The black hole at the centre of our galaxy, Sagittarius A*, has been visualised in virtual reality for the first time. The details are described in an article published in the open access journal Computational Astrophysics and Cosmology.
Marvel comics superheroes Ant-Man and the Wasp possess the ability to temporarily shrink down to the size of insects, while retaining the mass and strength of their normal human bodies. But a new study suggests that, when bug-sized, Ant-Man and the Wasp would face serious challenges, including oxygen deprivation. Those challenges, along with their solution-microfluidic technologies, will be described at the APS Division of Fluid Dynamics 71st Annual Meeting, Nov. 18-20.
An unexpected twist from fastball can make the difference in winning or losing the World Series. However, 'some explanations regarding the different pitches are flat-out wrong,' said Barton Smith, a professor of mechanical and aerospace engineering at Utah State University who considers himself a big fan of the game. He and Nazmus Sakib are conducting experiments to explain how baseballs move. Sakib and Smith will present at the Division of Fluid Dynamics Meeting, Nov. 18-20.
Urinating into a cup may sometimes be a medical necessity, but it's often uncomfortable, embarrassing and messy -- especially for women. But what if there were a way to comfortably provide a sample without the splashback? Researchers created experiments using an anatomically correct female urethra that produced a jet of water with pressure and flow equivalent to what a human bladder produces. During the Division of Fluid Dynamics 71st Annual Meeting, they'll describe their findings.
Nature is full of examples of large-scale collective behavior; humans also exhibit this behavior, most notably in pelotons, the mass of riders in bicycle races. Using aerial video footage of bicycle races, researchers analyzed peloton motion to determine what causes changes in the group's large-scale collective behavior and found that riders move through the peloton in a manner similar to circulation in a fluid.
How do wombats produce cube-shaped poop? Patricia Yang at Georgia Tech set out to investigate. Yang studies the hydrodynamics of fluids, including blood, processed food and urine, in the bodies of animals. She was curious how the differences in wombats' digestive processes and soft tissue structures might explain their oddly shaped scat. During the APS Division of Fluid Dynamics 71st Annual Meeting, Nov. 18-20, Yang will explain findings from dissecting the alimentary systems of wombats.
Using a highly-detailed musculoskeletal model of an echidna forelimb, Harvard scientists are not only shedding new light on how the little-studied echidna's forelimb works, but are also opening a window into understanding how extinct mammals might have used their forelimbs.
For half a century, researchers have seen loops of displaced atoms appearing inside nuclear reactor steel after exposure to radiation, but no one could work out how.
Lowering mutation rates in harmful bacteria might be an as yet untried way to hinder the emergence of antimicrobial pathogens. One target for drug development might be a protein factor, DNA translocase Mfd, that enables bacteria to evolve rapidly by promoting mutations in many different bacterial species. This action speeds antibiotic resistance, including multi-drug resistance. Working on drugs to block Mfd and similar factors could be a revolutionary strategy to address the worldwide crisis of treatment-resistant infectious diseases.
Researchers at Idaho National Laboratory have discovered how to make 'superalloys' even more super, extending useful life by thousands of hours. The discovery could improve materials performance for electrical generators and nuclear reactors.