A group of Swedish researchers are looking beyond plants for living models upon which to base their solar harvesting tech, turning instead to the photovoltaic prowess of the jellyfish. Tapping a protein in the jellyfish Aequorea victoria known as green fluorescent protein (GFP), the team has assembled a device that converts ultraviolet light into free electrons using a drop of green goo.
Zoe Donaldson, Yerkes National Primate Research Center, via Science Daily
Man, those scientists just love their glowing lab subjects. First came mice, and then recently the first primates got some jellyfish genes implanted into their DNA. Now, scientists at Emory University have implanted the gene for jellyfish fluorescent protein in prairie voles.
As students everywhere return to school, the luckiest are heading for caves and rocket firing ranges instead of lecture halls
By Rena Marie PacellaPosted 09.09.2009 at 11:08 am 5 Comments
So you want to explore the deepest caves? Design the cars of the future? Fire rockets? Don't wait until you graduate. Here are 10 college programs that offer the most fun per credit—and can help you land your ideal job.
Even though a jellyfish is 90 percent water, it moves at about 40 mph. Jellyfish use their bell -- the top portion, above the tentacles -- to create a jet that propels them through water. Now, scientists at the Chonnam National University in the Republic of Korea have built a robot that mimics the movement. The robot, using an electro-active polymer artificial muscle, retracts and expands its skirt, exerting a minimal voltage and propelling the jellybot faster than you can swim.
Behold Huia cavitympanum: the only frog species that can communicate through ultrasonic calls too high-pitched for humans to hear. Two scientists made the discovery by camping out with recording devices in the frog's native island of Borneo. Bonus points go to the guy who was "bitten by leeches and woke up several mornings soaked in blood."
Also in today's links: a reason to switch up your music, what to do with too many chicken feathers, and more.
It's just after sunset in Long Beach, California, and John Dabiri stands on the end of a wooden dock, peering down at the water. In his white sneakers and striped polo shirt, Dabiri might be just another boater checking out a well-known local spectacle: a pulsing mass of hundreds of softball-size moon jellyfish that regularly gather here.
Robotic jellyfish just like the real thing, but without the sting
By Jessica ChengPosted 07.16.2008 at 4:47 pm 3 Comments
All Together Now
AquaJellies are an experiment to create autonomous robots that can work alone or cooperatively.
AP Photo; Kai-Uwe Knoth
Swimming around in their tank, these autonomous robotic jellyfish move alone or in a swarm and communicate with their brethren to avoid underwater collisions. Developed by German industrial-automation company Festo as an attention-grabbing experiment in cooperative robotics, each AquaJelly uses eight bendable "tentacles" to propel itself forward.
Between massive swarms and habitat invasions, jellyfish are changing ecosystems, stinging beachgoers, and causing millions of dollars’ worth of damage. Using high-tech underwater gadgets, scientists are racing to understand one of the most common, mysterious—and destructive—sea creatures
By Science Illustrated StaffPosted 06.04.2008 at 5:12 pm 19 Comments
Increasing numbers of fishermen's nets are filling with jellyfish, which slime, poison, and crush the intended catch.
For most of us, jellyfish are nothing more than a nuisance. They drift toward beach shores and into our consciousness each summer near the end of their life cycle, making a refreshing dip in the water a bit less carefree for a few weeks. But that may be changing.
Last November, a 10-mile-wide and 42-foot-thick swarm of baby mauve stingers (Pelagia noctiluca) decimated Northern Ireland's farmed-salmon population. Overnight,120,000 fish were reduced to a floating mass of carcasses by billions of the small jellies native to warmer waters thousands of miles to the south. The salmon, which were killed by stings and oxygen deprivation, had a market value of $2 million.
Engineers design a group of autonomous jellies that swim like the real thing
By Gregory MonePosted 04.30.2008 at 8:38 am 4 Comments
At a conference in Germany, engineers unveiled a robotic jellyfish designed to swim—but not sting—like the real thing.
The AquaJelly runs on rechargeable lithium-ion batteries, has a roughly spherical body and uses eight tentacles to get around in the water. The tentacles undulate like the tail of a real fish, and small fins at the ends give the machine a little extra push on the water. To steer, the robot shifts its weight, and it drives around its tank autonomously.