Video: underwater volcano eruption

More than 1,800 feet beneath the Pacific Ocean, the eruptions of an undersea volcano have revealed themselves on film, including the ejection of glowing red lava and the sounds of exploding gases.

“It’s the first place where we’ve been able to observe an active volcanic eruption underwater,” said Bill Chadwick of the Oregon State University Hatfield Marine Science Center in Newport, who led the group that observed the volcano with a remotely operated vehicle.

“Most of the geology that we probably eventually see, a large part of that has happened underwater,” said Michael Perfit, a marine geologist at the University of Florida in Gainesville. “We have to look backwards and try to figure out how it happened. By looking at this, you get a sense of how these very important processes take place.”

The team will return with the remotely operated vehicle next spring to make more visual observations. But the last expedition could be hard to top.

From Discovery Channel: Watch amazing video here

Red Scarlet: 2x higher quality video than HiDef for under $3,000?

There is a digital video revolution underway and RED are leading the way.

We’ve been keeping our eye on these guys from RED for some time since they launched a 4,000 pixel wide format digital video camera (that’s 9 mega-pixel video!!) for under $20,000. Although by the time you add lenses, tripods, digital storage and other accessories you can expect to get closer to $100,000 all-in.

Now RED have announced a smaller 3,000 pixel wide version (a mere 5 mega-pixel!!), called RED Scarlet which should retail at about $3,000. Taking into account lense costs, light accessories, storage and Gates housing (when they get round to producing it), this should price a complete underwater filming rig at around $20,000.

Oh, did I mention it can film at 180 frames per second?

Yeah - bring it on!!

Visit RED’s site

Freeflow tidal turbines to generate 15,000MW in Canada

Hydro Power Without the Dams: Ontario Invests in Free Flow Underwater Turbines.

The Cornwall Ontario River Energy Project - 15 Megawatts

The province of Ontario is investing C$2.2 million into a project to demonstrate the feasibility and commercial viability of using free flow turbines to harness some of the St. Lawrence River’s kinetic energy and turn it into electricity.

This project is for 15 megawatts, enough to power 11,000 average-sized homes, but Verdant estimates that “there is enough potential power in the water currents of Canada’s tides, rivers and manmade channels to generate 15,000 MW of electricity using its technology”. That would be about the equivalent of 15 big coal power plants.

From Treehugger: Read more