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Brownian motion

Brownian motion refers to the irregular motion of suspended particles in liquids or gases.

Brownian motion — Basic Science exhibit for science museums
Reference image
CategoryBasic Science
Standard sizeCustom size
SupplySingle unit or batch · OEM to your drawing
Lead timeStandard 4–8 weeks after deposit (confirmed per contract)
Warranty1 year, structure and control
DocumentsSpecification sheet · control diagram · spare-part list

A standard catalogue model: the dimensions, control package and finish are fixed, which is what keeps the price and the lead time predictable. Size, colour and interface language can be adapted without a new design cycle.

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01 / Overview

Brownian motion refers to the irregular motion of suspended particles in liquids or gases. The irregularity of Brownian motion reflects the irregularity of molecular motion within liquids. Simulate water molecules with ball bearings and suspended particles in water with circular discs. When the ball (simulated water molecules) collides with the disk (simulated suspended particles), the motion of the disk is what we simulate as Brownian motion. Brownian motion is related to the size of suspended particles and the temperature of the liquid (or gas). The smaller the suspended particles and the higher the temperature of the liquid (or gas), the more pronounced the motion.

02 / How visitors use it

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

03 / Built for a public floor

Every unit leaves the factory after a running test: mechanisms cycled, electronics burned in, edges dressed, fixings torqued and marked. Wear parts — bearings, sliders, lamps, belts, touch panels — are modular and listed on the spare-part sheet, so a venue technician can replace them without returning the exhibit. Crating is plywood with foam blocking; the loading plan and packing list travel with the shipment.

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