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computer electronic news photo science video

Self Powered Camera

self powered camera

Last year researchers at Columbia came up with a camera that was self-powered.  Using the energy from light itself the camera’s sensor, they not only record an image, but power the camera completely.  They say this was achieved with regular off the shelf items, and I pretty much believe that.  But it’s quite a long way away from becoming something useful.  The camera only produces an image in the resolution of 30×40 pixels, which as you can see below, is pretty poor by our super quality 8k screens.  Additionally, it works best indoors in well lit environments.  For less then ideal conditions, or varying conditions, they came up with an algorithm to modulate the recording speed of the camera.

I think this could have potential, but like I said, it’s quite a few years away from being useful.  Too bad too, as I could totally use it in my 12 day stint in the middle of Alaska, which is where I currently am right now…

{The Verge|Eureka Alert}

Categories
DIY photo science

IMPACT!1!

Impact Crater

Have you ever wondered what happens underground when you drop something.  Or when a meteor, or comet, or missile impacts the surface of the planet (when it even makes it to the planet’s surface that is)?  I mean, the surface of the earth is easy, we have a couple of decades of nuclear blast testing to show that.  But the underground effects, those are alittle harder to see.  Yes, we did do some underground nuclear tests, but those were mostly to just confirm that the bombs worked.

Well, scientists have done experiments to show what goes on.  Using a high speed camera and special polarizing lenses and beads, we can see how the initial impact of a round projectile (more commonly called a ball), dropped effects the surrounding areas.  It’s neat the way the force slowly (or super quickly actually), snakes its way out across the surrounding beads.  The beads work by changing color (behind a polarizing lens) when they are under stress.  So it’s easy to see what’s happening.

Here’s a video showing the above breakdown in a better format:

{Science World Report|Duke|Paper}