உணாத்தி (Tamil Wikipedia)

Analysis of information sources in references of the Wikipedia article "உணாத்தி" in Tamil language version.

refsWebsite

Global rank Tamil rank

2books.google.com

3^rd place

6^th place

1history-computer.com

low place

9,015^th place

1web.archive.org

1^st place

1^st place

163^rd place

137^th place

books.google.com

Icons of Invention: The Makers of the Modern World from Gutenberg to Gates. ABC-CLIO. p. 153.
Scientific American Inventions and Discoveries: All the Milestones in Ingenuity--From the Discovery of Fire to the Invention of the Microwave Oven. John Wiley & Sons. p. 311.

google.com

"US Patent 1,647, Improvement in the mode of communicating information by signals by the application of electro-magnetism, June 20, 1840". Archived from the original on மே 24, 2012. பார்க்கப்பட்ட நாள் ஏப்ரல் 1, 2013. {{cite web}}: Check date values in: |access-date= (help)

history-computer.com

"The electromechanical relay of Joseph Henry". Georgi Dalakov.

web.archive.org

"US Patent 1,647, Improvement in the mode of communicating information by signals by the application of electro-magnetism, June 20, 1840". Archived from the original on மே 24, 2012. பார்க்கப்பட்ட நாள் ஏப்ரல் 1, 2013. {{cite web}}: Check date values in: |access-date= (help)