Debates over gun regulations make headlines across the world, but there's an underground operation for weapons that has drawn very little attention -- until now. Researchers from Michigan State University crept into the dark web to investigate how firearms are anonymously bought and sold around the world.
A team that studies how biological structures such as cactus spines and mantis shrimp appendages puncture living tissue has turned its attention to viper fangs. Specifically, the scientists wanted to know, what physical characteristics contribute to fangs' sharpness and ability to puncture? They report their findings in the Royal Society journal Biology Letters.
Purdue University researchers have developed a new design method to create soft robots that may help in caregiving for elderly family members.
For this analysis, researchers examined monthly data on US background checks for gun purchases and permits from November 1998 through April 2016, and they looked for purchasing trends after mass shootings during that time. A total of 124 major mass shootings (five or more individuals injured or killed) and nearly 234 million background checks occurred.
At the University of Missouri, researchers in the College of Engineering are applying one of the first uses of deep learning -- the technology computers use to intelligently perform tasks such as recognizing language and driving autonomous vehicles -- to the field of materials science.
UB aerospace engineer James Chen publishes a paper that extends classical kinetic theory into high-speed aerodynamics, including hypersonic speed, which begins at 3,836 mph or roughly five times the speed of sound. The new study and others by Chen in influential academic journals attempt to solve long-standing problems associated with high-speed aerodynamics.
A Purdue University team created a method for applying a designer surface-active agent to the surface of a metal to make it easier to cut and shape the material into parts and pieces.
A new tungsten-based alloy developed at Los Alamos National Laboratory can withstand unprecedented amounts of radiation without damage. Essential for extreme irradiation environments such as the interiors of magnetic fusion reactors, previously explored materials have thus far been hobbled by weakness against fracture, but this new alloy seems to defeat that problem.
During the Vietnam War, United States aircraft sprayed more than 20 million gallons of herbicides, including dioxin-contaminated Agent Orange, on the country's rain forests, wetlands, and croplands. A new article from the University of Illinois and Iowa State University documents the environmental legacy of Agent Orange in Vietnam, including hotspots where dioxin continues to enter the food supply.
Hiding an object from heat-sensing cameras could be useful for military and technology applications as well as for research. Efforts to develop such a method have been underway for decades with varying degrees of success. Now, researchers report in ACS Nano that they have fabricated an inexpensive, easy-to-produce film that makes objects completely invisible to infrared detectors.