Today we take a closer look at a video we posted a while ago. In this video we have pushed in to put you right at the center of the explosion. There is enough detail to actually watch the vectors of the fluid movement.
Materials
We can skip this, if you don’t know how to make this already, you don’t need to be making it.
Procedure
Detonate using electronic detonation.
Result
This is a crop of the previous video found here. This puts you right in the center of the raging fireball. You can see the movement of the fireball fairly clearly in this video. It is interesting to note how the flames move and evolve. At speeds like this you really get a chance to see things that are ordinarily invisible to the eye, the motion and formation of the fireball being one of those things.
Today we look at a large lightbulb being rather unceremoniously smashed against a wall.
Materials
A large dead light bulb.
Procedure
First determine your distance from the wall, A. The force at which you know you can throw, B. Then take the circumference of the earth minus A, and throw that away, it is quite useless. Then take B and go ahead and chunk that too, you won’t be needing it here. Then figure in the wind speed and gravity (9.8m/s/s in most places, your gravity may be different, please inquire at your local post office). Take all of these things and write them down on a large brown piece of paper. You won’t be needing them again. Now toss the bulb at the wall.
Result
A rather large and somewhat unsafe explosion of lots of tiny pieces of glass that can get lodged in your eye if you don’t have safety glasses on. If you do have safety glasses on, congrats you are now safely protected on a very very small portion of your body. In all seriousness this is a neat shot that I rather enjoy, one piece of glass becoming many. Mechanical reproduction at its…um….finest.
This is a close up of a shot we had filmed a few months ago.
Materials
Right around 1/4 gallon of gasoline.
A video appropriately titled “Fire and things not to do with it because you might lose all the hair, and skin, on your body.”
Procedure
Let’s not and say we did.
Result
This close up shot allows us to take a little closer look at the previous video, giving us some more detail to work with. This video shows the point where the gasoline has completed its burn and is now turning to smoke. This is a great look at one of the things I think is prettiest about this shot. The fire itself is pretty, the smoke is as well, but both of them together make for that classic fireball we all know and love as made popular by countless action flicks. I especially like the way the smoke takes the light, it really gives you a feel of how dense the smoke actually is.
This is another clip from the series we shot for the KillSwitch Engage video.
Observations
This is another really good opportunity to study the dynamics of fire. The flame in this instance was again caused by igniting gunpowder misted with kerosene. The previous posts on this topic really sighted everything that needed to be pointed out, but it is awfully neat to watch another version of it. Well it is if you happen to be interested in the dynamics of fire.
Today we take a look at a bunch of paint balls impacting a wall.
Materials
Paintball gun (Provided by Advanced Tronics in Waycross, GA)
Paintballs
Observations
This was a rapid fire paint ball gun that would belt out the paint balls at a pretty decent clip. The force these things hit with was rather amazing, it was actually taking the paint off of the wall. One of the things I like about this particular shot is the way each ball pushes the remaining paint around. This is a good one to still frame through, there are several really interesting hits.
Today we take a look at another amazing video, this one created for the Sundance film festival. Lucid Movement had nothing to do with this video but since I love both slow motion and slapstick comedy I cannot resist posting it. This was sent to us by one of our readers, thanks!! This is another great example of what can be done with these high-speed cameras. This is an excellent study in bio-mechanics as well as humor. Enjoy!!
Today we take a look at another high-speed shot of a paint ball being shot with a plastic bb.
Materials
A paint ball.
A bb gun.
A stand of some kind. In this case a 2-liter bottle.
The standard black backdrop.
Procedure
Place the paint ball on the stand and shoot it.
Result
I slowed this one down to 25% of its original speed so we could get an opportunity to see what was actually going on. This is a pretty fascinating shot and one I plan to recapture with a faster camera, this would be excellent in the 2-5K fps range. The fluid flow is just amazing to look at, the twisting of the strands before it starts its spin, the splash as the bb hits it. We can tell from the way it spins that the bb just grazed the paintball. This is definitely a shot you want to step through frame at a time to really see what is going on.
