Dec 31, 2022 · From the video, the initial flash was very short, showing up at full brightness only for two frames (although it was preceded by a couple of frames showing a partial flash). Frames seem to be 30 per second, so that makes the flash duration between a 30th and a 10th of a second. (You can use comma and period on the keyboard to step back or forward).

Aug 12, 2006 · They contain hundreds of hydrocarbons as well as many additives. The actual composition of any given fuel varies depending upon source of the crude oil, refinery processes, and product specifications. The hydrocarbons in jet and diesel fuels are less volatile than those in gasoline. JP-5 is a high-flash-point jet fuel developed by the Navy.

Dec 13, 2011 · Even comparatively dim flashes could appear bright when your eyes are in that situation. Even though the flash itself might only last a tiny fraction of a second, the image sensed by your retina (which can include the walls/floor/ceiling -- anything lit by the flash) might last at least a little longer than that, just due to the way the eyes work.

Jun 7, 2012 · However, if you Google something like "Effect of Additives on the Flash Point of Flammable Liquid" you will find that you can begin by adding water to the alcohol to raise its flash point (for example, a mixture of .7 water & .3 methanol seems to raise the flash point by 25 degrees C). You would then add this mixture to the petroleum.

Oct 6, 2008 · Stun grenades, or "flash bang" grenades, operate on this principle. They produce a large blast but almost no shrapnel. The noise and brightness of the flash are very disorienting, and the shock wave can actually knock a person down, but the chances of being killed by one, even at close proximity, are very slim.

Sep 13, 2018 · Nevertheless I only ever saw the white flash when my eyes were closed except for the odd time during the day where I thought I saw something but couldn't be sure. BCHydro recently shut off the power to my house to work on power lines and when they turned it back on I was standing in my room right against the wall where on the other side was an ...

Jun 7, 2006 · The RC cicuit will charge from the 110V power suply, and when the capacitor reaches 75V the neon lamp will become a good conductor and will immediately discharge the capacitor, energy stored will be given off as a flash of light. After the flash the charging process will start again. a)Determine the flash frequency with the resistance value shown.

Jun 15, 2016 · If this is an ET vulnerable to fire, then just pick the flash point for the material closest to its composition... that would start it burning. However, you want it to burn quickly... it is not just temperature that governs burn speed. If you want a realistic fire vulnerability, then you need to figure what form it takes.

Jan 26, 2017 · I saw strange flashes of light last night in a dark room and am wondering what caused them. They seemed the only happen when I moved the comforter, but it was not always in the same area. I thought at first it was a brief reflection of light, but I couldn't find a source for the reflection that...

Sep 24, 2007 · Observer O sees a red flash of light at the origin at t=0 and a blue flash of light at x = 3.26km at a time t = 7.63 [tex]\mu[/tex] seconds. What are the distance and the time interval between the flasheds according to ovserver O', who moes relative to O in the direction of increasing x with a speed of 0.625c?