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href="/archive/issues/2004/">2004</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2005/">2005</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2006/">2006</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2007/">2007</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2008/">2008</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 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href="/archive/issues/2023/">2023</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2024/">2024</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2025/">2025</a></div></div></div><div class="issue__list-8JHD2"><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1851/12-27/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/93E1576D-CB32-409F-B47BF6ABB033CAAB_source.jpg?w=600" alt="Scientific American Magazine Vol 7 Issue 15" srcSet="https://static.scientificamerican.com/sciam/cache/file/93E1576D-CB32-409F-B47BF6ABB033CAAB_source.jpg?w=300 300w, 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loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1851-12-20">December 1851</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1851/12-13/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/F2FE393C-A69E-4C56-8E0125A8E3F865CA_source.jpg?w=600" alt="Scientific American Magazine Vol 7 Issue 13" srcSet="https://static.scientificamerican.com/sciam/cache/file/F2FE393C-A69E-4C56-8E0125A8E3F865CA_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/F2FE393C-A69E-4C56-8E0125A8E3F865CA_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1851-12-13">December 1851</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1851/12-06/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/CC707FEA-97D5-47C4-A68B2967E4DE1271_source.jpg?w=600" alt="Scientific American Magazine Vol 7 Issue 12" srcSet="https://static.scientificamerican.com/sciam/cache/file/CC707FEA-97D5-47C4-A68B2967E4DE1271_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/CC707FEA-97D5-47C4-A68B2967E4DE1271_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1851-12-06">December 1851</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1851/11-29/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/D1D7856C-5462-4EBA-9C0B5FE1B4B9BA4C_source.jpg?w=600" alt="Scientific American Magazine Vol 7 Issue 11" srcSet="https://static.scientificamerican.com/sciam/cache/file/D1D7856C-5462-4EBA-9C0B5FE1B4B9BA4C_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/D1D7856C-5462-4EBA-9C0B5FE1B4B9BA4C_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1851-11-29">November 1851</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1851/11-22/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img 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width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1851-10-25">October 1851</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1851/10-18/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/1D68D181-F2AE-411B-A44942F49EA95DD5_source.jpg?w=600" alt="Scientific American Magazine Vol 7 Issue 5" srcSet="https://static.scientificamerican.com/sciam/cache/file/1D68D181-F2AE-411B-A44942F49EA95DD5_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/1D68D181-F2AE-411B-A44942F49EA95DD5_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1851-10-18">October 1851</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1851/10-11/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/47BFE989-60BF-4A02-9AF0DB0914711C99_source.jpg?w=600" alt="Scientific American Magazine Vol 7 Issue 4" srcSet="https://static.scientificamerican.com/sciam/cache/file/47BFE989-60BF-4A02-9AF0DB0914711C99_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/47BFE989-60BF-4A02-9AF0DB0914711C99_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1851-10-11">October 1851</time></div></div></div></a></div><div class="list__item--tR3J"><a 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