arts 290
- craft industry 10
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- artists 43
- informations and media 8
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- festivals 3
- architect 8
- personal pages 17
- visual arts 20
- performing arts 8
- portals 1
- teaching and formation 4
- associations 3
- literature 12
- cartoons 12
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- cinema 7

data processing 27
- Internet 1
- programming 3
- software 5
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- images 3
- formation 1
- freeware 1
- artificial intelligence 7
- formats of data 1
- material 1
- parallel calculation 1
- virtual reality 1

house 41
- garden 3
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- do-it-yourself 5
- guides 1
- information for the consumers 4
- decoration 14
- informations and medias 2

games 19
- games 6
- role games 1
- Internet 5
- gambling 1
- video games 6

company 45

sports 85
- balls and balloons 2
- watery 1
- mountain 1
- fights 3
- extremes 3
- balls 8
- artistic 1
- air 24
- horsemanship 1
- slide 1
- events 6
- drive 14
- informations and medias 3
- teaching and formation 1
- mechanics 5
- fish 2
- cycling 9

leisures 172
- pets 62
- humour 7
- evaluation of photographs 3
- collections 17
- hobbies 43
- alive history 25
- kites 1
- celebrities 14

tourism 50
- travel 34
- naturism 6
- amusement parks 6
- roads and motorways 1
- lodging and restoration 3

shops on line 47
- entertainment 1
- children 1
- sports 1
- gastronomy and food 1
- arts 3
- retailers 6
- animals 12
- jewellery and clock industry 1
- wholesalers 2
- flowers and plants 1
- automobiles 6
- gifts 1
- health 1
- music 2
- house and garden 1
- buying associations 2
- clothing 2
- auction sales 3

formation 29
- associations 9
- guides 2
- resources 2
- disciplines 2
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- secondary education 5
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- pedagogy 1
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health 45
- diseases 2
- alternative medicine 2
- mental health 4
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- associations 1
- health man 1
- information 5
- pharmacy 1
- relaxing 1
- nutrition 3
- publications 1
- fitness 3
- hospitals and private clinics 2
- animals 2
- medicine 2
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news 140
- weblogs 37
- newspapers 5
- radio 4
- journalism 6
- at the top 16
- by topic 14
- information traffic 6
- magazines and E zines 7
- television 3
- alternative media 42

references 49
- charts 2
- encyclopaedias 3
- languages 4
- standards 2
- bibliography 16
- knowledge management 16
- dictionaries 1
- libraries 5

trade and economy 46

internet 62

adult 38
- weblogs 8
- other 4
- gay 11
- amateurs 14
- hetero hard 1

sciences astronomy

GeoDirectory

Wcs - the home of webcamscheinern

Wcs - the home of webcamscheinern

Wcs is a software for fast polaralignment of astronomical mounts. you nail your alignment within 20 minutes!

Speed of light

From general relativity we know that only in local inertial frames does the measured speed of light equals the nominal speed of light (299792.458km/sec).