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contribution of chemistry to physics
it is the contribution of human being.
the contribution of inventing microscopes is go to die
Christian Doppler is best known for his discovery of the Doppler effect, which describes the change in frequency of a wave for an observer moving relative to its source. This effect is widely used in various fields, such as astronomy and medical imaging, to understand motion and velocity. Doppler's work laid the foundation for understanding how sound and light waves can be affected by relative motion.
Wallace's contribution was almost similar to what Charles Darwin's theory of evolution is. Is that helpful?