Peake's team joined researchers from Virginia Tech, Lehigh and Florida Atlantic to examine why owls can fly so silently. Peake said:
No other bird has this sort of intricate wing structure. Much of the noise caused by a wing – whether it’s attached to a bird, a plane, or a fan – originates at the trailing edge, where the air passing over the wing surface is turbulent. The structure of an owl’s wing serves to reduce the noise by smoothing the passage of the air as it passes over the wing – scattering the sound so their prey can’t hear them coming.
Université de Sherbrooke engineers demonstrated a wearable robotic third arm that weighs about the same as a human arm. According to Evan Ackerman writing in IEEE Spectrum, waist-worn hydraulic limb “is gentle enough to pick fruit but powerful enough to punch through a wall.” From his interview with project lead Catherine Véronneau: IEEE Spectrum: Can […]
The best solutions are sometimes the simplest ones: “I’ve been topping off a leaky tire for weeks and staring at my garden hose wondering if I could use it instead of my compressor. The answer is YES!!!”
“The guitar has a kind of grit and excitement possessed by nothing else.” – Brian May If someone was assigned to turn raw sexiness into an actual, physical real-world object, it would have to be a guitar. The sound. The fit. The swagger. The allure. The longing. It’s all right there in 38 inches and […]
There was already enough concern about the healthy state of our drinking water before COVID-19. And while there’s no evidence that the coronavirus has ever been detected in the water supply, the general sense of fear surrounding any type of contamination is obviously at a fever pitch everywhere. Contaminants like lead, chromium, arsenic, copper, mercury, […]
Allergies are brutal, affecting about 30 percent of all American adults. While many only saddle sufferers with mild irritations like coughing, sneezing, a runny nose or watering eyes, some symptoms can be even more intrusive and significantly more painful. Sinus pressure is one of those unholy side effects, causing a pain that can stretch from […]