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A classic brass balance scale weighs a stack of metal gears against a smooth river rock on a laboratory desk.
Welcome to the Great Balance Experiment! On top of a sturdy wooden desk sits a very special tool called a pan balance scale. Scientists and engineers use scales like this to compare the weight of different objects. It is a classic way to learn about the secrets of the world.
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A cheerful mechanical robot carefully turns the brass handle of an antique phonograph, ready to play a classic vinyl record in the lab.
A cheerful robot wearing a propeller hat carefully sets up a toy rocket ship on a laboratory launch pad.
A friendly, blocky robot with a monitor screen for a head stands at a wooden workbench, carefully using a metal hammer to assemble a classic wooden birdhouse.
A helpful little engineering robot uses its mechanical claws to carefully assemble a miniature wooden suspension bridge on a desk.
A helpful little robot wearing a tiny lab coat carefully uses a glass dropper to activate a miniature volcano science project on a desk.
