In winter, the air temperature above the sea ice can be below -20C, whereas the sea water is only about -1.9C. Heat flows from the warmer sea up to the very cold air, forming new ice from the bottom. The salt in this newly formed ice is concentrated and pushed into the brine channels. And because it is very cold and salty, it is denser than the water beneath.
The result is the brine sinks in a descending plume. But as this extremely cold brine leaves the sea ice, it freezes the relatively fresh seawater it comes in contact with. This forms a fragile tube of ice around the descending plume, which grows into what has been called a brinicle.
Check out that BBC website link for more information on how the Frozen Planet videographers captured this footage. That's also where you should go to watch the video when this YouTube version is inevitably taken down.
On August 3 in celebration of the 40th anniversary month of the Voyager interstellar mission, please join me at San Francisco’s Exploratorium to experience the Voyager Golden Record with two of the brilliant minds behind it — SETI pioneer Frank Drake and science writer Timothy Ferris. In August and September 1977, NASA launched two spacecraft, […]
The Chinese government’s wish-list for AI researchers is pretty ambitious: “Breakthroughs should be made in basic theories of AI, such as big data intelligence, multimedia aware computing, human-machine hybrid intelligence, swarm intelligence and automated decision-making.”
A scrap dealer cleaning out a deceased engineer’s basement in Pittsburg, Pennsylvania found two massive 1960s computers, magnetic tape data storage systems, and hundreds of tape reels, all of which was marked as the property of NASA. The scrap dealer called NASA to report what he found and the agency’s Office of the Inspector General […]
Whether you’re a seasoned entertainment industry veteran or a student working on your first spec script, having the right tool for the job will make a huge difference in your focus and productivity.Final Draft 10 is far and away the world’s best screenwriting software, used extensively by professional film and TV writers at top production […]
Web content creators who don’t have a solid SEO strategy should take note of Webtexttool. It’s a service that pulls in anonymous data from their entire user base to offer crowdsourced guidance that increases your search page ranks. By analyzing prior user successes, it helps you better gauge how your posts will perform at a […]
Just because English has become the common global tongue doesn’t mean it’s the easiest language to write—even for native speakers. If you’re looking to improve your written communication skills, especially on your smartphone, take a look at Ginger Page.Ginger is a cross-platform app that offers corrections for phrasing as well as grammar. It’s powered by […]