La quinta dimensión
Physics || I suddenly realize my love affair with physics has informed my entire relationship philosophy foundation.
just like my dreams...
Just in case you did not know, this thing exists, and it is insane...
diy Filter rain water in a barrel (or other container), with sand, charcoal etc)
vertical axis wind turbine and solar panel combined.
solaire et eolien: Homemade vawt eolienne a axe vertical finie
#LEDFlasherCircuit is an electrical circuit used to power a light-emitting diode.
palanca polea plano inclinado torno - Buscar con Google
The most beautiful words in English. Try using some of these words this weekend!