jun 7, 2020

Researchers Create Human Cells with Tunable Optical Properties

Posted by in category: biotech/medical

By drawing inspiration from the structures and functionalities of squid skin cells, a team of researchers designed and engineered human cells that contain stimuli-responsive photonic architectures and, as a consequence, possess the ability to change their appearance and transmission of light.

Jun 7, 2020

Exploring the Evolution of the Human Brain at the Single-cell Level

Posted by in categories: evolution, neuroscience

Oligodendrocytes and astrocytes displayed more differences in the human evolutionary lineage than neurons as compared to similar cells in other primates. Credit: Pavel Odinev/ Skoltech.