nmlss:

the-star-stuff:

Circuit Scribe – a pen that draws functional electronic circuits instantly.

This is really awesome, like it will be easier to do electronic circuits but I still enjoy doing it on a circuit board and experimenting on it until you get it right. This is good in notebook though. =)))

¿Os imagináis cómo hubieran sido vuestras clases de tecnología con esto?

en realidad con un lapiz normal tambien vale… http://www.ikkaro.com/potenciometro-casero