Phys.org news

Phys.org / Fossil dental exams reveal how tusks first evolved

A wide variety of animals have tusks, from elephants and walruses to five-pound, guinea pig-looking critters called hyraxes. But one thing tusked animals have in common is that they're all mammals—there are no known fish, ...

39 minutes ago in Biology
Phys.org / This device could usher in GPS-free navigation

Don't let the titanium metal walls or the sapphire windows fool you. It's what's on the inside of this small, curious device that could someday kick off a new era of navigation.

3 hours ago in Physics
Phys.org / Study reveals a gene crucial to sperm cell production

Scientists at Cincinnati Children's appear to have flipped another piece in the underexplored puzzle of male infertility.

3 hours ago in Biology
Phys.org / Searching for Earth 2.0? Zoom in on a star

Astronomers searching for Earth-like planets in other solar systems have made a breakthrough by taking a closer look at the surface of stars.

1 hour ago in Astronomy & Space
Phys.org / How do plants act fast to fight off infections?

New work led by Carnegie's Kangmei Zhao and Sue Rhee reveals a new mechanism by which plants are able to rapidly activate defenses against bacterial infections. This understanding could inspire efforts to improve crop yields ...

1 hour ago in Biology
Phys.org / A new 3D printing frontier: Self-powered wearable devices

When most people think of wearable devices, they think of smart watches, smart glasses, fitness trackers, even smart clothing. These devices, part of a fast-growing market, have two things in common: They all need an external ...

1 hour ago in Nanotechnology
Phys.org / Research inspects planetary nebula NGC 6905 and its central star

Using the Nordic Optical Telescope (NOT), astronomers have investigated a planetary nebula known as NGC 6905 and its central star. Results of the study, presented in a paper published October 18 on the arXiv pre-print server, ...

8 hours ago in Astronomy & Space
Phys.org / A new way to generate light through use of pre-existing defects in semiconductor materials

Researchers from the Low Energy Electronic Systems Interdisciplinary Research Group at Singapore-MIT Alliance for Research and Technology, MIT's research enterprise in Singapore, together with collaborators at the MIT, ...

6 hours ago in Physics
Phys.org / Parasite that replaces a fish's tongue caught at Texas state park

An unknown person working at Galveston Island Sate Park, Texas Parks and Wildlife, has posted a picture of a unique fish that was caught at the park on Facebook—it has no natural tongue. Instead, it has a tongue made up ...

7 hours ago in Biology
Phys.org / Using overpasses as shelter from tornado?

Meteorologists and emergency workers continue to contest the popular thinking that waiting out a tornado under an overpass is safe. According to the National Weather Service, doing so could actually increase the risk of death, ...

7 hours ago in Physics
Phys.org / Tube-in-tube structure going strong

Similar to grass stems, Lawrence Livermore National Laboratory (LLNL) scientists have created nanostrut-connected tube-in-tubes that enable stronger low-density structural materials.

7 hours ago in Nanotechnology
Phys.org / A new model could help stall shifting sand dunes, protecting infrastructure and ecosystems

Cambridge scientists have used downscaled laboratory models to show how sand dunes move through a landscape, revealing the conditions that determine whether they will pass through hurdles in their path—like pipelines or ...

7 hours ago in Physics