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Jun 14, 2022

Found: A Quadrillion Ways for String Theory to Make Our Universe

Posted by in categories: mathematics, particle physics, quantum physics

Circa 2019


According to string theory, all particles and fundamental forces arise from the vibrational states of tiny strings. For mathematical consistency, these strings vibrate in 10-dimensional spacetime. And for consistency with our familiar everyday experience of the universe, with three spatial dimensions and the dimension of time, the additional six dimensions are “compactified” so as to be undetectable.

Different compactifications lead to different solutions. In string theory, a “solution” implies a vacuum of spacetime that is governed by Einstein’s theory of gravity coupled to a quantum field theory. Each solution describes a unique universe, with its own set of particles, fundamental forces and other such defining properties.

Continue reading “Found: A Quadrillion Ways for String Theory to Make Our Universe” »

Jun 14, 2022

Engineers build LEGO-like artificial intelligence chip

Posted by in categories: mobile phones, robotics/AI, sustainability, wearables

Imagine a more sustainable future, where cellphones, smartwatches, and other wearable devices don’t have to be shelved or discarded for a newer model. Instead, they could be upgraded with the latest sensors and processors that would snap onto a device’s internal chip—like LEGO bricks incorporated into an existing build. Such reconfigurable chipware could keep devices up to date while reducing our electronic waste.

Now MIT engineers have taken a step toward that modular vision with a LEGO-like design for a stackable, reconfigurable artificial intelligence .

The design comprises alternating layers of sensing and processing elements, along with light-emitting diodes (LED) that allow for the chip’s layers to communicate optically. Other modular chip designs employ conventional wiring to relay signals between layers. Such intricate connections are difficult if not impossible to sever and rewire, making such stackable designs not reconfigurable.

Jun 14, 2022

San Diego drone tech startup raises $165M to build AI pilot

Posted by in categories: drones, information science, mapping, robotics/AI

Shield AI, an artificial intelligence company focusing on drones and other autonomous aircraft, is on a mission to build “the world’s best AI pilot.” To that end, the San Diego startup has raised $90 million in equity and $75 million in debt as part of a Series E fundraising round. The funding values Shield AI at $2.3 billion.

Hivemind employs state-of-the-art algorithms for planning, mapping, and state-estimation to enable drones to execute dynamic flight maneuvers. On aircraft, Hivemind enables full autonomy and is designed to run fully on the edge, disconnected from the cloud, in high-threat GPS and communication-degraded environments.

Jun 14, 2022

UK Military Wants to Install Quantum Computers in Tanks for Some Reason

Posted by in categories: computing, military, quantum physics

Deployment of portable quantum computer systems.


Looks like the United Kingdom wants to create smart tanks, because it’s using a new quantum computer to put more tech in its arsenal.

Jun 14, 2022

The Human Brain Runs Way Hotter Than We Ever Realized, Scientists Find

Posted by in categories: computing, neuroscience, sex

From the engine in your car to the components in your laptop, mechanical systems tend to heat up when they’re working harder. Now new research has revealed that the same can be said of the brain – and it runs hotter than was previously thought.

Some parts of the deep brain can get up to 40 °C (104 °F), a new study shows, though this varies by sex, time of day, and various other factors. Compare that with the average oral temperature in human bodies, which is typically under 37 °C (98.6 °F).

This isn’t a sign of malfunctioning though, researchers think, and may actually be evidence that the brain is operating healthily. Unusual heat signatures could potentially be used in the future to look for signs of brain damage or disorder.

Jun 14, 2022

Scientists accidentally discover black hole so big you can spot it with a backyard telescope

Posted by in category: cosmology

Now, an international team of researchers say they have discovered a supermassive black hole that gobbles up the equivalent of one Earth every second.

By looking at other luminous objects that are billions of years old, the team confirmed the newly discovered behemoth was the brightest and fastest-growing supermassive black hole of the past 9 billion years (that we know of).

Located in the bright constellation of Centaurus, this luminous cosmic beast is more than 500 times larger than the supermassive black hole at the centre of our own galaxy.

Jun 14, 2022

New potential diabetes treatment regenerates insulin-producing cells

Posted by in categories: biotech/medical, innovation

An emerging way to treat diabetes is to repair or replace the cells in the body that naturally produce insulin. Swedish researchers have now identified a molecule that helps stimulate the growth of new insulin-producing cells, and uncovered how it works, opening up new potential diabetes treatments.

Diabetes is characterized by issues with insulin, the hormone that regulates blood glucose levels and allows the body’s cells to access it for energy. In type 1 diabetes, beta cells in the pancreas that normally produce insulin can’t make enough to meet demand, often because those cells have been destroyed by the immune system.

Treatment currently relies on administering insulin shots, but an emerging branch of study centers on finding ways to replenish the insulin production of those beta cells. Previous breakthroughs have included creating artificial beta cells that can pick up the slack, or using stem cells to grow new ones.

Jun 14, 2022

Amazon Robotics supports Georgia Tech startup incubator

Posted by in category: robotics/AI

Amazon Robotics announced a three-year investment to the Georgia Tech’s Advanced Technology Development Center (ATDC) to help support the growth of startups and… See more.


Funding will go toward assisting diverse entrepreneurs in the fields of robotics and automation.

Jun 14, 2022

Hubble spies stellar ‘ghost’ wandering the Milky Way galaxy

Posted by in category: cosmology

For the first time, the Hubble Space Telescope has detected a lone object drifting through our Milky Way galaxy – the invisible, ghostly remains of a once radiant star.

When stars massive enough to dwarf our sun die, they explode in a supernova and the remaining core is crushed by its own gravity, forming a black hole.

Sometimes, the explosion may send the black hole into motion, hurtling across the galaxy like a pinball. By rights, there should be a lot of roving black holes known to scientists, but they are practically invisible in space and therefore very difficult to uncover.

Jun 14, 2022

Constant Renewal: Your Liver Is Just Under Three Years Old

Posted by in category: biotech/medical

Using retrospective radiocarbon birth dating, an international team of scientists shows that the human liver stays young throughout life and is on average less than three years old.

As one of the major organs of the body, the liver performs many essential biological functions. Almost all the blood in a person’s body passes through the liver, where waste products, worn-out cells, and toxins are filtered. It also produces bile, a solution that helps digest fats and eliminate waste products. Those are just a couple of the major duties it performs — more ore than 500 vital functions have been identified with the liver.

The liver is an essential organ that takes care of detoxifying our bodies. It is prone to injury because it is constantly exposed to toxic substances. To overcome this, the liver has a unique capacity among organs to regenerate itself after damage. Because a lot of the body’s ability to heal and regenerate itself decreases as we age, scientists were wondering if the liver’s capacity to renew also diminishes with age.