It's not a bug it's a feature – vincit omnia veritas
„5g vanillin were heated in a 100ml beaker to 130°C, then 1g ascorbic acid dissolved. The mixture turned dark green after stirring it for several minutes. The reaction product is a soft, clear and elastic compound“
http://markus-bindhammer.blogspot.de/2011/11/reaction-of-vanillin-with-ascorbic-acid.html
“ This project involved making a S.M.A.R.T (Self-Monitoring, Analysis, and Reporting Technology) Thermostat which could be accessible over the internet. This project combines several elements of embedded electronics, all while keeping on the theme of Home Automation. This page is a quick overview of the project; full documentation including EagleCAD board schematic & layout, as well as the Source code, can be found at the bottom of the page.
When designing this project, I wanted it to conform to these requirements:
http://www.mgdengineering.com/hvac.htm
