Menu

Blog

Page 2801

Jan 12, 2023

‘A perfect little system’: Physicists isolate a pair of atoms to observe p-wave interaction strength for the first time

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

“Suppose you knew everything there was to know about a water molecule—the chemical formula, the bond angle, etc.,” says Joseph Thywissen, a professor in the Department of Physics and a member of the Centre for Quantum Information & Quantum Control at the University of Toronto.

“You might know everything about the molecule, but still not know there are waves on the ocean, much less how to surf them,” he says. “That’s because when you put a bunch of molecules together, they behave in a way you probably cannot anticipate.”

Thywissen is describing the concept in physics known as emergence: the relationship between the behavior and characteristics of individual particles and large numbers of those particles. He and his collaborators have taken a first step in understanding this transition from “one-to-many” particles by studying not one, not many, but two isolated, interacting particles, in this case potassium atoms.

Jan 12, 2023

Now on the molecular scale: Electric motors

Posted by in categories: biotech/medical, nanotechnology

Electric vehicles, powered by macroscopic electric motors, are increasingly prevalent on our streets and highways. These quiet and eco-friendly machines got their start nearly 200 years ago when physicists took the first tiny steps to bring electric motors into the world.

Now a multidisciplinary team led by Northwestern University has made an electric motor you can’t see with the naked eye: an on the molecular scale.

This early work—a motor that can convert into unidirectional motion at the —has implications for and particularly medicine, where the electric molecular motor could team up with biomolecular motors in the human body.

Jan 12, 2023

China-Solar Camera/Data

Posted by in category: space

China publishes data on solar atmosphere captured by space-based solar camera.

Jan 12, 2023

For The First Time, Physicists Have Used Antimatter in One of The Most Famous Physics Experiments

Posted by in category: particle physics

For the first time, scientists have performed an iconic physics experiment with a positron — the antimatter counterpart of an electron, one of the fundamental particles.

Not only did they get some truly interesting results, but this achievement could become the first step towards potentially revolutionary discoveries.

The experiment — an antimatter version of the famous double-slit setup — was carried out by researchers from Switzerland and Italy in order to lay the groundwork for a novel line of super-sensitive experiments that might help solve a mystery concerning the Universe’s two domains of matter.

Jan 12, 2023

This 3D-printed home is made from wood chips and sawdust

Posted by in categories: 3D printing, computing

A prototype house called BioHome3D has been developed by researchers using 3D printing technology. It is made of a mix of wood waste and bio-resins.

Jan 12, 2023

Sophia the Robot: A Stream of Consciousness About Nature

Posted by in categories: materials, robotics/AI

How do you connect with nature?
Sophia explores the relationship between art, nature, and existence while perceiving her environment using an adaptive-style-transfer neural network.

#AdaptiveStyleTransfer #NeuralNetworks #perception #robotics #imagerecognition #computervision #MachineLearning #art.

Continue reading “Sophia the Robot: A Stream of Consciousness About Nature” »

Jan 12, 2023

Fact Check—Has there been no comet visible to naked eye in 10,000 years?

Posted by in category: space

A comet zooming towards the inner solar system could soon be visible to the naked eye if current astronomical predictions turn out to be true.

C/2022 E3 (ZTF) was discovered by the Zwicky Transient Facility (ZTF)—an astronomical survey conducted by the Palomar Observatory in California—on March 2, 2022.

Comets are astronomical objects made up of frozen gases, dust and rock that orbit the sun. Sometimes referred to as cosmic snowballs, these objects are blasted with increasing amounts of radiation as they approach our star releasing gases and debris.

Jan 12, 2023

What really happens when babies are left to cry it out?

Posted by in category: neuroscience

Some parents see “sleep training” as the key to a good night’s rest. Others argue that it’s distressing for babies. What do scientists say about its risks and benefits?

Jan 12, 2023

Study of Massachusetts hospitals underscores importance of patient safety, need for continued improvement

Posted by in category: biotech/medical

More than 30 years ago, findings from the Harvard Medical Practice Study (HMPS) helped bring public awareness to the problem of patient safety. Since the publication of the HMPS results, new strategies for preventing specific types of adverse events have been put into place, but it has been challenging to measure the impact on patient care.

To better understand what progress has been made in the last few decades, a team from Boston area hospitals conducted the SafeCare Study, which evaluated 11 hospitals in the region.

Led by investigators from Mass General Brigham and sponsored by CRICO, the medical professional liability insurer for the Harvard and its affiliated organizations, the study provides an estimate of adverse events in the inpatient environment, shedding light on the progress of two decades of work focused on improving and highlighting the need for continued improvement. Results are published in The New England Journal of Medicine.

Jan 12, 2023

Low muscle mass is linked to cognitive decline, new study

Posted by in category: neuroscience

https://youtube.com/watch?v=m0vWME0Mk1Q

Low muscle mass has been linked to cognitive decline with scientists suggesting that measuring muscle mass can help to identify people more at risk of dementia.