Light powers everything from communications to sensing, yet even tiny imperfections can scatter it and weaken signals. To address this, a team led by the University of Bath—working with the University ...

Every winter Yosemite National Park becomes the stage for one of nature’s most riveting optical illusions: a magnificent waterfall that for a brief moment appears to be made of pure golden fire.

Hoverflies are known for their sexually dimorphic visual systems and exquisite flight behaviors. This valuable study reports how two types of visual descending neurons differ between males and females ...

The old maxim “Buy low, sell high” has a cash-flow corollary: “Collect early, pay late.” But it is possible for companies to overdo a good thing. Sometimes the cash-flow benefits of paying late are so ...

Normal, physiologic, autoregulated blood flow to the brain is central to essentially all aspects of human health, and when it goes wrong, the results can be catastrophic. However, due to our thick ...

This is a primal movement beginner video where I demonstrate some simple movements and a flow you can use to start natural movement training. The first part is a tutorial of various positions and ...

Setup of the laser speckle contrast optical spectroscopy system used to monitor scalp and brain blood flow during temporary blockage of a major scalp artery near the temple. WASHINGTON, Oct. 21, 2025 ...

Measuring blood flow in the brain is critical for understanding response to a range of neurological problems, including stroke, traumatic brain injury (TBI) and vascular dementia. Obtaining such ...

What is it about a walk that’s so refreshing? It always feels like the perfect thing to do when you’re worried, stressed, overwhelmed, or trying to weigh a big decision. The moment you pop in your ...