- PhysOrg
- 19/8/30 23:30
An early milestone for developing missile technologies is to show they can work in computer-simulations or large-scale field tests that shake and spin components without falling to pieces.
An early milestone for developing missile technologies is to show they can work in computer-simulations or large-scale field tests that shake and spin components without falling to pieces.
A study out of Washington State University sought to determine if there is a measurable impact of harvest method on the phenolic profile of 'Brown Snout' juice and cider to better inform equipment adoption.
An increasingly alarming Hurricane Dorian menaced a corridor of some 10 million people—and put Walt Disney World and President Donald Trump's Mar-a-Lago resort in the crosshairs—as it steamed toward Florida on Friday with the potential to become the most powerful storm to hit the state's east coast in nearly 30 years.
As Hurricane Dorian was upgraded to a Category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale, NASA's fleet of satellites were gathering data during the day to assist weather forecasters and scientists. At 2:00 pm EDT the National Hurricane Center (NHC) posted a supplemental advisory. NHC reports that "extremely dangerous Hurricane Dorian poses a significant threat to Florida and the...
Boulder, Colo., USA: Arctic sea-ice has decreased rapidly during the last decades in concert with substantial global surface warming. Both have happened much faster than predicted by climate models, and observed Arctic warming is much stronger than the global average. Projections suggest that Arctic summer sea-ice may virtually disappear within the course of the next fifty or even thirty years.
Cell particles move more quickly through a crowded cellular environment when the crowding molecules are non-uniformly distributed. New research also shows that particle transport in crowded cells can actually be faster than movement in a non-crowded environment as long as the particles are moving from densely crowded areas to less crowded areas. Understanding the rate at which particles move in...
Late in the prehistoric Silurian Period, around 420 million years ago, a devastating mass extinction event wiped 23 percent of all marine animals from the face of the planet.
Thomas Jones' "universal break-up criterion" won't help with meltdowns of the heart, but it will help volcanologists study changing lava conditions in common volcanic eruptions.
Light and sound waves are at the basis of energy and signal transport and fundamental to some of our most basic technologies—from cell phones to engines. Scientists, however, have yet to devise a method that allows them to store a wave intact for an indefinite period of time and then direct it toward a desired location on demand. Such a development would greatly facilitate the ability to...
A new study published in Geology presents the detailed observation of a tsunami-generating volcano collapse by remote sensing. The paper by Rebecca Williams of the University of Hull and colleagues analyzes the 2018 collapse of Anak Krakatau, which triggered a tsunami that claimed over 430 lives and devastated coastal communities along the Sunda Strait, Indonesia.
An international team of scientists, studying evidence preserved in speleothems in a coastal cave, illustrate that more than three million years ago—a time in which the Earth was two to three degrees Celsius warmer than the pre-industrial era—sea level was as much as 16 meters higher than the present day. Their findings represent significant implications for understanding and predicting the...
Unsure of where Hurricane Dorian might strike, Florida residents watched the increasingly dire forecast with a sense of helplessness Friday and braced for what could be the most powerful storm to hit the state's east coast in nearly 30 years.
The National Hurricane Center (NHC) in Miami reports that an Air Force plane is finding Dorian a "little stronger" as of the 8:00am EDT advisory put out today, Aug. 30, 2019. Data from an Air Force Reserve reconnaissance aircraft indicate that maximum sustained winds have increased to near 110 mph (175 km/h) with higher gusts. That is in keeping with what weather forecasters are predicting for...
A study by Chinese and British scientists that investigates a heavy rainfall event in the Yangtze River Basin at both global and regional scale by using the Met Office Unified Model proves the added value of the convection-permitting model in simulating heavy rainfall event.
Scientists have found that air pollution absorbs and disperses sunlight and thereby reduces the amount that reaches the Earth's surface. The latest study, published in Advances in Atmospheric Sciences on Aug 20, 2019 also reports that the smaller the particles, the more harmful the impacts are.
With the use of ultra-high-speed videography, Ecology and Evolutionary Biology Associate Professor Emanuel Azizi and colleagues from Occidental College Los Angeles have shed light on the hunting mechanism of the cone snail Conus catus. Published online in Current Biology - Cell Press, the researchers identified the snail's hydraulically propelled feeding structure as the quickest movement among...
Thomas E. Angelini, Ph.D., Associate Professor in the Department of Mechanical & Aerospace Engineering at the University of Florida and his research group, the Soft Matter Engineering lab have successfully fabricated living micro-beams from glioblastoma cells and extra-cellular material (ECM) embedded in a packed microgel support medium. They subsequently characterized the physical properties of...
For the past several years, University of Illinois researcher Kyle Smith has proven his growing expertise in the field of water desalination, with a range of research results that could address the immediate need to combat diminishing clean water sources around the world.
For some school children, PE is the best lesson of the week—a chance to leave the desk behind, get outside, and enjoy a run around with friends. For others, it is a frequently miserable experience—a time when they feel degraded, embarrassed, and may even experience physical pain.
In the future, a delayed flight due to ice will be no cause for a meltdown.
Scientists from Tomsk Polytechnic University are studying the mineral glauconite as an eco-friendly and effective alternative to traditional potassium fertilizers exploited in agriculture. Their recent study showed that glauconite-bearing rocks can be as efficient as traditional fertilizers to increase the wheat yield even with minimum soil cultivation. Glauconite also does not leave any harmful...
About 70 percent of the human genome doesn't code for anything. When it's transcribed to RNA—the instructions our cells follow when they make proteins—most of the message doesn't contain any useful information. As West Virginia University researcher Aaron Robart put it, it's "junk DNA."
Across the planet, more than a billion tons of essential, nutritious, life-sustaining food goes to waste each year.
In an unprecedented feat, an American research team discovered hidden secrets of an elusive exoplanet using a powerful new instrument at the 8-meter Gemini North telescope on Maunakea in Hawai'i. The findings not only classify a Jupiter-sized exoplanet in a close binary star system, but also conclusively demonstrate, for the first time, which star the planet orbits.
Researchers from Stellenbosch University, South Africa found that tortoises, one of the main herbivores of the daisies, were unable to distinguish the lower petal surfaces against a green leaf background. Tortoises prefer to eat protein-rich flowers over leaves, but when confronted with closed flowers, they showed no preference between them.