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

    Dec 31, 2022 · Last night I was awoken by what seemed like an extremely bright flash of light. I sat up and saw another bright flash of light just outside my bedroom that...

  2. How to reduce tin? • Physics Forums

    Nov 5, 2025 · The discussion focuses on methods to reduce tin from scrap pewter, particularly exploring the use of ascorbic acid as a reducing agent. There is uncertainty about ascorbic acid's effectiveness …

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

    Jun 7, 2012 · Hey guys, I would like to create a mixture out of two liquids with an ideal flash point of around 70ºF. The liquids I have to work with are 200 proof (100%) isopropyl alcohol (2-propanol) and …

  4. Flash Point of Petrol & Diesel: Pressure & Self Ignition

    Aug 13, 2018 · Flash point temperature of petrol is lesser than that of diesel at the same pressure. Does this mean, if I take petrol and diesel as liquids in separate...

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

    Aug 12, 2006 · I found some interesting stuff while doing some research and thought it might be useful...

  6. Flash Joule Heating (FJH) Method for treating process waste streams

    Nov 25, 2025 · I caught the tail end of a video about a new application for treating chemical or process waste, which is applied to 'red' mud or contaminated bauxite residue, but the person of interest …

  7. Why N-Butane & Isobutane Have Different Autoignition & Flash Points

    Aug 22, 2012 · The autoignition temp of n-butane (straight chain) is 288 degree Celcius while that of isobutane (branched chain) is 460 degree Celcius. The flash point of...

  8. Camera Flash Circuit Explanation - Physics Forums

    Jul 22, 2012 · These two websites: http://www.increa.com/reverse/dc/ and http://thesignalpath.com/blogs/2011/06/12/camera-flash-circuit-and-nixie-tube-tutorial/...

  9. WTS-Cetme L fake flash hider - calguns.net

    Jan 12, 2020 · I have 11 of them to sell , these are for the 5.56 Cetme rifles out there. They are made like the original flash hiders but have no slot. They are made of 416 SS thread 12x1mm RH. $10 a …

  10. What Caused the Strange Flash of Light in My Bedroom at 3:57am?

    Apr 15, 2022 · (edit.. not the red light, that's my emergency power outage light in every frame, I'm referring to 3:57am and exactly 15 seconds, blink and you will miss...