قالب وردپرس درنا توس
Home / Science (page 1344)

Science

Engineers create funny four-winged flapping drones inspired by bird wings

We have developed four-winged bird-like robots, called ornithopters, that can take off and fly with agility from swifts, hummingbirds and insects. We did this by reverse engineering the aerodynamics and biomechanics of these creatures. Our ornithopters have the potential to outperform and outmaneuver existing drone configurations with static wings or propellers. What are ornithopters? Ornithopters are flying machines based on …

Read More »

Hawaii Telescope spots a foot asteroid 65 feet before it flew through Earth – Hawaii News Now

Hawaii telescope spots 65-foot-long asteroid before it flies through Earth Hawaii News Now Schoolgirls In India Discover Earth-bound ‘Asteroid’ Big News Network Asteroid to pass close to Earth today Hawaii Tribune-Herald (subscription) School girls in India discover earth-bound asteroid WION Schoolgirls in India discover earth-bound asteroid bdnews24.com Show full coverage on Google News Source link

Read More »

UFO sighting: ‘Black cube’ around the sun could be proof of NASA coverage – claim | Weird | news

The original photos from NASA have no black cubes, which seem to be painted in heavily pixelated sections of the image. These anomalies can be explained by lens flares, camera focus errors or pixelation caused by digital image processing. Mr Brando told Express.co.uk: “Someone painted a simple picture artifact.” Most UFO sightings can also be explained by an effect known …

Read More »

China fears: Scientists warn volcano extinct for 500,000 years ‘Appears to recharge’ | Science | news

Scientists from the University of Science and Technology of China have studied the Vaishan volcano – located within Vudalianchi volcanic field of the northeast of the country. The volcano last erupted around 500,000 years ago, but there have been other, much more recent eruptions in the complex. The volcanic field Vodalianchi covers around 193 square miles and contains 14 steep-sided …

Read More »

Carbon emissions chill the atmosphere 90 km above Antarctica

While greenhouse gases are warming the surface of the earth, they also cause a rapid cooling far from us, at the edge of space. In fact, the upper atmosphere about 90 kilometers above Antarctica is cooling at a rate 10 times faster than the average warming on the planet’s surface. Our new research accurately measured the cooling rate, and revealed …

Read More »