Meanwhile, here are videos where we can estimate the focal of the concentrators and see wood under combustion (40 cm parabolic version in july for the video with the small stirling engine, 80cm plaster version in november for where it is put on the ground)
Vous avez entré un nom de page invalide, avec un ou plusieurs caractères suivants :
< > @ ~ : * € £ ` + = / \ | [ ] { } ; ? #
Français
English
Deutsch
Español
Italiano
Português