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Material properties such as sound insulation, resistance to extreme heat and thermal expansion originate from how the zillions of microscopic building blocks (nuclei and electrons) interact at equilibrium and respond to perturbations. Atoms are typically about one ten-billionth of a meter across, so there can be a lot of parts to keep track of—a task that is complicated at the quantum-mechanical level, where particles are neither here nor there until observed.
Electronic voting, the use of electronic systems to cast, record or count votes, could potentially simplify the process of electing new political leaders or other representatives. While some countries have already started using internet-connected devices or electronic voting machines at polling stations, the trustworthiness, security and anonymity of electronic voting systems are still widely debated.
Helium—the lightest atom that can be laser-cooled and controlled—powers a new design for high-powered, stable quantum computers.
New York City opened a public portal containing 170,000 pages of 9/11 records sought for years by first responders, survivors and families concerned about Ground Zero health risks
Surveillance video shows the woman fire a gunshot in the Port Orange Police station lobby before walking back out into the parking lot and approaching officers
Surveillance video shows the woman fire a gunshot in the Port Orange Police station lobby before walking back out into the parking lot and approaching officers
The response was part of”Operation Street Sweeper,” a coordinated effort targeting street takeovers; 570 people were cited and seven firearms were recovered at the scene
The response was part of”Operation Street Sweeper,” a coordinated effort targeting street takeovers; 570 people were cited and seven firearms were recovered at the scene
Probationary police officer Kamir Loubarria collapsed while working out at the Stephen D. McDonald Police Academy; he was “committed to a life of service,” the department stated
Probationary police officer Kamir Loubarria collapsed while working out at the Stephen D. McDonald Police Academy; he was “committed to a life of service,” the department stated
UK astronomers have uncovered new clues about the origin of 3I/ATLAS—only the third known object from beyond the solar system ever spotted. In a new paper published in Monthly Notices of the Royal Astronomical Society, researchers reveal that the comet formed in extremely cold conditions, far from any star.
We know the universe is constantly expanding. We also know that gravitationally bound objects, such as solar systems and black holes, seem to be immune to that expansion. But a new paper by theoretical physicists Valerio Faraoni and Massimiliano Rinaldi challenges that assumption. They suggest that black holes can’t just ignore the expanding universe around them. Instead, they have to expand along with it. Their paper is posted to the arXiv preprint server.
UK astronomers have uncovered new clues about the origin of 3I/ATLAS—only the third known object from beyond the solar system ever spotted. In a new paper published in Monthly Notices of the Royal Astronomical Society, researchers reveal that the comet formed in extremely cold conditions, far from any star.
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have captured one of the most detailed three-dimensional views yet of a massive binary star system while it is still being born. By tracking the motions of two young, massive stars over nearly eight years, the team found that the pair follows a highly stretched-out orbit and is surrounded by strongly tilted gas disks, both relative to each other and to the stars’ orbit.
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