- race 34
- racial prejudice
34 and eugenics
18 during American conquest
18 in South Pacific
6 not supported by science
- radioactivity 29
31 - in the Earth's core
- radio telescope 33
- radio waves 28
- Raphael 17
- Ravenna 12
- rBST 35
- reality 28
28 - and modern science
- Réaumur 20
- red giant 33
- reflex 30
- reformatio sigismundi 12
- reformation 19 23
- Reich 30
- relativity theory 28 33
28 general -
28 special -
- religion
1 definition
15 Chinese
22 end of - ?
8 Greek -
14 Indian -
22 separation from philosophy
in Hegel's system 22
8 25 separation from science
- Renaissance
17 definition
- republic
20 in England
28 in France
28 in Germany
11 in Rome
- Republic (Plato) 8
- research
29 industrial -
29 pure and applied -
- research vessels 26
|
- resonance 33
- revolution
21 definition
27 28 industrial
21 22 24 25 31 scientific -
- ridge, mid-ocean 31
- Rights of Man (France) 21 26
- Ritter 33
- Röntgen 29
- Romanticism 22 27
- Rome 11
11 aquaeducts
11 attitude to science
7 calendar
12 decline of -
11 dentistry
12 eastern empire, foundation of
12 eastern empire, class conflict
13 eastern empire, university
11 medicine
11 public baths
11 road system
12 western empire
- Roosevelt 29
- Rousseau 22 25
22 author of Encyclopédie
- Royal Botanical Gardens 25
- rubber 18 25
- Runcorn 31
- Russell 33
- Russian Revolution, see October Revolution 29
- Rurik 23
- Rutherford 28 29
|