第八章 The Industrial Revolution 工业革命
书迷正在阅读：神级扮演：从小丑开始、地下城之主、全球天选：开局觉醒百倍经验天赋、妖魔入侵：我成救世大剑仙、名侦探柯南续集、火影：等会，我先戴个写轮眼、神奇宝贝之无尽轮回、这个世界的穿越者有点多、异界游戏王之虚空变、潜伏火箭队，只为超梦
gine until 1733 under a joint patent.Newcomen’s engine appears to have been based on Papin’s experiments carried out 30 years earlier， and employed a piston and cylinder， one end of which was open to the atmosphere above the piston. Steam just above atmospheric pressure was introduced into the lower half of the cylinder beneath the piston during the gravity–induced upstroke; the steam was then condensed by a jet of cold water injected into the steam space to produce a partial vacuum; the pressure differential between the atmosphere and the vacuum on either side of the piston displaced it downwards into the cylinder， raising the opposite end of a rocking beam to which was attached a gang