1 Inventions
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 sawmill Upgrade
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
2 Discoveries
2.1 Bacteria
2.2 spermatozoa
2.3 Infusoria
2.4 The respiration and photosynthesis of the plant
2.5 The Rings of Saturn
2.6 Australia
Pretty Usefull fella's, aren't they?
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