Mathematics

Mental math's shortcut—pupil dilation suggests people start solving before all numbers are in

People often solve simple arithmetic problems, such as basic addition, subtraction, multiplication or division, in their minds. The precise mental processes they rely on to solve these problems, however, are not entirely ...

Plants & Animals

How poison frogs built a chemical weapons system one evolutionary step at a time

Poison frogs are small and brightly colored amphibians that originate from Central and South America. As suggested by their name, these frogs can release highly toxic chemicals from their skin, which deter and neutralize ...

PFAS detected in dolphin milk may pass from mothers to calves

Researchers have found that a group of chemicals known as PFAS can be transferred from mother dolphins to their nursing calves, adding to the evidence that these persistent contaminants can be transferred from mothers to ...

Unpredictable AGI may resist full control, making diverse AI safer

Public concern about AI safety has grown significantly in recent years. As AI systems become more powerful, a key question is how we make sure they do what we actually want. Now, researchers suggest that rather than trying ...

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Medical Xpress

Tech Xplore

Cutting calories to slow aging—without compromising health

Restricting calorie intake in species such as mice, rhesus monkeys, and fruit flies has been shown to extend their lifespans. In some cases, these animals not only live longer, but are also free of disease. But when pushed ...

More rhythm, less blues: Program boosts class behavior

From flash mobs to line-dancing to the Nutbush, experiencing rhythm and movement in a group context is known to boost mental and physical health in people of all ages. Now a University of the Sunshine Coast study published ...

Q&A: How research aims to improve bad housing data

Nicholas J. Marantz, associate professor of urban planning and public policy at UC Irvine, is investigating how effectively current data sources track changes in residential housing stock. His aim is to understand how policy ...

The moon might be more prone to fires

Engineers love a good practical challenge, especially when it comes to spaceflight. But there's one particular challenge facing the crewed missions of the near future that scares mission planners above almost all others—fire. ...

Freed whale gets stranded again off German coast

A humpback whale struggling in shallow waters off Germany's northern Baltic Sea coast has become stranded for a third time, experts said on Sunday, just hours after the animal had freed itself from a sandbank.

In world first, antimatter taken on test drive at CERN

CERN scientists on Tuesday pulled off the unprecedented feat of transporting antiprotons by road, successfully test-driving the world's first antimatter delivery system, with an eye to one day supplying research labs across ...

The time capsule in the salt flat

There is a place in northern Chile, 3,500 meters above sea level in the Andean Altiplano, where almost nothing survives. The Salar de Pajonales is a salt flat of savage extremes temperatures swinging from −23°C to 26°C, solar ...

The world's waste mountain is rising at an alarming rate

The world is struggling to deal with ever-growing quantities of waste. A new World Bank Group report, What a Waste 3.0, shows that more than 2.6 billion tonnes of municipal solid waste (which includes rubbish from households, ...

The moon that tipped a planet

Neptune is the solar system's most distant planet, a cold, blue ice giant sitting nearly 30 times further from the sun than Earth. At that remote distance, temperatures plunge to nearly minus 200 degrees Celsius and a single ...

Black hole mergers test the limits of general relativity

General relativity stands as one of the bedrock theories in modern physics. Its strange view of relative time and space has been confirmed by countless experimental and observational tests, from rotational frame dragging ...