您现在的位置是:娛樂 >>正文
【】Light: Science & Applications.
娛樂18人已围观
简介A new camera developed in Sweden is faster than any photography gear on the planet.。Researchers at S ...
A new camera developed in Sweden is faster than any photography gear on the planet. 。
Researchers at Sweden's Lund University built a crazy-fast camera that can capture a staggering five trillion frames per second, or events as short as 0.2 trillionths of one second. Conventional cameras, by contrast, top out at around 100,000 frames per second 。
With the new high-speed film camera, the researchers plan to film rapid processes in chemistry, biology, and physics that are otherwise impossible to capture in photos or videos. 。
SEE ALSO:Scientists store digital files in an unlikely place: DNA 。"Explosions, plasma flashes, turbulent combustion, brain activity in animals, and chemical reactions — we are now able to film such extremely short processes," Elias Kristensson, a combustion physics researcher and co-inventor of the camera, said in a news release. 。
Kristensson and his research partner Andreas Ehn plan to use the camera — called FRAME (Frequency Recognition Algorithm for Multiple Exposures) — to film combustion as it occurs at the molecular level, they said. 。
Combustion is a chemical reaction between a fuel and oxygen, which produces heat. The researchers' ultimate goal is to help make fuel-burning machines (such as car engines, gas turbines, and boilers) more energy-efficient by examining combustion at every fleeting, minuscule stage.。
Thanks for signing up! 。
"In the long term, the technology can also be used by industry and others," Kristensson said.。 The scientists and his colleagues recently published a preview article of the camera technology in the journal 。
Light: Science & Applications. 。
The FRAME camera works differently than more conventional models. Most high-speed cameras capture images one by one, in a rapid sequence. But the Swedish creation uses a computer algorithm that captures several coded images in one picture; those are later sorted into a video sequence.。Elias Kristensson, left, and Andreas Ehn.Credit: Kennet Ruona/university of lund。
To film a scientific process, such as a chemical reaction, the camera exposes it to light by firing off laser flashes. Each light pulse is given a unique code, and the object reflects those bursts of light, which merge into a single photograph. Next, those images are separated using an encryption key.。
The researchers said that in addition to setting a new speed record, the camera is especially exciting because of its ability to film chemical changes in real time. Without this new high speed camera, researchers could only visualize such rapid events by photographing still images of the process, Kristensson explained. 。
"You then have to attempt to repeat identical experiments to provide several still images, which can later be edited into a movie," he said. "The problem with this approach is that it is highly unlikely that a process will be identical if you repeat the experiment."。
The Swedish team said they expect to make more film materials available this fall. Get ready to geek out.。
The Swedish team said they expect to make more film materials available this fall. Get ready to geek out.。
Featured Video For You。
Tags:
转载:欢迎各位朋友分享到网络,但转载请说明文章出处“夫榮妻貴網”。http://new.maomao321.com/news/30c5999910.html
相关文章
U.S. pole vaulter skids to a halt for national anthem
娛樂An American pole vaulter took his patriotism to the next level at the Olympics.。Sam Kendricks, a sec ...
【娛樂】
阅读更多Mall builds real
娛樂With the Pokémon Go fever still shaking half the world, there's bound to be plenty of trainer ...
【娛樂】
阅读更多The U.S. will no longer have the final say on internet domain names
娛樂The National Telecommunications Information Admistration (NTIA) announced via。 blog post 。on Tuesday ...
【娛樂】
阅读更多
热门文章
- Is Samsung's Galaxy Note7 really the best phone?
- Hiddleswift finally followed each other on Instagram after 3 excruciating days
- Cat gets stuck in the most awkward position ever
- Michael Phelps says goodbye to the pool with Olympic gold
- Olympian celebrates by ordering an intimidating amount of McDonald's
- Michael Phelps says goodbye to the pool with Olympic gold
最新文章
Tributes flow after death of former Singapore president S.R. Nathan
MashReads Podcast: What makes a good summer read?
Pokémon Go is so big that it has its own VR porn parody now
Daughter gives her 100
Felix the cat just raised £5000 for charity because she's the hero we all need
Man stumbles upon his phone background in real life