No ‘human era’ in Earth’s geological history, scientists say

No ‘human era’ in Earth’s geological history, scientists say

A top panel of geologists has decided not to grant the ‘human age’ its own distinct place in earth’s geological timeline. A top panel of geologists has decided not to grant the ‘human age’ its own distinct place in Earth’s geological timeline after disagreeing over when exactly our era might have begun. After 15 years … Read more

A spider that aspires to be an ant

A spider that aspires to be an ant

Myrmarachne colombiana. Credit: George Poinar Jr. Arachnophobia can make humans flee at the sight of a brown recluse, black widow or even a daddy long legs, but animal predators of spiders know no such fear. That’s why, paleobiologist George Poinar Jr. explains, some spider species have developed the defense of deception. They masquerade as a … Read more

Using physics principles to understand how cells self-sort in development

Using physics principles to understand how cells self-sort in development

Physics alumna Erin McCarthy ’23, right, was lead author on a study published in Physical Review Letters which uncovered mechanisms that cause particles to sort spontaneously into different groups. Professor M. Lisa Manning, left, was a co-author. Credit: Syracuse University Erin McCarthy ’23, physics summa cum laude, is a rarity among young scientists. As an … Read more

Water persisted in Mars’ Gale crater for longer than previously thought, study finds

Water persisted in Mars’ Gale crater for longer than previously thought, study finds

Overview of Feòrachas structure, depicting geometries of lineaments and locations of key observations. Context map shows rover traverse (white line). Boxwork map shows orientation of ridges. Rose diagram depicts orientation of those ridges (resultant 215°, n = 10). Credit: NASA/JPL-Caltech/ MSSS. Credit: Geology (2024). DOI: 10.1130/G51849.1 Billions of years ago, Mars was home to abundant … Read more

Exploration—not work—could be key to a vibrant local economy

Exploration—not work—could be key to a vibrant local economy

Diverse activities in mobility networks. a, Power-law distribution of human activities in cities. The activity frequency follows the truncated power-law distribution. b, Office visits as an example of frequent and regular activities with a scattered spatial distribution. c, French restaurant visits as an example of infrequent and irregular activities with a concentrated spatial distribution. Credit: … Read more

Entanglements of humpback whales in fish farms rare, and naivety could be to blame

Entanglements of humpback whales in fish farms rare, and naivety could be to blame

Credit: Pixabay/CC0 Public Domain The first study of humpback whale entanglements in B.C. aquaculture facilities in PLOS One found eight over 13 years, with the curiosity of young whales a potential contributing factor. Entanglements are one of several threats to humpbacks. The eight occurred from 2008 to 2021 at seven fish farms, with five animals … Read more

Study outlines spectroscopic signatures of fractionalization in octupolar quantum spin ice

Study outlines spectroscopic signatures of fractionalization in octupolar quantum spin ice

A magnetic octupole and the three decreasing intensity peaks are predicted to be present in inelastic neutron scattering for π-flux QSI. Credit: Desrochers & Kim Quantum spin liquids are fascinating quantum systems that have recently attracted significant research attention. These systems are characterized by a strong competition between interactions, which prevents the establishment of a … Read more

A dynamically stable self-healable wire based on mechanical–electrical coupling

A dynamically stable self-healable wire based on mechanical–electrical coupling

(a) Schematic illustration of the core-shell configuration of the myelinated axon with efficient neural action potential transmission capability. The hydrogen bonds and Van der Waals forces between the myelin shell and axon core guarantee reliable transmission of neural action potential in myelinated axon. (b) Schematic illustration of self-healable wires (LM/SHP) with high dynamic stability and … Read more

Bird flu is causing thousands of seal deaths. Scientists aren’t sure how to slow it down

Bird flu is causing thousands of seal deaths. Scientists aren’t sure how to slow it down

A gray seal swims in Casco Bay, off Portland, Maine, in this Sept. 15, 2020 file photo. Seal die-offs from the bird flu have been detected everywhere from New England to Chile. Credit: AP Photo/Robert F. Bukaty, files Avian influenza is killing tens of thousands of seals and sea lions in different corners of the … Read more

Scientists develop catalyst designed to make ammonia production more sustainable

Scientists develop catalyst designed to make ammonia production more sustainable

Credit: Electrochimica Acta (2023). DOI: 10.1016/j.electacta.2023.143680 Ammonia is one of the most widely produced chemicals in the world, and is used in a great many manufacturing and service industries. The conventional production technology is the Haber-Bosch process, which combines nitrogen gas (N2) and hydrogen gas (H2) in a reactor in the presence of a catalyst. … Read more