RT @Rainmaker1973b: Calculation of π, from rain falling on two wooden plate sensors, one circular and one square: the number of raindrops t… 0 atbildes
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Gints Kiršteins (2018-12-10 12:23:39) |
RT @Rainmaker1973b: Calculation of π, from rain falling on two wooden plate sensors, one circular and one square: the number of raindrops t… | |