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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://mastodon.social/users/gutenberg_org/statuses/113979250172657680">Project Gutenberg (gutenberg_org@mastodon.social)'s status on Tuesday, 11-Feb-2025 14:42:50 JST</a><a href="https://mastodon.social/@gutenberg_org" title="gutenberg_org@mastodon.social"><img src="https://gnusocial.jp/avatar/132842-48-20230813103534.webp" width="48" height="48" alt="Project Gutenberg" style="position: absolute; left: 0; top: 0;">Project Gutenberg</a></section><article><p>"I did not think; I investigated."</p><p>German physicist Wilhelm Conrad Röntgen died <a href="https://mastodon.social/tags/OTD" rel="tag">#OTD</a> in 1923.</p><p>On 8 November 1895, he produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays, an achievement that earned him the inaugural Nobel Prize in Physics in 1901. The non-SI unit of radiation exposure, the roentgen (R), is also named after him.</p><p><a href="https://en.wikipedia.org/wiki/Wilhelm_R%C3%B6ntgen" rel="nofollow">https://en.wikipedia.org/wiki/Wilhelm_R%C3%B6ntgen</a></p><p>Books about Röntgen at PG:<br><a href="https://www.gutenberg.org/ebooks/search/?query=R%C3%B6ntgen&amp;submit_search=Search" rel="nofollow">https://www.gutenberg.org/ebooks/search/?query=R%C3%B6ntgen&amp;submit_search=Search</a></p><p><a href="https://mastodon.social/tags/books" rel="tag">#books</a> <a href="https://mastodon.social/tags/physics" rel="tag">#physics</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/4545026#notice-8898228">In conversation</a><time datetime="2025-02-11T14:42:50+09:00" title="Tuesday, 11-Feb-2025 14:42:50 JST">about 2 months ago</time> <span>from <span><a href="https://mastodon.social/@gutenberg_org/113979250172657680" rel="external" title="Sent from mastodon.social via ActivityPub">mastodon.social</a></span></span><a href="https://mastodon.social/@gutenberg_org/113979250172657680">permalink</a><h4>Attachments</h4><ol><li><label><a rel="external" href="https://gnusocial.jp/attachment/4117098">Hand mit Ringen (Hand with Rings): a print of one of the first X-rays by Wilhelm Röntgen (1845–1923) of the left hand of his wife Anna Bertha Ludwig. It was presented to Professor Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896.</a></label><br><a href="https://files.mastodon.social/media_attachments/files/113/979/215/766/620/295/original/465c7b547e93bab5.gif" rel="external">https://files.mastodon.social/media_attachments/files/113/979/215/766/620/295/original/465c7b547e93bab5.gif</a></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/4117099">Photo of Wilhelm Conrad Röntgen.</a></label><br><a href="https://files.mastodon.social/media_attachments/files/113/979/236/333/251/149/original/e84f45c4062a1eeb.jpg" rel="external">https://files.mastodon.social/media_attachments/files/113/979/236/333/251/149/original/e84f45c4062a1eeb.jpg</a></li><li><article><header><div>Domain not in remote thumbnail source whitelist: www.gutenberg.org</div><h5><a href="https://www.gutenberg.org/ebooks/search/?query=R%C3%B6ntgen&amp;submit_search=Search#books">Books: Röntgen (sorted by popularity)</a></h5><div></div></header><div>Project Gutenberg offers 75,168 free eBooks for Kindle, iPad, Nook, Android, and iPhone.</div><footer></footer></article></li></ol></footer></blockquote>

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Project Gutenberg (gutenberg_org@mastodon.social)'s status on Tuesday, 11-Feb-2025 14:42:50 JST Project Gutenberg
"I did not think; I investigated."
German physicist Wilhelm Conrad Röntgen died #OTD in 1923.
On 8 November 1895, he produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays, an achievement that earned him the inaugural Nobel Prize in Physics in 1901. The non-SI unit of radiation exposure, the roentgen (R), is also named after him.
https://en.wikipedia.org/wiki/Wilhelm_R%C3%B6ntgen
Books about Röntgen at PG:
https://www.gutenberg.org/ebooks/search/?query=R%C3%B6ntgen&submit_search=Search
#books #physics
In conversationabout 2 months ago from mastodon.socialpermalink
Attachments
1. Hand mit Ringen (Hand with Rings): a print of one of the first X-rays by Wilhelm Röntgen (1845–1923) of the left hand of his wife Anna Bertha Ludwig. It was presented to Professor Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896.
  https://files.mastodon.social/media_attachments/files/113/979/215/766/620/295/original/465c7b547e93bab5.gif
2. Photo of Wilhelm Conrad Röntgen.
  https://files.mastodon.social/media_attachments/files/113/979/236/333/251/149/original/e84f45c4062a1eeb.jpg
3. Domain not in remote thumbnail source whitelist: www.gutenberg.org
  Books: Röntgen (sorted by popularity)
  Project Gutenberg offers 75,168 free eBooks for Kindle, iPad, Nook, Android, and iPhone.

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