Description | Letter received by the Royal Society as a result of a statement, titled 'A Curious Fact' (see AP/10 for description). Hathaway begins by quoting the problem as seen in a local newspaper, and then provides his solution, attributing the phenomenon to the 'fluid' of air on the upper card, counteracting the force of breath blowing on the lower card.
Subject: Physics
Written by Hathaway in Rome, Oneida County, New York [United States]. |