https://www.23hq.com/tag/calculator en-us 23people http://www.23hq.com/resources/um-style/logo-20.gif http://blogs.law.harvard.edu/tech/rss https://www.23hq.com/rss/tag/calculator false https://www.23hq.com/mprove/photo/21760523 <p><a href="https://www.23hq.com/mprove/photo/21760523"><img src="https://www.23hq.com/16171062/21760523_9d8910d5737ee37e9844d310211b2012_standard.jpg" width="460" height="307" class="23-standard"/></a></p><p>Brunsviga Rechenmaschine aus dem Star-Club</p><p>Photo by <a href="https://www.23hq.com/mprove/">mprove</a></p> https://www.23hq.com/mprove/photo/21760523 Tue, 27 Oct 2015 18:45:44 GMT https://www.23hq.com/mprove/photo/20740794 <p><a href="https://www.23hq.com/mprove/photo/20740794"><img src="https://www.23hq.com/16171062/20740794_6a2ddc8eac8501429daf213c391075ca_standard.jpg" width="460" height="345" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/mprove/">mprove</a></p> https://www.23hq.com/mprove/photo/20740794 Tue, 14 Apr 2015 19:22:02 GMT https://www.23hq.com/mprove/photo/20740793 <p><a href="https://www.23hq.com/mprove/photo/20740793"><img src="https://www.23hq.com/16171062/20740793_82db929a366d05cf29c15c20770a14ec_standard.jpg" width="460" height="345" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/mprove/">mprove</a></p> https://www.23hq.com/mprove/photo/20740793 Tue, 14 Apr 2015 19:21:53 GMT https://www.23hq.com/15°C/photo/11625606 <p><a href="https://www.23hq.com/15°C/photo/11625606"><img src="https://www.23hq.com/9484735/11625606_27d7fe9c02595edf0bdc0515f73d3d65_standard.jpg" width="460" height="345" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/15°C/">15°C</a></p> https://www.23hq.com/15°C/photo/11625606 Wed, 22 May 2013 23:27:42 GMT https://www.23hq.com/claudecf/photo/5671131 <p><a href="https://www.23hq.com/claudecf/photo/5671131"><img src="https://www.23hq.com/5473648/5671131_4b398f7410f4f860a4db3fc8e396fcab_standard.jpg" width="460" height="313" class="23-standard"/></a></p><p>Conservatoire des Arts et Métiers, Paris<br /> Blaise Pascal's calculator</p><p>Photo by <a href="https://www.23hq.com/claudecf/">claudecf</a></p> https://www.23hq.com/claudecf/photo/5671131 Thu, 03 Jun 2010 08:50:59 GMT https://www.23hq.com/uid0/photo/4636010 <p><a href="https://www.23hq.com/uid0/photo/4636010"><img src="https://www.23hq.com/4394483/4636010_7d57a30533bdc8714f498846f0ac5d03_standard.jpg" width="460" height="307" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/uid0/">uid0</a></p> https://www.23hq.com/uid0/photo/4636010 Tue, 14 Jul 2009 07:05:17 GMT https://www.23hq.com/uid0/photo/4636002 <p><a href="https://www.23hq.com/uid0/photo/4636002"><img src="https://www.23hq.com/4394490/4636002_cd0715825bff47b13b22076c4757a7ee_standard.jpg" width="460" height="307" class="23-standard"/></a></p><p>Dalton Adding, Listing, and Calculating Machine</p><p>Photo by <a href="https://www.23hq.com/uid0/">uid0</a></p> https://www.23hq.com/uid0/photo/4636002 Tue, 14 Jul 2009 07:00:14 GMT https://www.23hq.com/iam_mia/photo/2177869 <p><a href="https://www.23hq.com/iam_mia/photo/2177869"><img src="https://www.23hq.com/1192287/2177869_f9c5a0a5aa28979ad13a91b01d7caf64_standard.jpg" width="460" height="345" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/iam_mia/">iam_mia</a></p> https://www.23hq.com/iam_mia/photo/2177869 Wed, 04 Jul 2007 20:48:31 GMT https://www.23hq.com/pngallery/photo/1028943 <p><a href="https://www.23hq.com/pngallery/photo/1028943"><img src="https://www.23hq.com/777152/1028943_e8867fb58c5f6939499b73a550929a85_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028943 Tue, 15 Aug 2006 16:27:09 GMT https://www.23hq.com/pngallery/photo/1028937 <p><a href="https://www.23hq.com/pngallery/photo/1028937"><img src="https://www.23hq.com/777152/1028937_bcbfa57bd8df1b450a2326d2131b5573_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028937 Tue, 15 Aug 2006 16:26:54 GMT https://www.23hq.com/pngallery/photo/1028936 <p><a href="https://www.23hq.com/pngallery/photo/1028936"><img src="https://www.23hq.com/777153/1028936_16568e54c86e68dd4b89cc3d1c188ad8_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028936 Tue, 15 Aug 2006 16:26:52 GMT https://www.23hq.com/pngallery/photo/1028934 <p><a href="https://www.23hq.com/pngallery/photo/1028934"><img src="https://www.23hq.com/777152/1028934_318e1da670b0c4cbf4c77dd9f9fc1e1d_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028934 Tue, 15 Aug 2006 16:26:48 GMT