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ឯកសារ:Autograph of Heinrich Hertz.png

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ការ​ពិពណ៌នា This is Heinrich Rudolf Hertz's autograph, from Oliver Heaviside: Sage in Solitude (ISBN 0-87942-238-6), p. 111. The image is reprinted courtesy of the Burndy Library (as stated in the credits in the back of the book, p. 318), but its age implies that it's public domain. (It must have been made in 1894 or earlier.) It was scanned on an Epson Perfection 1250 at 400dpi, cleaned up (some text was showing through the back) in Photoshop, reduced to indexed grayscale, and saved as PNG using the 'Save for Web' optimizer.
កាលបរិច្ឆេទ circa ១៨៩៤
date QS:P,+1894-00-00T00:00:00Z/9,P1480,Q5727902
  • ២៨ ខែកក្កដា ២០០៤ (original upload date)
ប្រភព Transferred from en.wikipedia to Commons.
អ្នក​និពន្ធ

Heinrich Rudolf Hertz

ទំរង់​ផ្សេង​ទៀត
រូបភាព​​ signature​​​នេះ​ គួរ​តែ​បង្កើត​ឡើង​វិញដោយប្រើក្រាភិក​វ៉ិចទ័រ ដែលជា​ប្រភេទហ្វាល់ SVG ។ ការ​បង្កើត​រូបភាព​ជា​ហ្វាល់ SVG ផ្តល់​នូវ​អត្ថ​ប្រយោជ​ន៍​ជាច្រើន​។ ចំពោះព័ត៌មាន​បន្ថែម សូមមើល Commons:Media for cleanup ។ ប្រសិន​បើ​ទំរង់ SVG នៃ​រូបភាព​នេះ​ត្រូវ​បាន​បង្កើត​រួចរាល់ហើយ សូមអាប់ឡូដ​វា។ បន្ទាប់ពី​អាប់ឡូដ​ជា​ទំរង់ SVG សូម​ជំនួស​ទំព័រគំរូ​នេះ​ដោយ {{vector version available|ឈ្មោះ​រូបភាព​ថ្មី.svg}} ។

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  • 2004-07-28 00:51 Grendelkhan 416×206×8 (8905 bytes) This is Heinrich Rudolf Hertz's autograph, from ''Oliver Heaviside: Sage in Solitude'' ({{ISBN|0-87942-238-6}}), p. 111. The image is reprinted courtesy of the Burndy Library (as stated in the credits in the back of the book, p. 318), but its age implies that

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បច្ចុប្បន្នម៉ោង២២:០៤ ថ្ងៃសុក្រ ទី០១ ខែធ្នូ ឆ្នាំ២០០៦កូន​រូប​ភាព​​សម្រាប់​កំណែ​ (version) កាល​ពី​​ ម៉ោង២២:០៤ ថ្ងៃសុក្រ ទី០១ ខែធ្នូ ឆ្នាំ២០០៦៤១៦ × ២០៦ (៩គីឡូបៃ)GeorgHH{{Information |Description=This is Heinrich Rudolf Hertz's autograph, from ''Oliver Heaviside: Sage in Solitude'' (ISBN 0-87942-238-6), p. 111. The image is reprinted courtesy of the Burndy Library (as stated in the credits in the back of the book, p. 318

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