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Phys.org / What one of Emperor Hadrian's latrines is telling us about the durability of Roman concrete

One of the many marvels of the Roman world is that some of its buildings are still with us. But why have they lasted for so long when some relatively modern structures are in a state of decay after a few decades?

3 hours ago
Phys.org / New 3D thermal cloak hides objects from heat in any direction

Researchers have designed and built the first 3D device that can make objects invisible to heat, an advance that could transform how we protect sensitive electronics, manage heat in microchips and shield equipment from thermal ...

2 hours ago
Phys.org / 'Silly sprinklers' put in reverse to further unravel decades-old physics puzzle

Each summer, lawns are marked by a familiar addition: "silly sprinklers," whose loops and spirals spew water in creative ways. While seemingly frivolous in their construction, a team of mathematicians has used their design ...

2 hours ago
Tech Xplore / Metals' atomic arrangement can create 'corrosion highways' in nuclear reactors

Nuclear reactors are traditionally powered with dense fuel rods that can produce about 1 gigawatt of carbon-free electricity, enough to power about 100,000,000 lightbulbs. Newer power plant designs using molten salt for cooling ...

2 hours ago
Phys.org / New imaging method reveals how electric fields reshape ferroelectric materials

New research is shedding light on longstanding debates over the behavior of ferroelectric materials when those materials are exposed to electric fields. The findings stem from the use of a novel technique that allows researchers ...

2 hours ago
Phys.org / Scientists uncover molecular mechanism linking water-saving irrigation to cadmium accumulation in rice

Water-saving irrigation practices, including intermittent irrigation, are essential for sustainable rice cultivation amid growing freshwater shortages. However, periodic drainage creates aerobic soil conditions that drastically ...

1 hour ago
Medical Xpress / A new option for long-term care costs

An estimated 70% of Americans will need long-term care at some point in their lives, but "they haven't planned for it or saved for it," said Cathleen MacCaul, advocacy director for AARP Washington State, which supported the ...

1 hour ago
Phys.org / Scientists and citizens are more persuasive than government and industry in mobilizing action, study finds

In environmental, health and technology crises, Americans are more persuaded to take action by scientists and public consensus than by leaders in government and industry, according to a study in the Proceedings of the National ...

2 hours ago
Medical Xpress / Is using screens to calm a child bad? It depends.

In "Llama Llama Mad at Mama," a popular children's book from 2007, a little Llama Llama goes to the grocery store with his mama and becomes overwhelmed by all the sounds, sights, smells and shopping decisions happening around ...

2 hours ago
Medical Xpress / Brains of teens with autism 'tune in' less to unfamiliar voices, study finds

Like other teenagers, teens on the autism spectrum are itching to exercise their social muscles. They hope for new friends, fun with people who share their interests, maybe even a romantic relationship.

2 hours ago
Phys.org / The family tree of viruses just grew, and it paves the way for a new approach to agricultural research

Researchers have discovered that a group of viruses known to infect an agriculturally important plant pathogen has remained genetically stable for an astonishing four decades. The discovery of a disease-fighting virus that ...

2 hours ago
Tech Xplore / Paintable electrodes could power creative and colorful wearable sensors

Engineers at Penn State are blending art and science to create cute, paint-on tattoos that could help spot heart attacks early, power robotic prosthetics and read brain waves—all within a colorful, customizable system that ...

2 hours ago