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Hendrik Zwaardemaker

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Hendrik Zwaardemaker (10 May 1857, Haarlem – September 19 1930, Utrecht?)^[1] was a Dutch scientist who invented the olfactometer in 1888.^[2]

From 1897 to 1927 he was professor of Experimental Physiology at the University of Utrecht. In addition to his work on the sense of smell, he also conducted research on the human heart. He found that salts of potassium and other radioactive elements stimulated the heart.^[3]

References

^ A. K. M. Noyons. Hendrik Zwaardemaker: 1857-1930. The American Journal of Psychology, Vol. 43, No. 3 (Jul., 1931), pp. 525-526
^ Eibenstein, A.; et al. (July 2005). "Modern psychophysical tests to assess olfactory function". Neurological Sciences 26 (3): 147 – 155. doi:10.1007/s10072-005-0452-3. ISSN 1590-1874 1590-1874. Retrieved on 2007-01-15.
^ "Heart Radioactivity", TIME, December 9 1929. Retrieved on 2007-01-15.