Bottle

Hvordan fungerer en vandflaskebil? Hullerne i flasken Et stort sugerør placeres gennem flasken, og eleverne blæser ballonen op og slipper den. Luften ...

Can you make a car? While short cuts are possible, assembling your own car is a daunting task. This is definitely not something for the faint of heart...

How do you make a toy car move by itself? Put a magnet at the bottom of the tabletop so that the pole of the magnet in the car and the pole in the mag...