Light is an astonishing phenomenon that has been the center of thousands of studies for a long time. Now, thanks to a MIT research team, we have a great opportunity to better understand it and see its properties with our bare eyes.
A photograph of the super fast camera.
The team designed a camera that is capable of filming light as fast as it travels. It converts nearly a one Nanosecond into 20 seconds of filming. You will now be able to watch light in an incredibly slow motion that no one could ever dream of.
« We have built an imaging solution that allows us to visualize propagation of light. The effective exposure time of each frame is two trillionths of a second and the resultant visualization depicts the movement of light at roughly half a trillion frames per second. Direct recording of reflected or scattered light at such a frame rate with sufficient brightness is nearly impossible. We use an indirect ‘stroboscopic’ method that records millions of repeated measurements by careful scanning in time and viewpoints. Then we rearrange the data to create a ‘movie’ of a nanosecond long even. »
The camera uses a system of mirrors, a periodic emission of a laser beam and an ultra-high speed camera. The invention shoots 2 trillion frames per second, capturing photos of the laser beam in precise moments of several laser beams. This results in an exact simulation of the propagation of one single beam of light.
This technology can give people a better understanding of the ultrafast process and a greater, better power of image processing and 3D simulation.
Watch the video below, to see how ingenious and astonishing, the results, are:
Here is the official website of the research team, check it out for more informations :
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5 Amazing Facts About Dreams !
The Dream is an eye-opening, and sometimes a nightmarish, journey to another world related to ours, new faces, new places, mysterious images and many questions but no answers.
Dreams are all of that and much more. Here are 5 Amazing facts about dreams that’ll make you Surprised !
Fact #1: You can’t read anything while dreaming, or even tell what time it is :
Sometimes you are unsure if you are dreaming or not, the easier way is to try reading something. Try to create a book in the dream and read its first lines. Well mostly you will fail and the majority of people can not read in their dreams !
The same goes for time. Each time you try to look at clock and know the time, you will get a different time and it will not be clear. Does that mean that there is no Time in the dreams ? or is Time just a river in the dreams ! Let me know what do you think !
Fact #2: Lucid dreaming
There is a whole subculture of people practicing what is called lucid or conscious dreaming.
There are many techniques and ways to learn how to control your dreams. Many people have this skill and can make amazing things like flying, swiming, visiting many places and creating many new dimentions !
Next time, we will talk more about these techniques !
Fact #3: Inventions inspired by dreams
As I told you, dreams can be a door to another world. This door is a great source of inspiration and innovation and there are many example among the greatest inventions of mankind :
The idea for Google -Larry Page
Alternating current generator -Tesla
DNA’s double helix spiral form -James Watson
The sewing machine -Elias Howe
Periodic table -Dimitri Mendeleyev
…and many, many more.
Fact #4: Premonition dreams
In this case dreams open a door for the future , there are many people who dreamt about things which happened to them later, exactly as they saw in their dreams !
You could say they got some signs from the future or it might just have been pure coincidence. That’s really interesting . How can they know about their future !
Some of the most famous premonition dreams include:
Abraham Lincoln dreamt of His Assassination
Many of the victims of 9/11 had dreams warning them about the catastrophe
Mark Twain’s dream of his brother’s demise
19 verified precognitive dreams about the Titanic catastrophe
Fact #5 Unbelievable sleepwalkers
Sleepwalking is a very rare and potentially dangerous sleep disorder.
It is an extreme form of REM sleep disorder, and these people don’t just act out their dreams, but go on real adventures at night.
If you see someone who has this issue, don’t be afraid and try to wake him up and he will be back to the normal mood. Be careful because He can commit suicide or jump from his window when he is sleeping. So wake him up or make sure that he is back to his bed !
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