https://www.23hq.com/pngallery/photo/1028931 <p><a href="https://www.23hq.com/pngallery/photo/1028931"><img src="https://www.23hq.com/777152/1028931_ef6bfdab3485f50c78986980d8875655_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028931 Tue, 15 Aug 2006 16:26:41 GMT https://www.23hq.com/pngallery/photo/1028929 <p><a href="https://www.23hq.com/pngallery/photo/1028929"><img src="https://www.23hq.com/777151/1028929_f81cbbd763561cd7fc23fdb579c24e99_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028929 Tue, 15 Aug 2006 16:26:36 GMT https://www.23hq.com/pngallery/photo/1028925 <p><a href="https://www.23hq.com/pngallery/photo/1028925"><img src="https://www.23hq.com/777161/1028925_60b44c1b580fd6edd66f4b976180e752_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028925 Tue, 15 Aug 2006 16:26:21 GMT https://www.23hq.com/pngallery/photo/1028920 <p><a href="https://www.23hq.com/pngallery/photo/1028920"><img src="https://www.23hq.com/777161/1028920_92ab113377eec115c76288a7ee4bf693_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028920 Tue, 15 Aug 2006 16:26:06 GMT https://www.23hq.com/pngallery/photo/1028919 <p><a href="https://www.23hq.com/pngallery/photo/1028919"><img src="https://www.23hq.com/777152/1028919_df0add0c20bbaa9a23a755e853e7d752_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028919 Tue, 15 Aug 2006 16:26:01 GMT https://www.23hq.com/pngallery/photo/1028916 <p><a href="https://www.23hq.com/pngallery/photo/1028916"><img src="https://www.23hq.com/777152/1028916_f6f0e03938096956f0c682f5da111e24_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1028916 Tue, 15 Aug 2006 16:25:52 GMT https://www.23hq.com/pngallery/photo/1017218 <p><a href="https://www.23hq.com/pngallery/photo/1017218"><img src="https://www.23hq.com/777152/1017218_ea715e2cef69202d2fe28a25c9985601_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1017218 Sat, 12 Aug 2006 07:35:53 GMT https://www.23hq.com/pngallery/photo/1017217 <p><a href="https://www.23hq.com/pngallery/photo/1017217"><img src="https://www.23hq.com/777161/1017217_fe51fcbdd8efa689dc077f7b03698a2d_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1017217 Sat, 12 Aug 2006 07:35:46 GMT https://www.23hq.com/pngallery/photo/1017215 <p><a href="https://www.23hq.com/pngallery/photo/1017215"><img src="https://www.23hq.com/777152/1017215_857d8eede9d865e7dd323250c16f65b4_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1017215 Sat, 12 Aug 2006 07:35:35 GMT https://www.23hq.com/pngallery/photo/1017213 <p><a href="https://www.23hq.com/pngallery/photo/1017213"><img src="https://www.23hq.com/777161/1017213_d4555cffd5c2755f72e0ace34e716b12_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1017213 Sat, 12 Aug 2006 07:35:23 GMT https://www.23hq.com/pngallery/photo/1017212 <p><a href="https://www.23hq.com/pngallery/photo/1017212"><img src="https://www.23hq.com/777149/1017212_ccab8f4f5cd502d12e2df7230487b40c_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1017212 Sat, 12 Aug 2006 07:35:09 GMT https://www.23hq.com/pngallery/photo/1017211 <p><a href="https://www.23hq.com/pngallery/photo/1017211"><img src="https://www.23hq.com/777151/1017211_2da5e3984f26b4f6c74e6e5a6cf30e39_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1017211 Sat, 12 Aug 2006 07:35:04 GMT https://www.23hq.com/pngallery/photo/1017209 <p><a href="https://www.23hq.com/pngallery/photo/1017209"><img src="https://www.23hq.com/777152/1017209_d23a7120d3ace0ec8d1ac88467124329_standard.jpg" width="150" height="150" class="23-standard"/></a></p><p></p><p>Photo by <a href="https://www.23hq.com/pngallery/">pngallery</a></p> https://www.23hq.com/pngallery/photo/1017209 Sat, 12 Aug 2006 07:34:37 GMT https://www.23hq.com/guan/photo/716585 <p><a href="https://www.23hq.com/guan/photo/716585"><img src="https://www.23hq.com/580567/716585_b58240484453cb198c4ace778d2fb0c9_standard.jpg" width="345" height="460" class="23-standard"/></a></p><p>HP 49G calculator</p><p>Photo by <a href="https://www.23hq.com/guan/">Guan Yang</a></p> https://www.23hq.com/guan/photo/716585 Sat, 27 May 2006 16:03:48 GMT https://www.23hq.com/insky/photo/85275 <p><a href="https://www.23hq.com/insky/photo/85275"><img src="https://www.23hq.com/54884/85275_d97a46f9fbd793d332236affbdc5027b_standard.jpg" width="460" height="364" class="23-standard"/></a></p><p>battery included</p><p>Photo by <a href="https://www.23hq.com/insky/">insky</a></p> https://www.23hq.com/insky/photo/85275 Sat, 27 Aug 2005 02:56:16 GMT