white residue on water heating coil

Started by philonossis | Last post by Borek December 08, 2010, 02:05:02 PM

Covid: Disinfect Money

Started by Enthalpy | Last post by Enthalpy June 19, 2020, 04:43:24 PM

Copper against Covid

Started by Enthalpy | Last post by Enthalpy April 22, 2020, 05:35:03 AM

Potassium Iodide Seperation

Started by constant thinker | Last post by Alberto_Kravina December 18, 2005, 02:08:43 PM

Cleaning out a sunscreen bottle

Started by lord_raider | Last post by Archer August 14, 2013, 05:10:10 PM

manufactrure of ammmonia

Started by ABO_GOODA | Last post by Borek December 04, 2005, 03:33:17 PM

Can the coefficient of static friction be less than dynamic friction?

Started by curiouscat | Last post by Enthalpy May 30, 2013, 09:58:17 PM

Greek Fire, help

Started by kid009 | Last post by Donaldson Tan May 10, 2006, 03:33:00 PM

Adhesive solvent

Started by mercado | Last post by limpet chicken April 15, 2006, 02:40:48 AM

decompositionof Petroleum

Started by Jen | Last post by Dude May 10, 2005, 04:22:11 PM

Smoke, breath, and exhaust....

Started by Chrataxe | Last post by jdurg December 26, 2005, 07:46:00 PM

Diluted strength of a weed killer ?

Started by Torment | Last post by Borek September 16, 2019, 05:49:18 AM

what's my mistake?

Started by Riley_5000 | Last post by vhpk November 16, 2008, 04:54:50 AM

Relating psi and g (gravitational)

Started by Arkcon | Last post by Enthalpy September 15, 2016, 07:06:53 PM

Polyurethane for making strong plastic

Started by shinai | Last post by Hbond November 01, 2005, 09:30:49 PM