Dust Ball koncept usisivač
Do sada smo viđali razne koncepte automatskih usisivača. Ovaj obećava, pokreće se promenom centra gravitacije, ali kako usisava ćoškove ? :) Pogledajte video: Izvor: Dave Hakkens
Dust Ball – a great vay to vacuum
We have seen a lot of concept vacuum cleaners in the past. This one looks promising. The movement is done by shifting the center of gravity. But how does it vaccuum corners ? :) Video explains it all: Source: Dave Hakkens