Martian canal
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines in the equatorial regions from 60° north to 60° south latitude on the planet Mars observed by astronomers using early low-resolution telescopes without photography. They were first described by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features.
Page Revisions
| Year | Metadata | Sections | Top Words | First Paragraph |
| 2018 |
72811 characters 9 sections 12 paragraphs 9 images 247 internal links 19 external links |
canals 0.625 canal 0.219 schiaparelli 0.211 lowell 0.208 observers 0.117 canale 0.116 canali 0.105 irrigation 0.100 seas 0.099 1894 0.096 opposition 0.091 drawings 0.082 1877 0.081 19th 0.081 idea 0.075 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines in the equatorial regions from 60° north to 60° south latitude on the planet Mars observed by astronomers using early low-resolution telescopes without photography. They were first described by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2017 |
68856 characters 7 sections 13 paragraphs 9 images 248 internal links 19 external links |
canals 0.653 schiaparelli 0.220 lowell 0.218 canal 0.131 observers 0.123 canale 0.121 canali 0.109 irrigation 0.104 seas 0.104 drawings 0.086 1877 0.085 opposition 0.071 doubling 0.071 wallace 0.068 illusion 0.067 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines in the equatorial regions from 60° N. to 60° S. Lat. on the planet Mars observed by astronomers using early low-resolution telescopes without photography. They were first described by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2016 |
66886 characters 7 sections 13 paragraphs 9 images 244 internal links 18 external links |
canals 0.656 schiaparelli 0.221 lowell 0.219 canal 0.131 observers 0.123 canale 0.122 canali 0.110 irrigation 0.105 seas 0.104 drawings 0.087 1877 0.086 idea 0.079 opposition 0.072 doubling 0.071 wallace 0.068 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines in the equatorial regions from 60° N. to 60° S. Lat. on the planet Mars observed by astronomers using early low-resolution telescopes without photography. They were first described by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2015 |
68223 characters 7 sections 15 paragraphs 9 images 240 internal links 20 external links |
canals 0.649 schiaparelli 0.210 lowell 0.207 canali 0.139 canal 0.124 observers 0.117 canale 0.116 irrigation 0.099 seas 0.099 drawings 0.082 1877 0.081 19th 0.081 idea 0.074 author 0.072 streaks 0.071 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines in the equatorial regions from 60° N. to 60° S. Lat. on the planet Mars . They were first described by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2014 |
63476 characters 7 sections 14 paragraphs 9 images 236 internal links 17 external links |
canals 0.669 schiaparelli 0.249 lowell 0.205 canal 0.154 observers 0.115 canale 0.114 canali 0.103 irrigation 0.098 seas 0.098 english 0.088 misunderstanding 0.086 drawings 0.081 1877 0.080 idea 0.074 opposition 0.067 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines in the equatorial regions from 60° N. to 60° S. Lat. on the planet Mars . They were first described by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2013 |
62723 characters 7 sections 14 paragraphs 9 images 231 internal links 17 external links |
canals 0.669 schiaparelli 0.249 lowell 0.205 canal 0.154 observers 0.115 canale 0.114 canali 0.103 irrigation 0.098 seas 0.098 english 0.088 misunderstanding 0.086 drawings 0.081 1877 0.080 idea 0.074 opposition 0.067 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines in the equatorial regions from 60° N. to 60° S. Lat. on the planet Mars . They were first described by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2012 |
61159 characters 7 sections 14 paragraphs 8 images 230 internal links 17 external links |
canals 0.669 schiaparelli 0.249 lowell 0.205 canal 0.154 observers 0.115 canale 0.114 canali 0.103 irrigation 0.098 seas 0.098 english 0.088 misunderstanding 0.086 drawings 0.081 1877 0.080 idea 0.074 opposition 0.067 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines in the equatorial regions from 60° N. to 60° S. Lat. on the planet Mars . They were first described by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2011 |
59369 characters 7 sections 14 paragraphs 8 images 225 internal links 17 external links |
canals 0.666 schiaparelli 0.248 lowell 0.204 canal 0.153 observers 0.115 canale 0.114 drawings 0.108 canali 0.103 irrigation 0.098 seas 0.097 english 0.087 misunderstanding 0.085 1877 0.080 idea 0.073 opposition 0.067 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines that appeared in drawings of the planet Mars in the equatorial regions from 60° N. to 60° S. Lat., first observed by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals" (see below). The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations had revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2010 |
