The author posted a question in Golden find
What does the term *Pascal's Barrel* mean? and got a better answer
Response from Ђолст Олег[+]
Pascal's Barrel is the Barrel of Knowledge. At Pascal's direction, a sturdy oak barrel was filled to the brim with water and sealed tightly with a lid. In a small hole in the lid sealed the end of a vertical glass tube so long that its end was at second-floor level. Out on the balcony, Pascal began to fill the tube with water. No sooner had he poured out a dozen glasses than, to the amazement of the onlookers, the barrel burst with a bang. An incomprehensible force tore it open. Pascal became convinced: yes, the force which tore the barrel did not depend at all on the quantity of water in the tube. It's all about the height to which the tube was filled. Then the amazing property of water - to transfer the pressure created on its surface in the barrel to the entire volume, to every point on the wall or the bottom of the barrel - is revealed. This is how he comes to the discovery of the law that bears his name.
Pascal's Barrel is a Barrel of Knowledge. At Pascal's behest, a stout oak barrel was filled to the brim with water and sealed tightly with a lid. In a small hole in the lid sealed the end of a vertical glass tube, so long that the end of it was at second-story level. Out on the balcony, Pascal began to fill the tube with water. No sooner had he poured out a dozen glasses than, to the amazement of the onlookers, the barrel burst with a bang. An incomprehensible force tore it open. Pascal became convinced: yes, the force which tore the barrel did not depend at all on the quantity of water in the tube. It's all about the height to which the tube was filled. Then the amazing property of water - to transmit the pressure created on its surface in the barrel to the entire volume, to every point on the wall or the bottom of the barrel - is revealed. This is how he comes to the discovery of the law that bears his name.
At Pascal's direction, a stout oak barrel was filled to the brim with water and closed tightly with a lid. Through a small hole in the lid, the end of a vertical glass tube was caulked so long that the end was at second-floor level. Out on the balcony, Pascal began to fill the tube with water. No sooner had he poured out a dozen glasses than, to the amazement of the onlookers, the barrel burst with a bang. An incomprehensible force tore it open. Pascal became convinced: yes, the force which tore the barrel did not depend at all on the quantity of water in the tube. It's all about the height to which the tube was filled. Then the amazing property of water - to transmit the pressure created on its surface in the barrel to the entire volume, to every point on the wall or the bottom of the barrel - is revealed. This is how he comes to the discovery of the law that bears his name.