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There are 141 products.

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STEM lab curvimeter - 3d wooden mechanical puzzle

The Curvimeter is a device that measures the length of curved lines and helps to calculate thedistance between the points on a map more precisely than a ruler or a compass.The mechanism has a measuring wheel, a clock face and a hand When the wheel moves along the line on a map that you need to...

Price CHF27.90

STEM lab variable - 3d wooden mechanical puzzle

Le variateur est un dispositif qui transfère et ajuste le couple du moteur en changeant le rapport des vitesses. Le rapport de vitesse peut changer automatiquement, manuellement ou dans le cadre d'un programme préétabli. Le terme auquel la plupart des conducteurs et des passionnés d'automobile...

Price CHF27.90