Rank these iconic scientific instruments by the year they were first successfully demonstrated, earliest first.
From glass lenses to laser beams, some inventions completely reshaped how we see the world. Can you place these game-changing scientific tools in the correct chronological order?
Put the options in the correct order. Drag the β Ώ icon to reorder.
1
The mercury thermometer2
The Geiger counter3
The electron microscope4
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