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Antoine-Laurent Lavoisier, French Chemist
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Eli Whitney, Cotton Gin, 1869
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Surgical Equipment, 16th Century
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Edmond Becquerel, Thermopile, 1866
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Astrolabe, 1566
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Stone Age Gardening Tool
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Stone Age Gardening Tool
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Stone Age Gardening Tool
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Toy chainsaw, X-ray
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Toy girl with chainsaw, X-ray
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Pharmacist packaging prescriptions
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Toy plastic spanner with bolt and nut, X-ray
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Yellow-legged seagull chick being ringed
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Apprentice mechanic working on an engine
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Student using a lathe
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Child at a science fair
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Student using a lathe
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Student using a lathe
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Tuning fork vibrations and sound waves, illustration
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Tuning fork vibrations in water, illustration
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Hammer, illustration
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Hearing tests, 3d Illustration
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Hearing test illustration
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Doctor measuring blood pressure
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Suture removal kit
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