Phys.org news

Phys.org / Fossil amber reveals the secret lives of Cretaceous ants

Tiny insects trapped in amber could tell us a great deal about their roles in past ecosystems: pollinators, parasites, predators, and prey. But how many of the insects preserved alongside each other reflect interactions during ...

1 hour ago in Biology
Phys.org / A new, useful absorption limit for ultra-thin films

The applications of ultrathin, conductive films such as those made of graphene have many applications, but it's been thought their efficacy is limited to absorbing only half of the incidental light at best. A research group ...

12 hours ago in Nanotechnology
Phys.org / Single-celled organism becomes multicellular via three different pathways

Some single-celled organisms are known to transition to multicellularity during their lifetimes, usually either by cloning themselves or when many similar cells come together to form a larger multicellular organism. A new ...

8 hours ago in Biology
Phys.org / Rydberg atoms detect clear signals from a handheld radio

For the first time, a team of US researchers has used sensors containing highly excited Rydberg atoms to detect signals from an ordinary handheld radio. Through a careful approach to demodulating the incoming signals, Noah ...

12 hours ago in Physics
Phys.org / Sea urchin spines inspire self-powered underwater sensors

Nature does it again! The natural world has a knack for giving us the blueprints for some useful technologies, and the humble sea urchin is the latest contributor. Scientists have designed a new class of smart sensors by ...

12 hours ago in Biology
Phys.org / Russian astronomers observe the eruptive behavior of a young star

Russian astronomers from Moscow State University have performed photometric, polarimetric, and spectroscopic observations of a young star designated IRAS 21204+4913. Results of the new observations, which were published February ...

14 hours ago in Astronomy & Space
Phys.org / Energy loss triggers quantum thermal Hall-like effect at macroscopic scale

In many quantum materials—materials with unusual electrical and magnetic properties driven by quantum mechanical effects—electrons can organize themselves into Landau levels. Landau levels are essentially quantized energy ...

14 hours ago in Physics
Phys.org / Neanderthal males, human females? How ancient attraction shaped the human genome

The human genome is a rich, complex record of migration, encounters, and inheritance written over thousands of millennia. Genomic research by members of Sarah Tishkoff's lab at the University of Pennsylvania are revisiting ...

6 hours ago in Biology
Phys.org / Turning over a new leaf in analyses of natural products

Scientists have developed a new way to help understand what happens in the body when people consume a plant product and the many chemicals it contains. The Journal of Natural Products published the method to quickly analyze ...

8 hours ago in Chemistry
Phys.org / A cosmic explosion with the force of a billion suns went unseen—until we caught its echo

Some of the universe's most extreme explosions leave behind almost no trace. The original explosion is unseen, but our observations can capture the long-lived echo it leaves behind as the shock front plows into its surrounding ...

8 hours ago in Astronomy & Space
Phys.org / Tackling the global tuberculosis crisis: An emerging class of antibiotics offers hope

Researchers from the University of Sydney and the Centenary Institute have discovered how a promising class of experimental antibiotics disrupts the bacterium that causes tuberculosis (TB), paving the way for urgently needed ...

9 hours ago in Biology
Phys.org / Laser technique can quickly check mRNA packaging in lipid nanoparticles

Messenger RNA (mRNA) technology is transforming medicine by providing our cells with genetic instructions to produce proteins that help the immune system prevent or fight a wide range of diseases, including cancer and other ...

9 hours ago in Nanotechnology