talk without noise ( SOMETHING THAT IS BADLY NEEDED IN EVERYDAY SOCIETY ANY WAY,BUT ALSO VALID HERE !)
Just in case ...
Junkers Ju 390
Ju 87 G-1 "Kanonenvogel"
The evolution of the Nazi's war planes throughout World War 2. Germany had a solid air force.
TinkrPostr: Basic Electronics Reference Posters | Indiegogo
How to Make a 12v Battery Charger
Ohms Law Pie Chart. (This site also has the power triangle on it in GIF format.)
How to Make Cheap Thermal Goggles #arduino ~~~ For more cool Arduino stuff check out http://appstore/iotmonitor