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How Measles Made a Comeback
> It's astounding the number of people I know who are normal,
> rational even scientifically minded folks
who trust everything the US pharmacological industry has to sell
How To SteamPunk Anything - Nerf Gun
*doublepromote
Why do competitors open their stores next to one another?
Explain ABC stores in Honolulu now. Teddy was cloned and an army of Teddy was pacified through the promise of retail sales.
Inside a Camera at 10,000fps - The Slow Mo Guy[s]
Canon manages it by strobing the flash repeatedly though the moving slit. This is called HSS flash as I recall.
It lets you shoot super fast exposures, get huge apertures and still use some fill.
And that's why you have a slowest "flash sync speed" - if you shoot at faster shutter speeds than the flash sync speed (typically 1/200s-1/250s), the whole sensor wouldn't be exposed at once, and the lower part of the frame would be dark.
*related=http://videosift.com/video/High-Speed-video-of-Canon-DSLR-Shutter-Smarter-Every-Day
*related=http://videosift.com/video/Ultra-High-Speed-Video-of-Nikon-D3-Shutter-Action
The geometry of a movie scene
Oh come on now, what about the rectangles of the bookshelves, the triangle of the table with the men in a row on top, the man talking with 1/3 of the chalkboard at left and 2/3 at right.... you can find these geometric shapes in any scene.
Inside a Camera at 10,000fps - The Slow Mo Guy[s]
In one example (I hunted out in the video) at 1/1000th second the front curtain is moving faster than the rear curtain and looks like it would overexpose the bottom of the frame slightly.
What are those floaty things in your eye? (TED-Ed lesson)
@Fairbs I have good days and bad days with them... but the good days are when I am inside not looking at blue skies : ) Or snowy fields, that can be bad. I actually switch my videosift to black and for my job (as software developer) I switch my editors to black backgrounds also. This minimizes their appearance.
For telescopes and microscopes , I use binoviewers which dramatically reduce the perception of floaters as two eyes are averaged out.
What are those floaty things in your eye? (TED-Ed lesson)
Mine are like this in both eyes:
http://www.barransclass.com/phys1090/circus/Gillespie_B/EyeFloaters2.jpg
I got them all 15 years ago when an insanely powerful flash discharged right in front of my eyes. (INSTANT pain ON) Over the next few days my eyes filled with them.
When I look at highly collimated light (like a powerful view in a microscope or telescope) I can see ALLLLL of them swimming in 3D.
A bright sunny day blue sky is like looking through egg whites.
11 Foods You Didn't Know Grew Like That
Where do Burrito Supreme come from ?
How To Grill A Rib-Eye
*cooking
starfish are dying on both coasts
just got back from Maine.... someone there who has lived their whole lives in Maine says the lobsters are leaving Maine waters, moving North. things are changing
How a nuclear reactor works - told simply
I still don't get how they can cut all those rubber bands continuously while underwater at 300 C
oritteropo (Member Profile)
awesome!!! I had a tour of the Subaru Telescope in Hawaii this past Summer and these things are just huge and amazing. Very similar scope.
Did you see this one inside a big telescope starting up?
http://videosift.com/video/Inside-an-Opening-Telescope
lucky760 (Member Profile)
hey there RS
did you make any changes recently? All vids are BLACK for me now, only on this site. On YT directly, they work. I have even gone as far as reinstalling flash the latest.
How Wolves Changed Yellowstone National Park
in 19 yrs this happened?