Surround Sound From Lightweight Roll-To-Roll Printed Loudspeaker Paper

“Researchers from the fields of print media technology, chemistry, physics, acoustics, electrical engineering, and economics from six nations developed a continuous, highly productive, and reliable roll production of loudspeaker webs,” reports project manager Georg C. Schmidt. [For those unfamiliar with roll-to-roll processing, it is the process of creating electronic devices on a roll of flexible plastic or metal foil, which, among…

SEC To Review Brokers’ Restrictions on GameStop, AMC Trading

Securities regulators said Friday they plan to closely review the actions of some brokerage firms [Editor’s note: the link may be paywalled; alternative source] that restricted investors’ ability to trade volatile stocks such as GameStop this week. From a report: The Securities and Exchange Commission’s statement on Friday is the clearest indication yet that regulators are examining potential misconduct around the…

GameStop, AMC Trading Now Being Restricted at TD Ameritrade, Schwab

Some major brokerage houses have begun to respond to a frenetic surge in the price of shares of companies that has been attributed to rabid buying by individual investors on social-media platforms. From a report: On Wednesday, TD Ameritrade said it was restricting trading for GameStop and AMC Entertainment Holdings, as well as other names, amid a triple-digit percentage surge in…

Sparrows are healthier living in groups with diverse personalities

Individual house sparrows show distinct personality types, and they are healthier when they live in groups that reflect a diversity of sparrow personalities Source: https://www.newscientist.com/article/2265802-sparrows-are-healthier-living-in-groups-with-diverse-personalities/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…

A benchmark for single-electron circuits

Manipulating individual electrons with the goal of employing quantum effects offers new possibilities and greater precision in electronics. However, these single-electron circuits are governed by the laws of quantum mechanics, meaning that deviations from error-free operation still occur—albeit (in the best possible scenario) only very rarely. Thus, insights into both the physical origin and the metrological aspects of this fundamental uncertainty…

New evidence for multiple ice ages on Mars

Earth has had at least 5 major ice ages. Now it appears Mars – the next planet outward from the sun – has undergone anywhere from half a dozen to 20 ice ages in the past several hundred million years. Source: https://earthsky.org/space/new-evidence-for-multiple-ice-ages-on-mars…

Our world is losing ice at a record rate

The rate at which ice is disappearing across the planet has been speeding up, with 65% since the 1990s, a survey of global ice loss using European Space Agency satellite data reveals. Source: https://earthsky.org/earth/esa-satellites-show-record-rate-ice-loss…

Google Says It May Have Found a Privacy-Friendly Substitute To Cookies

Google says its new machine learning algorithms could replace cookie-based ad targeting without invading your privacy. Axios reports: Google has been testing a new API (a software interface) called Federated Learning of Cohorts (FLoC) that acts as an effective replacement signal for third-party cookies. The API exists as a browser extension within Google Chrome. The company said Monday that tests of…

China’s huge FAST telescope to open to international observers

FAST’s 500-meter (1,640-foot) dish makes it the world’s largest single-dish radio observatory. It’s expected to open to international observers in 2021. Source: https://earthsky.org/space/worlds-largest-radio-telescope-china-fast…

Trump Seeks To Curb Foreign Cyber Meddling on Last Day in Office

Outgoing President Donald Trump has signed an executive order aimed at thwarting foreign use of cloud computing products for malicious cyber operations against the United States, the White House said on Tuesday, Trump’s last full day in office. From a report: The order, first reported by Reuters, gives the Commerce Department authority to write rules to bar transactions with foreigners in…