Thousands of years ago, parts of the Arabian Peninsula were filled with freshwater lakes and wildlife. Yet surprisingly few traces of human activity have been found there. A new study suggests the reason wasn’t a lack of water, but something much less obvious: the right kind of stone. Today, much of southern Arabia is covered by enormous stretches of desert. But the landscape looked very different during wetter periods, when lakes and vegetation spread across areas that are now almost completely dry. These conditions might seem ideal for prehistoric communities looking for places to live and find food. So why…
Author: Michael
Theft is almost universally considered an exploitative behavior. The conventional view underlying judicial systems is that the act of taking resources from others without offering compensation stems from moral and personal failings. As a result, these systems rely on the assumption that the threat or imposition of punishment will motivate criminal offenders to adjust their future behavior. Yet the outcome is not always success.
Most of us spend much of our day staring at organic light-emitting diodes, or OLEDs, which convert electricity into light to produce the colorful displays on smartphones, computer monitors and televisions. Although metal-free light-emitting materials that produce all colors are in demand, it has been difficult to make ones that efficiently emit orange-to-red light. Now, researchers led by the University of Osaka have shown that such materials do not need to be held in a rigid shape to work well: flexible molecules that can change shape can also emit orange-to-red light.
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Reddit’s new AI-powered reviews summarize what users like and dislike about 10,000 products, helping shoppers research purchases ahead of the holidays.
Scientists examining lunar soil collected by China’s Chang’e-6 mission have discovered an unexpected form of iron preserved within microscopic impact glass. Tiny particles of iron trapped inside lunar glass may preserve evidence of the Moon’s ancient magnetic history. Scientists studying soil returned by China’s Chang’e-6 mission have identified face-centered cubic γ-Fe, an unusual form of […]
The average person might be willing to pay a 10% premium for vehicle tires labeled as “salmon safe,” according to a new study led by Washington State University.
Cobalt phosphide (CoP) is a promising alternative to platinum for producing hydrogen from water. However, scientists have struggled to explain why it performs so well. Computer models have suggested that CoP should become unstable under the conditions used to produce hydrogen, yet experiments show that it remains active and durable in acidic, neutral and alkaline environments.
In 2031, Japan’s Hayabusa2 spacecraft will arrive at the near-Earth asteroid 1998 KY26: a tiny body that is accelerating in a way that astronomers have struggled to explain. Some studies have suggested that the asteroid is pushed along by water escaping from it as gas, making it an as-yet theoretical “dark comet.”
As Flock Safety looks to expand its already massive network of automatic license plate readers (ALPRs) throughout the US, political lobbying has become a key tool for the extremely unpopular company to achieve its aims. As the Chicago Sun Times reported in the wake of the US midterms, the controversial AI surveillance company Flock Safety has given nearly $500,000 to campaigns for local and state candidates in Illinois alone over the past two-odd years. The political spending spree in Illinois comes as a result of two contracts with lobbying firms including Cozen O’Connor Public Strategies, which the Chicago Sun reports…