What was John Dalton's first scientific paper about?
Colour blindness
Atomic theory
Periodic table
Quantum mechanics
Answer
Dalton's first scientific paper, published in 1794, focused on colour blindness, a condition he personally experienced. He described his own difficulties in distinguishing certain colours, particularly red and green, and proposed that this was due to a deficiency in the eye's ability to perceive certain colours. Dalton's observations laid the foundation for understanding colour vision and colour blindness, which is now known as Daltonism in his honour.
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