When [Electron Impressions] used a powerful ultrasonic array to project a narrow beam of sound toward a target, he described it as potentially useful in getting someone’s attention from across a ...

Directional selectivity is a response that is greater for a visual stimulus moving in one (PREF) direction than for the opposite (NULL) direction, and its computation in the vertebrate retina is a ...

Candy Schaap was a long-time price-action trader in traded futures, options, stocks, and bonds. She co-authored two books about trading and investing. She was a mentor, speaker, and founder of ...

Before replying to a cute Valentine's message, make sure it isn't a scammer trying to steal your cash. Tired of paying for pricey VPNs? With a Raspberry Pi and a bit of know-how, you can host your own ...