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May 28, 2023

Chip-based quantum key distribution achieves higher transmission speeds

Posted by in categories: computing, quantum physics, security

Researchers have developed a quantum key distribution (QKD) system based on integrated photonics that can transmit secure keys at unprecedented speeds. The proof-of-principle experiments represent an important step toward real-world application of this highly secure communication method.

QKD is a well-established method of providing secret keys for secure communication between distant parties. By using the quantum properties of light to generate secure random keys for encrypting and decrypting data, its security is based on the laws of physics, rather than computational complexity like today’s communication protocols.

“A key goal for QKD technology is the ability to simply integrate it into a real-world communications network,” said research team member Rebecka Sax from the University of Geneva in Switzerland. “An important and necessary step toward this goal is the use of integrated photonics, which allows to be manufactured using the same semiconductor technology used to make silicon computer chips.”

May 28, 2023

Plants perform quantum mechanics feats that scientists can only do at ultra-cold temperatures

Posted by in categories: energy, quantum physics

Plants pass energy along paths similar to those of a Bose-Einstein condensate, showing quantum properties at macroscopic scales.

May 28, 2023

Quantum Chemistry Happening Inside Your Eyes Protects Against Vision Loss

Posted by in categories: chemistry, quantum physics

Every color, every flash, every sunray exacts a toll on the light-sensitive tissues at the back of our eyes, producing toxic materials that risk damaging the very cells that allow us to see.

Thankfully, the pigment responsible for darkening our hair, skin, and eyes moonlights as a clean-up crew, mopping up one such dangerous compound before it accumulates into damaging clumps.

An investigation by researchers from the University of Tübingen in Germany and Yale University has revealed the removal process is somewhat unusual as far as biochemistry goes, relying upon a strange quirk of quantum-like behavior.

May 28, 2023

Commercializing quantum computers step by step

Posted by in categories: computing, quantum physics

Alongside developing a quantum computer, one group of scientists is selling its components to other researchers.

May 28, 2023

Radical new “Flying-V” plane aims to transform flight

Posted by in categories: futurism, transportation

The Flying-V airplane doesn’t look like anything you’ll find at today’s airports, but it could be the future of aviation.

May 28, 2023

This New Hypersonic ‘Space Plane’ Can Get You From New York to London in One Hour

Posted by in category: space travel

On Tuesday, the CEO of the UK Space Agency Graham Turnock announced the UK would be working more closely with Australia in a “world-first Space Bridge” agreement which will focus on delivering a plane—or rocket, really—to shuttle passengers from continent-to-continent in just four hours. While flights from London to the Big Apple will reportedly take a skerrick over 60 minutes.

It’s all courtesy of a new hypersonic engine SABRE (Synergetic Air-Breathing Rocket Engine)—which the scientists at Reaction Engines are currently developing. Fueled by a combination of hydrogen and oxygen, SABRE is capable of powering a plane to Mach 5.4 (4,000 mph) for speedy commercial travel—that’s around five times the speed of sound—or Mach 25 (19,000 mph) when soaring in space. It’s supposedly greener and cheaper than current air travel, too.

May 28, 2023

Blood Test #3 in 2023: Supplements, Diet

Posted by in categories: biotech/medical, genetics

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May 28, 2023

Solving problems is better than fearmongering

Posted by in categories: business, cybercrime/malcode

W elcome to the TechCrunch Exchange, a weekly startups-and-markets newsletter. It’s inspired by the daily TechCrunch+ column where it gets its name. Want it in your inbox every Saturday? Sign up here.

From cybersecurity to SaaS for restaurants, the key to running a successful business is selling a product that solves your clients’ real problems. — Anna

2022 in cybersecurity.

May 28, 2023

AI is here to stay; it’s time to update your HR policies

Posted by in category: robotics/AI

The widespread use of advanced artificial intelligence tools like ChatGPT means the rapidly developing technology is being used in workplaces across the country whether employers are aware of it or not.

So, for companies that have not yet developed ground rules for AI use, you’re being put on alert: It’s time to update your employee handbook, an human resources expert says.

Jennifer Morehead, owner and CEO of Flex HR, which handles outsourced human resources services for major firms like Harley-Davidson and Kimberly Clark, says there are an array of issues AI firms need to consider now that the tools are becoming increasingly accessible in the workplace.

May 28, 2023

A potential cure for diabetes found in human stomach cells

Posted by in category: biotech/medical

The ability to acquire gut stem cells via biopsy and have a significant proliferative capacity in culture make them an invaluable resource for autologous cell treatments. In the mouse gut, insulin-producing cells can be produced. Still, human gut tissues have not been able to produce an abundance or durability of insulin-secreting cells to assess their potential as a cell treatment for diabetes.

In a new study, scientists from Weill Cornell Medicine showed that stem cells from human stomach can be converted into insulin-secreting cells. Scientists demonstrated that they could obtain the stem cells from the human stomach and reprogram them directly—with strikingly high efficiency—into cells that closely resemble pancreatic insulin-secreting cells known as beta cells.

In experiments on a mouse model, this approach reversed disease signs. According to scientists, the study offers a promising approach, based on patient’s cells, for type 1 diabetes and severe type 2 diabetes.

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