Hippos get airborne at top speed, and we've somehow only just found out

[New Atlas logo]( Biology [Hippos get airborne at top speed, and we've somehow only just found out]( [The hippo is not the easiest animal to get close to, so the scientists used recorded footage and observations from afar]( For the first time, scientists have discovered that hippos get significant airtime when they're at full-trot, able to lift their huge barrel-shaped girth off the ground for around 15% of their stride. It's totally unique for mammals their size. [Read more]( Special Promotion for New Atlas Readers [Breathe easier with this air quality hub for 200 devices, only $99.99]( You may not be able to identify the funk in the air, but an Air Quality Monitor can. The BREATHE Air Monitor analyzes your local air quality across up to 200 devices, and you can get it on sale for only $99.99 instead of $149. [Read more]( Bicycles [Tiny ebike motor disappears into frame but still kicks out bulk power]( [At just 2.5 kg, the ultra-compact ZF CentriX motor fits neatly in the bike frame, but its 600 watts and 90 Nm of torque are sure to be felt]( ZF is best known as an auto tech and supply company, but it's ready to grow its name in ebikes. Its new 48V drive is centered around one of the most compact, inconspicuous electric motors in the bike game and still boasts serious power and torque. [Read more]( Space [SpaceX's first Polaris Dawn mission to launch after July 30]( [Artist's concept of the first commercial spacewalk]( The first commercial spacewalk mission looks to be back on schedule with Polaris Dawn saying that it will launch no earlier than July 31, 2024. The Dragon spacecraft is slated to carry the four-person crew farther from Earth than any mission in over 50 years. [Read more]( Energy [World's biggest geothermal power purchase agreement now in the bag]( [Fervo's geothermal plant can provide continuous clean power, even when the conditions aren't ideal for solar or wind solutions to operate]( Just a year ago, Fervo Energy successfully demonstrated the effectiveness of its horizontally oriented geothermal system. Now the company has landed a massive contract for providing its clean, virtually endless power to the California grid. [Read more]( Medical [Ozempic associated with up to 7x increased risk of rare ‘eye stroke’]( [Semaglutide (Ozempic, Wegovy) has been associated with an uncommon form of blindness]( Being prescribed the popular drug semaglutide for diabetes or weight management is associated with an increased risk, up to 7%, of developing a relatively rare form of untreatable blindness, sometimes referred to as an 'eye stroke,' a new study has found. [Read more]( Biology [Giant swamp monster was a top predator before the dinosaurs]( [An artist's impression of Gaiasia jennyae, a gigantic amphibious swamp monster from the Permian]( Long before dinosaurs roamed the Earth, another giant predator claimed the top spot in its environment. Meet Gaiasia, a huge salamander-like creature that stalked the Permian swamps. [Read more]( Aircraft [Autonomous EHang eVTOL jumpstarts nascent pilotless air tourism industry]( [EHang EH-216S eVTOLs will soon be a common site in the air space above Chinese cities and tourist destinations]( Imagine stepping into an empty aircraft and soaring through the air to take in the scenery ... without a pilot. EHang is determined to make that a near-term reality. It recently hosted an event to demonstrate the forthcoming travel alternative. [Read more]( Medical [Sleep studies simplified: Gold-standard results with far less wiring]( [A new sleep study method does away with the traditional mess of wires and electrodes]( Sleep studies provide a lot of important information but aren’t very patient-friendly. So, researchers redesigned the process, eliminating the multitudes of wires normally used while producing results that are on par with the current gold-standard method. [Read more]( Bicycles [Cargo ebike auto deploys landing gear to prevent low-speed wobble]( [Stabilizing wheels on the underside of the cargo box are deployed automatically when the rider brakes for low-speed travel]( Cargo ebikes can be a great alternative to the family car when hauling groceries or doing the school run. But they can be a bit wobbly at slow speeds. Startup Tarran is aiming for improved stability with auto-deploying landing gear. [Read more]( Motorcycles [The 2024 Magnolia 4 ... an enduring love letter to all things mechanical]( [The Magnolia 4 is an enduring love letter to all things mechanical]( JT Nesbitt has already created a string of iconic motorcycles at his own Bienville Studios and previously at Curtiss Motorcycles. His latest 12-only, $200,000 Magnolia 4 aims to reimagine the traditional American inline 4, but not all is as it seems. [Read more]( Physics [World's most accurate atomic clock off by 1 second every 30 billion years]( [Scientists have created the most accurate atomic clock to date, which would only be out one second every 30 billion years]( Scientists have developed the most accurate atomic clock – if you ran it for twice the current age of the universe, it would only be off by one second. This could not only improve services like GPS, but help scientists probe how gravity affects time. 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