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More things you guys can take credit for...
1.1 The Microscope
1.2 The Telescope
1.3 The Pendulum clock
1.4 The Electrocardiograph
1.5 The Phase contrast microscope
1.6 The Compact disc
1.7 The Sawmill
1.8 The Road-rule enforcement camera
1.9 The Leyden jar
1.10 The pyrometer
1.11 The Submarine
1.12 The artificial kidney
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