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Busl Quills: A Hollywood Homage to the Marquis de Sade
This is incredible. NASA has just released a never-before-seen video of a solar eruption from July of las stanley cup becher t year that shows a solar flare, a coronal mass ejection, and loops of solar rain all occurring in one breathtaking sequence. The eruption started on July 19, 2012, when a moderately powerful solar flare burst from a magnetically active region on the Sun lower right limb, emitting light and radiation over the Sun surface. It was followed by a coronal mass ejection, a roiling whip of energetic plasma that flies from the Sun in a violent burst of charged particles. Then came the coronal rain, a stunning display whereby ejected plasma cools and condenses along otherwise invisible lines of magnetic fields. As the charged plasma traces it stanley quencher s way along the lines, it reveals itself to NASA Solar Dynamics Observatory at the extreme ultraviolet wavelength of 304 Angstrom, which, according to NASA, corresponds to solar material at a temperature of around 50,000 Kelvin that close to 90,000 degrees Fahrenheit, for those wondering . Bear in mind that this video is, in fact, a timelapse. SDO collected one frame every 12 seconds. The movie is presented here at 30 FPS, so every second corresponds to six minutes of real time. Really remarkable stuff 鈥?another great treatment from the folks at NASA Goddard Scientific Visualization Studio. [NASA] Astr stanley italia onomyNASAScienceSolar flareSpace Ilqj The sticky truth about Spider-Man s 8220;web 8221;
Scientists have developed a technique that uses an inkjet printer to make la stanley botella sers鈥攚hich could lead to a future filled with cheap laser-driven displays and smart surfaces. A team of scientists from the University of Cambridge has used liquid crystals in place of ink in order to print tiny dots onto a specially coated surface. Once everything dries, the dots become lasers. So how the hell does that work Well, the researchers already knew that liquid crystals鈥攖he same ones that are used stanley cup becher in the screen you ;re probably reading this on鈥攃an be used to make lasers, but only if the crystals are forced to align properly. Usually, that means pouring the liquid crystal between two glass sheets, coated in molecules that force the crystals to align. Instead, the Cambridge researchers have used inkjet printers to carefully deposit the same crystals on a surface coated with a polymer solution similar to PVA glue. Incredibly, that enough to align the crystals in the same way as previous approaches. The finding is published in Soft Matter. The result is large sheets covered in tiny dots which act as lasers. You can produce hundreds and thousands of small lasers in one step, using technology not very different to the one you use t stanley thermos o print letters and holiday photos at home, Damian Gardiner, one of the researchers, told the BBC. In the future that means you can expect to see entire surfaces appearing鈥攔elatively cheaply鈥攃overed in tiny laser dots. Whether they ; |
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发表于 2024-12-30 01:57:25
发表于 2024-12-30 01:58:38