58724 characters 7 sections 14 paragraphs 9 images 222 internal links 13 external links |
canals 0.657 schiaparelli 0.255 lowell 0.210 canal 0.157 observers 0.118 canale 0.117 drawings 0.111 canali 0.106 irrigation 0.100 seas 0.100 english 0.090 misunderstanding 0.087 1877 0.082 idea 0.075 opposition 0.069 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines that appeared in drawings of the planet Mars in the equatorial regions from 60° N. to 60° S. Lat., first observed by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals" (see below). The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations had revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2009 |
58392 characters 7 sections 16 paragraphs 9 images 224 internal links 10 external links |
canals 0.642 schiaparelli 0.249 canal 0.216 lowell 0.205 observers 0.139 canale 0.114 drawings 0.108 canali 0.103 irrigation 0.098 seas 0.098 english 0.088 misunderstanding 0.086 1877 0.080 idea 0.074 opposition 0.067 |
For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars . These were a network of long straight lines that appeared in drawings of the planet Mars in the equatorial regions from 60° N. to 60° S. Lat., first observed by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals" (see below). The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations had revealed the "canals" to be an optical illusion , and modern high resolution mapping of the Martian surface by spacecraft shows no such features. |
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| 2008 |
50882 characters 7 sections 15 paragraphs 7 images 213 internal links 7 external links |
canals 0.641 schiaparelli 0.260 lowell 0.214 canal 0.193 observers 0.145 canale 0.119 drawings 0.113 canali 0.108 irrigation 0.102 seas 0.102 english 0.092 misunderstanding 0.089 1877 0.084 idea 0.077 opposition 0.070 |
For a time in the late 19th and early 20th centuries, it was believed that there were canals on Mars . These were a network of long straight lines that appeared in drawings of the planet Mars in the equatorial regions from 60° N. to 60° S. Lat., first observed by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals" (see below). The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. |
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| 2007 |
31769 characters 8 sections 15 paragraphs 5 images 79 internal links 6 external links |
canals 0.627 schiaparelli 0.265 lowell 0.219 canal 0.197 observers 0.148 canale 0.122 drawings 0.115 canali 0.110 irrigation 0.105 seas 0.104 english 0.094 misunderstanding 0.091 1877 0.086 idea 0.079 opposition 0.072 |
For a time in the late 19th and early 20th centuries, it was believed that there were canals on Mars . These were a network of long straight lines that appeared in drawings of the planet Mars in the equatorial regions from 60° N. to 60° S. Lat., first observed by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877 , and confirmed by later observers. Schiaparelli called these canali , which was translated into English as "canals" (see below). The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. |
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| 2006 |
17836 characters 7 sections 14 paragraphs 2 images 53 internal links 5 external links |
canals 0.666 schiaparelli 0.221 observers 0.164 canal 0.146 canale 0.136 drawings 0.128 canali 0.122 lowell 0.121 irrigation 0.116 seas 0.116 misunderstanding 0.101 notion 0.095 civilization 0.089 idea 0.087 english 0.083 |
For a time in the late 19th and early 20th centuries, it was believed that there were canals on Mars . These were a network of long straight lines that appeared in drawings of the planet Mars in the equatorial regions from 60° N. to 60° S. Lat., first observed by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877 , and confirmed by later observers. Schiaparelli called these canali , which was mistranslated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. |
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| 2005 |
13621 characters 4 sections 14 paragraphs 0 images 50 internal links 5 external links |
canals 0.633 schiaparelli 0.207 observers 0.173 canal 0.153 canale 0.143 drawings 0.135 canali 0.129 lowell 0.128 irrigation 0.122 seas 0.122 misunderstanding 0.107 notion 0.100 civilization 0.094 idea 0.092 english 0.088 |
For a time in the late 19th and early 20th centuries, it was believed that there were canals on Mars . |
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| 2004 |
11353 characters 4 sections 11 paragraphs 0 images 45 internal links 5 external links |
canals 0.675 canal 0.183 canale 0.170 drawings 0.161 schiaparelli 0.154 observers 0.137 misunderstanding 0.127 notion 0.119 civilization 0.112 english 0.104 canali 0.102 irrigation 0.097 19th 0.089 idea 0.088 straight 0.085 |
For a time in the late 19th and early 20th centuries, it was believed that there were canals on Mars . |