A conceptual design for a London skyscraper by Paris studio Chartier-Corbasson Architectes proposes using waste generated by workers already in the building to help construct new floors as demand grows.
For decades, flower hat jellyfish managed to keep their early lives a secret.
In adulthood, the jellyfish are striking, with a nest of fluorescent tentacles that look like party streamers, but pack a nasty sting. In infancy, well, scientists didn’t know. Aquarists tried, unsuccessfully, to raise the animals in tanks to understand what happens before the jellyfish are fully grown.
"They just aren’t like other jellies," said Wyatt Patry, senior aquarist at the Monterey Bay Aquarium in California.
Now, Patry and colleagues report they’ve finally raised the jellyfish in captivity. In a new paper, the researchers describe the elusive species’ life cycle, from egg to larva to single-tentacled polyp to juvenile to adult.
Scientists at the aquarium first bought a group of flower hat jellies back from Japan in 2002 for an exhibit on jellyfish. At the time, aquarists tried to mate and culture the species (scientifically named Olindias formosus), but they just couldn’t seem to get the jellies to release any sperm or eggs.
Patry said the researchers tried performing in vitro fertilization and exposing the jellies to stresses that might make them release sex cells. The creatures produced some larvae, but they didn’t grow much larger than that stage. Ultimately, it seemed that the scientists were missing some cue the jellyfish needed for reproduction.
When it came time for another jellyfish show in 2012, the team tried again. They kept groups of flower hat jellies in small tanks with mesh netting to keep the creatures off the bottom, where detritus and rotting pieces of half-eaten fish settled. The scientists don’t exactly know what they did right the second time around, but during routine maintenance, they discovered fluorescent jellyfish polyps attached to the wire mesh and glowing under a blue light.
Jellyfish larvae attach themselves to a solid surface and become stalklike polyps, which then bud into juvenile “medusae” — what jellyfish are called when they reach their most recognizable, umbrella-shaped form. Jellyfish polyps persist for an unknown amount of time. The polyps of flower hat jellies were unusual in that they had a single, highly active tentacle.
"They just look like little sea anemones," Patry told Live Science. "They seem to use the tentacle to sweep around their position to capture food."
Patry hopes the new information might help scientists and wildlife managers look for the species in the wild — and predict when and where “blooms” of the jellyfish could affect beachgoers.
Flower hat jellies kill and eat entire fish, and their venom is powerful enough to inflict a painful rash on humans. The mark looks like a burn, said Patry. (Take it from him. He said he usually gets stung a couple of times a year.) A 2007 review of jellyfish incidents recorded around the world found one death associated with flower hat jellies, in Japan in the 1970s.
The findings on young flower hat jellies were published in June in the Journal of the Marine Biological Association of the United Kingdom.
Skyscrapers don’t build themselves, but the designers at French architecture firm Chartier-Corbosson might have come up with the next best thing: London Organic Skyscraper, if realized, would constantly grow using, as building material, the recycled waste of its residents.
(I left out a couple parts for clarity, where towards the end they add wax and fillers, though please watch the video. It’s beautifully shot and goes into more detail,..)
(plus it has epic orchestral music in the background which makes any learning experience more badass).
With 7,000 wind power employees, Germany’s windiest area, Schleswig-Holstein, should achieve 100% renewable electricity sometime this year. That’s up from 30% just eight years ago and it’s not stopping there. The region has a lofty goal of eventually generating 300% of its electricity consumption with renewables – selling what it doesn’t use back to the German grid. Read more about it here @ Clean Technica via The Climate Reality Project
Could this be the future of agriculture?
A physiologist has turned a former semiconductor factory into one of the world’s largest indoor farm, cultivating lettuces with LED lights.
At almost half the size of a football pitch, the farm, which opened in Japan in July, is already churning out 10,000 lettuce heads a day, the brains behind it say.
Plant physiologist Shigeharu Shimamura wanted to explore ways that man could keep up with the ever-increasing food demand while bypassing the risks brought on by drought, crop disease and natural disasters.
“I knew how to grow good vegetables biologically and I wanted to integrate that knowledge with hardware to make things happen,” Mr Shimamura said.
The climate controlled room is powered by LED fixtures that emit light at wavelengths – the most ideal for plant growth – while also giving the ‘farmers’ power to control the night and day cycles.
Have we mentioned that we asked some of our favorite educators and staff to weigh in on the best books for students, teachers and all other summertime scholars to crack into during the break? Check out our summer reading recommendations!
From the TED-Ed lesson The contributions of female explorers - Courtney Stephens
Animation by Lizzi Akana
I really want a tattoo of an octopus and i kind of want the primal look and cool coloration on the third one, but i like the head and legs of the second one and i like the positioning and eyes of the first one. i know its a lot to ask but if a random artist wants to maybe do a thing and put these together id love you