Do you have to buy the marbles separately ? Did not get any

It def should have came with 5 or 6 bub

Why does perpetual motion machine need power/charging?

While perpetual motion does not realistically exist this machine simulates it by using electricity to add kinetic energy to the ball bearing with the use of a hidden motor and electromagnet.

Why are there 2 picture that depict the ball going the opposite way?

The people who drew the arrows had to concept of the direction in which the ball travels. It goes from base, down the hole, through ramp, back to base.

Product Dimensions	15 x 10 x 2 cm; 272 g
Manufacturer recommended age	5 years and up
Educational Objective(s)	Exploratory Skills
Assembly Required	No
Batteries Required?	No
Batteries Included?	No
tech_spec_battery_description_toys	Alkaline or Lithium
Material Type(s)	Plastic
Color	Brown
ASIN	B09VTJ4LZ8

BMVVQUE Kinetic Art Perpetual Motion Machine，Plastic Equilibrium Kinetic Energy Model Rolling Ball Perpetual Marble Machine, Science Physics Gadget ，Decompression Cycle Ornament，Office Home Ornament

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لديك سؤال؟ انظر ماذا طلب الآخرون

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