The wheel isn’t cheap. You can buy a bike with a wheel attached for $2,000. Superpedestrian offers 18 different frames from five different brands. You can also purchase just the wheel for $1,500, which would put the cost at the low end of most electric bikes. It can be sized to fit any adult bike, but it doesn’t work with disc brakes. That’s a nice option if you have a frame you particularly love but want to upgrade to an e-bike. It also gives you the option to use the wheel for long trips and an ordinary tire for your average commute. … [Read more...] about Copenhagen Wheel review: a bike that makes you feel like a superhero
The mummy also went for its first CT scan at the Carle Foundation Hospital in Urbana, Ill. A CT scan creates slicelike images of bone and soft tissue using X-rays; this technique allowed researchers to build three-dimensional reconstructions, including a digital reconstruction that allowed researchers to look through the mummy's interior, in a sort of virtual autopsy, all the way down to a wooden board under the body. … [Read more...] about Sex of Egyptian Child Mummy Remains a Mystery
SpaceX successfully test-fired the Starship SN4 vehicle yesterday as part of its preparations for an upcoming launch test that could have carried the rocket about 500 feet (150 meters) up. That same day, SpaceX received a launch license for its Starship tests from the Federal Aviation Administration. … [Read more...] about SpaceX’s Starship SN4 prototype explodes after rocket engine test
What scientists don't know is why something as ubiquitous as pollen makes so many of us sick. Allergies could be a byproduct of the way our immune system evolved: annoying, but not so detrimental that natural selection deletes the genes responsible. Another theory, dubbed the "hygiene hypothesis," notes that people in areas rampant with parasite infections have low allergy rates. IgE antibodies help defend the body against parasitic worms, the theory goes, so perhaps by curing ourselves of parasites, we've freed IgE to run amok, overreacting to every grain of pollen. … [Read more...] about Record-Breaking Pollen Counts Fuel Miserable Allergy Season
"You know what I think of? I think of Peter Fonda in "Easy Rider" riding a chopper," astronaut Michael Massimino said of his preferred space toilet position, holding his arms up to grip the handles of an imaginary motorcycle. "That's the right position for me." … [Read more...] about How Do Astronauts Go To the Bathroom in Space?