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  1. Unexplained bright flash of light inside house - Physics Forums

    2022年12月31日 · The first flash was so bright it immediately woke me up. I thought somebody just shined a bright flash light in my face from inches away. The second flash 5 seconds later, I …

  2. How to calculate flash point of mixture? • Physics Forums

    2012年6月7日 · To achieve a target flash point of around 70ºF for a mixture of isopropyl alcohol and aliphatic hydrocarbons, a precise calculation based on thermodynamics is necessary. …

  3. Strange white flash in a dark room - II - Physics Forums

    2010年9月23日 · The flash is just as bright as sunlight at daytime. The room (kitchen) is in the second floor and is in connection to the living room. The room has a new kitchen now, but …

  4. What caused the mysterious flash of light during 9/11 plane strikes?

    2006年3月13日 · The discussion centers on the mysterious flash of light observed during the 9/11 plane strikes on the World Trade Center. Some participants speculate that the flash could be …

  5. Jet Fuel, JP-5, JP-8 & DFM: Properties, Chemical Composition ...

    2006年8月12日 · The discussion focuses on the properties and chemical compositions of various jet fuels, specifically JP-5, JP-8, and JP-10, highlighting their hydrocarbon mixtures and …

  6. Strange white flash in dark room. - Physics Forums

    2009年7月8日 · A couple experienced a brief flash of white light while lying in bed, prompting speculation about its origin. They ruled out common explanations like static electricity or …

  7. Flash Light at the Speed of Light Question • Physics Forums

    2009年2月10日 · These are the kinds of thought experiments which led Einstein to develop special relativity, which includes the fact that no one can go at the speed of light.

  8. How Does a Grenade's Shockwave Cause Fatal Injuries?

    2008年10月6日 · A grenade's shockwave can cause fatal injuries by delivering a high-speed blast of compressed air that damages the body similarly to a vehicle collision, despite having less …

  9. Camera Flash Circuit Explanation - Physics Forums

    2012年7月22日 · The discussion focuses on the operation of a camera flash circuit, particularly the behavior of the transistor within it. Participants explore why the transistor enters cutoff …

  10. Calculating Flash Frequency in a Simple Blinking Light Circuit with ...

    2006年6月7日 · The discussion focuses on calculating the flash frequency of a blinking light circuit using a neon lamp. The circuit charges a capacitor until it reaches 75V, at which point the …