- Nagasaki 29
- Nan Madol 18
- nanotechnology, see new technology 1
- Napoleon 21 28 32
- Nara 32
- National Academy of Sciences (USA) 25 31
- National Research Foundation 32
- national revolution 35
- nationalism 29
- NATO 29
- natural selection 25 34
- nature-nurture problem 34
- navigation
20 during the Enlightenment
17 in medieval China
18 in the South Pacific
- Nestorius 12
- Neumann, von 32
- neutron 24
- neutron star 33
- Newcomen 21
- Newton 20 24 33 35
33 and infinite universe
24 and social revolution
- Newton's Laws 27
20 definition
8 relationship to Aristotle
20 relationship to Galilei
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- Nine Chapters on the Mathematical Art 15
- nova 33
- Novgorod 23
- Novum Organum 31
- nuclear bomb see atom bomb
- nuclear fission 29
- nuclear physics 28 29
- nuclear power 29
- number base
4 auxiliary
- number system
4 absolute -
5 Babylonian
5 15 Chinese
3 16 decimal, duodecimal, sexagesimal, vigesimal, quinary
10 Greek
3 of hunter-gatherer societies
6 14 16 Indian
5 7 18 Mayan
3 natural -
5 place value -
4 Sumerian -
3 in different societies
- numbers
6 Arabic -
4 Aztec -
4 Egyptian -
3 English, French -
3 origin of -
4 Roman -
- Nyaya philosophy 14
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