Most aquatic animals propel themselves with a tail or fluke, so roboticists have long been interested in the remarkable speeds possible by mimicking sea lion propulsion with front flippers.
Don’t be fooled by a sea lion’s big, sweet eyes and playful demeanor—these guys move through water like a torpedo. While most animals swim using a tail or fluke, sea lions clap their fore flippers into their bodies to propel themselves to incredible speeds. It’s an elegant, efficient movement that land-dweller Megan Leftwich, an associate professor of mechanical engineering at George Washington University, wants to reproduce in robotic form.
• How Sea Lions Are Inspiring the Future of Underwater Transport (YouTube / Great Big Story)
Sesame Street continues its run of excellent, empathetic new muppets to help kids deal with a changing world: after introducing muppets experiencing homelessness, living with autism, and explaining marriage without recourse to gender norms, the show has introduced a muppet whose mother lost custody of her after becoming addicted to drugs.
Firstsecond (publishers of In Real Life, the bestselling middle-grades graphic novel Jen Wang and I made) have just revealed the cover for Poesy the Monster Slayer, my first-ever picture book, illustrated by Matt Rockefeller and scheduled for publication in July 2020.
Vaping giants like Juul attracted billions in investment from tobacco companies by reversing decades of progress in weaning children off of nicotine, thanks to deliberately targeting children with advertisements and phony in-school "mental health" seminars that advised them to take up their carcinogenic, highly addictive products.
There’s overwhelming support for clean energy, and the planet is giving us more reasons to invest in renewable power sources with every passing year. Even in the most inhospitable areas, wind and solar can provide a good chunk of our power, if not all of it. So why aren’t we all taking advantage of it? […]
Hey, we love Netflix and Hulu, but let’s face it: The whole setup doesn’t exactly encourage active viewing. For all the binge-watching we’ve done, it’s tough to expand our horizons or learn anything new – except for how many episodes of “The Office” it takes to make us fall asleep. It was only a matter […]
Still using elbow grease to clean the sinks, tubs and other grimy surfaces around your house? Save your elbows, and some time. If you’ve got a power drill, the RevoClean® 4-in-1 Drill Brush Cleaning Kit will instantly turn it into a professional scrubber that can tackle any stain on any surface. Attach the 4″ nylon […]