Coral reefs worldwide are threatened by a variety of human impacts. Fishing is among the most pressing threats to reefs, because it occurs on most reef systems and fundamentally alters food webs. Meanwhile, observing coral reefs, particularly remote, hard-to-access locations such as the Northwestern Hawaiian Islands (NWHI), remains notoriously difficult and expensive. But a University of Hawai'i (UH) at Mānoa researcher and her collaborators may have found a mysterious natural phenomenon that can help us observe coral reef health from space.
Zoologists from Trinity College Dublin, working with partners from Halu Oleo University (UHO) and Operation Wallacea, have discovered two beautiful new bird species in the Wakatobi Archipelago of Sulawesi, Indonesia. Details of their discovery—of the Wakatobi white-eye and the Wangi-wangi white-eye—have been published today (April 24) in the Zoological Journal of the Linnean Society, which is the same journal in which Alfred Wallace and Charles Darwin published their game-changing original ideas about speciation in 1858.
Researchers at Utah State University's Splash Lab discovered a new mode of water surface skipping termed "water walking".
MBARI researchers recently measured high concentrations of carbon dioxide in air blowing out to sea from cities and agricultural areas, including Silicon Valley. In a new paper in PLOS ONE, they calculate that this previously undocumented process could increase the amount of carbon dioxide dissolving into coastal ocean waters by about 20 percent.
A more efficient and cost-effective way to detect lanthanides, the rare earth metals used in smartphones and other technologies, could be possible with a new protein-based sensor that changes its fluorescence when it binds to these metals. A team of researchers from Penn State developed the sensor from a protein they recently described and subsequently used it to explore the biology of bacteria that use lanthanides. A study describing the sensor appears online in the Journal of the American Chemical Society.
While studying the chemical reactions that occur in the flow of gases around a vehicle moving at hypersonic speeds, researchers at the University of Illinois used a less-is-more method to gain greater understanding of the role of chemical reactions in modifying unsteady flows that occur in the hypersonic flow around a double-wedge shape.
A database of women scientists that was created a year ago by a team led by a CU School of Medicine postdoctoral fellow has grown to list more than 7,500 women and is featured in an article published today in PLOS Biology.
Experiments show that a superfluid helium film forming on a carbon nanotube grows layer by layer, with one layer fully forming before the next one starts.
[Physics] Published Tue Apr 23, 2019
Viewpoint: Yes, Sexual Harassment Still Drives Women Out of Physics
Author(s): Julie Libarkin
A survey of female undergraduates in physics found that three quarters of them experience some form of sexual harassment, leaving them alienated from the field.
[Physics 12, 43] Published Mon Apr 22, 2019
Focus: <i>Video</i>—Tunable Origami
Author(s): David Ehrenstein
A folding pattern produces a metamaterial with properties that can be tuned over a wide range.
[Physics 12, 44] Published Fri Apr 19, 2019
Synopsis: An Airless Test for 2D Superconductors
Researchers repurpose a scanning tunneling microscope to measure the Meissner effect in 2D films kept under vacuum, allowing for confirmation of superconductivity.
[Physics] Published Thu Apr 18, 2019
Feature: Arts & Culture: Turbulence in <i>The Starry Night</i>
Researchers analyzing Vincent van Gogh’s The Starry Night show that its swirling structures have turbulent properties matching those observed in the molecular clouds that give birth to stars.
[Physics 12, 45] Published Thu Apr 18, 2019
Synopsis: Drops Bounce Inside Liquids
Oil drops falling through a layered liquid with ethanol at the top and water at the bottom repeatedly jump inside the fluid.
[Physics] Published Wed Apr 17, 2019
Don't miss: Kubrick's genius, Haida mythology and the power of emotion
Explore the life and work of director Stanley Kubrick, watch ancient folklore in an endangered language, and discover how emotion shapes the human brain
Einstein’s genius casts a long shadow over fundamental physics. The documentary Chasing Einstein wonders if reverence for the past is blocking breakthroughs
From wormhole passages to white hole escape routes, no one knows for certain what lurks beyond a black hole’s event horizon – so choose your own unsettling fate
Calculations show that small fluctuations in solar radiation could cause a transition between a warm Earth and an icy Earth.
[Physics] Published Tue Apr 16, 2019
We could solve the biggest problem in maths in the next decade
Whoever solves the long-standing P versus NP maths problem will win $1 million. Now a poll of computer scientists suggests the solution may be found sooner than expected
Clouds of rocks and gas known as pyroclastic flows spew out of volcanoes and race over land at terrifying speeds, skating on an air pocket beneath the rubble
The multiplication you learn at school is too slow for computers, so mathematicians are always searching for better methods. Now they have found one
Cooling devices like refrigerators and air conditioners consume a quarter of the world's electricity, but a plastic-based material could make them much greener
New device could boost telecommunications and be adapted for photonics
Revamped accelerator will soon be smashing electrons and positrons together
New material is made by compressing treated wood
Technique could be used to create quantum-information systems
Breakthrough could lead to new type of energy source
Ising model could account for nut production of pistachio orchards
Agency will now require every grantee organization to report cases of sexual harassment