tomsharp · @tomsharp
100 followers · 201 posts · Server mastodon.sdf.org
In 1799, John Haygarth compared the effects of Perkins patented tractors against wooden imitations to establish the placebo effect. #Poetry #Science #History #Medicine #Placebo #Haygarth (https://sharpgiving.com/thebookofscience/items/p1799c.html)
#poetry #science #history #medicine #placebo #haygarth
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