Tuesday, August 12, 2014

Liquid laughing gas supports combustion

I liquified a small amount of laughing gas (nitrous oxide) and put a burning piece of wood in it to see the result.  The heat from the flame causes the nitrous oxide to decompose into nitrogen and oxygen, which supports combustion more vigorously than air.


Thursday, August 7, 2014

How to chemically strengthen glass (eg Gorilla Glass)

I describe why glass fails, and how to improve its apparent strength via a simple chemical treatment. This process is used to create Gorilla Glass.


Saturday, July 26, 2014

Ultra low-temperature cascade refrigeration system repair

I bought a -100*C refrigerated cold trap from a surplus sale, which was not operational.  In this video, I describe how the unit works after recharging its second stage with R1150 (ethylene) refrigerant.

Savant RVT4104 - (manual) http://phoenix.tuwien.ac.at/chemistry/Gebrauchsanweisungen/SAVANT%20Vapor%20Trap.pdf


Wednesday, July 16, 2014

Vote for future video topics on Applied Science

Upvote here:  http://www.reddit.com/r/AppliedScienceChannel


Monday, July 7, 2014

How to electropolish aluminum

I show a basic electropolishing technique that requires no special equipment and has proven to work well on aluminum (aluminium).