Issac Newton stated in his third law of motion that to every action there is always an equal and opposite reaction. How would you like to set up you're very own third law proving machine in your house or on your desk.
It's surprisingly fun and helps to inspire creativity and relaxation. This is due to the metronomic quality of the ball bearings knocking back and forth.
This is built from the original design that Sir Issac drew way back when.
With the exception of Personal Gift items, orders totalling £20 or more will benefit from free delivery within the United Kingdom.
Royal Mail 1st class recorded £1.50 (2 to 4 working days)
Special Delivery / Business Post (next day) £7.50
£20.00 (up to 10 working days)
£25.00 (up to 10 working days)
PO BOX 740