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May 17, 2024

Self-balancing commuter pods ride old railway lines on demand

Posted by in category: transportation

Country folk tend to like the independence offered by their cars, so how do you get them to use public transit? The Monocab system may be the answer, as it utilizes individual on-demand pods that travel on existing abandoned railways.

It’s a bit of a vicious circle. Many people in rural areas prefer using their cars for getting to and from urban centers whenever they want, as opposed to waiting for the few buses or trains. This lack of interest in public transit results in even fewer buses and trains being offered, leading to even less uptake by the locals.

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May 17, 2024

I’m convinced NVIDIA’s CEO was right about coding being dead in the water as a career option after watching OpenAI’s GPT-4o coding demo

Posted by in category: robotics/AI

Despite being in its early release stages, GPT-4o is seemingly great at writing and detecting errors in code.

May 17, 2024

Watch: Sony’s new microsurgery robot stitches up a corn kernel

Posted by in categories: biotech/medical, robotics/AI

Sony has shown off its new surgical robot doing some super-precise work sewing up a tiny slit in a corn kernel. It’s the first machine of its kind that auto-switches between its different tools, and has successfully been tested in animal surgery.

It’s designed to help in the field of super-microsurgery, a highly specialized field in which surgeons operate on extremely small blood vessels and nerves, with diameters well under 1 mm (0.04 in). As you might imagine, this kind of thing requires incredibly steady hands, and specialists in this field often do their work whole looking through a microscope.

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May 17, 2024

AT&T Data Breach: What Is AT&T Doing for the 73 Million Accounts Breached?

Posted by in category: cybercrime/malcode

If you’re worried about your data, here’s what you can do, including how to reset your AT&T account passcode.

May 17, 2024

UK completes world’s first flights for quantum navigation that could replace GPS

Posted by in categories: government, military, quantum physics

A British consortium with funding from the UK government has successfully tested what it calls “un-jammable” quantum navigation tech in flight.

Geopolitical tensions and warfare have introduced GPS jamming as a means of messing with enemy communication and navigation. This can cause disturbances for both military and civilian transportation and location services.

The quantum-based navigation system is called Positioning, Navigation, and Timing (PNT). Its developers are quantum technology firm Infleqtion’s UK subsidiary in collaboration with aerospace company BAE Systems and defence tech contractor QinetiQ, among others.

May 17, 2024

TRANSIC: Sim-to-Real Policy Transfer by Learning from Online Correction

Posted by in categories: policy, robotics/AI

From Stanford TRANSIC: Sim-to-Real Policy Transfer by Learning from Online Correction.

From Stanford.

TRANSIC: Sim-to-Real Policy Transfer by Learning from Online Correction.

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May 17, 2024

Scientists Step Toward Quantum Internet With Experiment Under the Streets of Boston

Posted by in categories: computing, finance, internet, quantum physics, security

A quantum internet would essentially be unhackable. In the future, sensitive information—financial or national security data, for instance, as opposed to memes and cat pictures—would travel through such a network in parallel to a more traditional internet.

Of course, building and scaling systems for quantum communications is no easy task. Scientists have been steadily chipping away at the problem for years. A Harvard team recently took another noteworthy step in the right direction. In a paper published this week in Nature, the team says they’ve sent entangled photons between two quantum memory nodes 22 miles (35 kilometers) apart on existing fiber optic infrastructure under the busy streets of Boston.

“Showing that quantum network nodes can be entangled in the real-world environment of a very busy urban area is an important step toward practical networking between quantum computers,” Mikhail Lukin, who led the project and is a physics professor at Harvard, said in a press release.

May 17, 2024

Some brain injury patients would recover if life support weren’t ended

Posted by in categories: biotech/medical, neuroscience

A substantial proportion of people with a traumatic brain injury who had their life support withdrawn may have survived and at least partially recovered, a study suggests.

Traumatic brain injuries can occur due to a forceful blow, a jolt to the head or an object entering the brain, such as a bullet…

After comparing people with brain injuries whose life support was continued with those who had it turned off, scientists calculated that around 40 per cent in the latter group may have made some recovery.

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May 17, 2024

Accurately monitoring tool wear in precision machining

Posted by in categories: information science, robotics/AI

An advanced new technique combines machine-learning algorithms with measurements of vibrations for monitoring tool wear.

May 17, 2024

What is ‘time’ for quantum particles?

Posted by in categories: particle physics, quantum physics

In an amazing phenomenon of quantum physics known as tunneling, particles appear to move faster than the speed of light. However, physicists from Darmstadt believe that the time it takes for particles to tunnel has been measured incorrectly until now. They propose a new method to stop the speed of quantum particles.

In classical physics, there are hard rules that cannot be circumvented. For example, if a rolling ball does not have enough energy, it will not get over a hill, but will turn around before reaching the top and reverse its direction. In quantum physics, this principle is not quite so strict: a particle may pass a barrier, even if it does not have enough energy to go over it. It acts as if it is slipping through a tunnel, which is why the phenomenon is also known as quantum tunneling. What sounds magical has tangible technical applications, for example in flash memory drives.

In the past, experiments in which particles tunneled faster than light drew some attention. After all, Einstein’s theory of relativity prohibits faster-than-light velocities. The question is therefore whether the time required for tunneling was “stopped” correctly in these experiments. Physicists Patrik Schach and Enno Giese from TU Darmstadt follow a new approach to define “time” for a tunneling particle. They have now proposed a new method of measuring this time. In their experiment, they measure it in a way that they believe is better suited to the quantum nature of tunneling.

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