Phys.org news

Phys.org / From flower to fruit: A tug-of-war between growing tissues

Unlike an animal cell, a plant cell can't crawl or migrate. It's locked inside a rigid wall, cemented to its neighbors for life. A cell born at the center of a young fruit will still be there when that fruit ripens.

3 hours ago
Phys.org / Himalayan glacial lakes are growing—and so is the downstream flood risk

Dozens of glacial lakes have formed across northern India in the last three decades, while existing lakes have expanded rapidly, highlighting the need to monitor a landscape reshaped by climate change.

1 hour ago
Phys.org / Tightly guided atoms could enable low-power quantum navigation when GPS fails

Within tiny halos of light clinging to a vanishingly thin wisp of optical fiber, scientist Jongmin Lee guides atoms like marbles through a narrow pipe. Rock the fiber and the atoms shift side by side; they just don't fall ...

3 hours ago
Phys.org / Kids' brains are built for distraction. Sometimes that's a good thing.

Parents often learn the hard way that to make it anywhere on time, they should calculate how much time they think they need to get ready—and double it.

3 hours ago
Phys.org / 'CRISPR-Combo' system speeds regeneration of hard-to-breed perennial crops

Editing a plant's genes is only half the battle. Before a new, improved trait can ever reach a farmer's field, scientists must be able to grow a whole plant from just a few edited cells—a process that can be slow, unreliable ...

1 hour ago
Phys.org / First PLP-dependent enzyme that influences bacterial protein production discovered

Researchers from the Singapore-MIT Alliance for Research & Technology's (SMART) Antimicrobial Resistance (AMR) interdisciplinary research group, alongside collaborators from Massachusetts Institute of Technology (MIT), Nanyang ...

3 hours ago
Phys.org / How atmospheric events at the top of the world could have triggered two devastating California floods

In early 2017 and 2023, California experienced two catastrophic and record-breaking floods that caused billions of dollars in damage, triggered mudslides and forced thousands of people to evacuate. Why this happened left ...

7 hours ago
Phys.org / A cellular threshold can determine whether herpesvirus becomes active or lies dormant

During the COVID-19 pandemic, we wore masks and kept 2 meters (6.6 feet) apart in an effort to reduce the spread of the tiny droplets we release into the air with every breath, conversation or cough. The main goal was to ...

4 hours ago
Phys.org / Gondwana really was a supercontinent—and it may have helped kickstart life on Earth

Some 550 million years ago, Earth looked very different than it does today. The Southern Hemisphere was dominated by an enormous single continent known as Gondwana.

4 hours ago
Phys.org / Ultrathin silicon structures can tune mid-IR light in billionths of a second

Light in the mid-infrared (mid-IR) portion of the electromagnetic spectrum plays a key role in modern sensing. Because molecules interact with this kind of light in specific ways, researchers use technologies like mid-IR ...

4 hours ago
Phys.org / Spinons may help electrons pair along stripes in some superconductors

Superconductors are materials that carry electricity with zero resistance below specific temperatures. Many of these materials become superconducting at very low temperatures, yet some enter superconducting phases at higher ...

9 hours ago
Phys.org / A galaxy with almost no stars? New Cloud-9 observations strengthen the case

Astronomers have taken one of the deepest looks yet at Cloud-9, a candidate "dark galaxy," and found no trace of stars. The paper outlining this discovery was posted to the arXiv preprint server on Aug. 21.

11 hours ago