We all remember The Matrix and Neo dodging bullets. It inspired many enthusiasts to create the bullet time effect on the budget, and there have been some pretty creative solutions. Photographer and filmmaker Daniel DeArco has made the world’s fastest camera slider, which alone is pretty impressive. But he also paired it with slow-motion shooting, in order to get the effect similar to the bullet time. The result is awesome, and he shares some sample shots and the BTS video.
High-speed cameras are certainly useful for slow motion, but they can also find their application in science. Elias Kristensson and Andreas Ehn, researchers at Swedish Lund University, have revealed the world’s fastest high-speed camera. It’s able to capture as many as five trillion frames per second. This sounds astonishing only when you try to read this number, and what’s especially impressive is that camera can visualize the movement of light. It can capture the events as short as 0.2 trillionths of a second.
To demonstrate the speed of this camera, the researchers filmed a group of photons. They are traveling a distance of a paper’s thickness at 671 million mph. Yet, this camera makes it seem as if they’re moving slowly.
According to theoretical physics, nothing is faster than the speed of light. However, now you can see with your own eyes the first ever recording of a “sonic boom” – created by light. Or scientifically called a photonic Mach cone. It was recorded by researchers at Washington University in St. Louis, and they used a custom high-speed camera to make the footage.
You’ve heard about sonic booms, and you’ve probably heard one at least once. They occur when an object exceeds the speed of sound. But if nothing is theoretically faster than light – how did they do this? In the description, the setting seems simple, and they built the custom high-speed camera – the fastest one in the world.
We’ve posted about the Chronos high speed camera a couple of times before. We mentioned how it smashed through its kickstarter goal in less than 24 hours. There’s still three weeks left of the campaign, but several units have been sent out for testing and review. One of those is Ben Krasnow, of YouTube’s Applied Science channel.
In a video uploaded to the channel a few days ago, the Chronos is mounted to a DIY motion control rig that pivots around a central point. This creates for an amazing slow motion bullet time style effect.
The humble spud gun, which may or may not be illegal to actually use, own or even make where you live, is a wonderful thing. Packed into this potato launching barrel of fun, however is a lot of very cool looking science.
A month or so ago, Destin Sandlin of YouTube’s Smarter Every Day, built one using clear pipes, so that we could see what was happening as he hurled potatoes towards some watermelons. In his latest video, he brings the spud launcher back out with a high speed camera shooting 20,000fps and the results are amazing.
If taking photos of speeding bullets is hard, imagine how hard it is to take photos of a nuclear bomb going off. (I mean aside the obvious issue of having yourself and the camera being completely decimated if you were at any reasonable distance).
I mean, if you developed a nuclear bomb, you wanna see how it works, right? Well the fire call created by the explosion was created so fast and expanded so rapidly that it was virtually impossible to capture. That is until professor Harold Eugene “Doc” Edgerton of MIT invented the Rapatronic Camera.
Not to long ago, we showed you how to do a similar, but more budget-friendly, method of using sound detection to fire your shutter using a TriggerTrap and a Canon 600 EX-RT, but now let’s take a look at a slightly more
expensive awesome way of doing it. Enter the Broncolor Scorro and a TriggerSmart sound trigger. Those two pieces of equipment paired with several softboxes and a some reflective black plexiglass and you’ve got yourself quite an impressive studio setup to help you get the job done. (Of course, shooting with a Hasselblad doesn’t hurt either.)
Shooting a bullet in mid air requires a special type of detector to ‘catch’ the bullet in mid air. Usually, a special sensor called a ‘gate sensor’ is used. The trick is a gate sensor is that it can calculate the speed of the bullet and ‘nail’ the shot at the right time. Those are not trivial to build.
This is why I was pleasantly surprised when I got this tutorial from Matt Kane who managed to build a bullet catching circuit for under $2.
Matt used a phototransistor along with a red laser to build cheapass bullet detector with the entire cost of the build being under $2:[Read More…]