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 <b>invention</b>
-   <a href=https://www.nsf.gov/about/history/vbush1945.htm>research, development</a>
+   <a href=https://nsf-gov-resources.nsf.gov/2023-04/EndlessFrontier75th_w.pdf>research, development</a>
       <a href=https://press.princeton.edu/books/hardcover/9780691186627/science-the-endless-frontier>legacy</a>
    <a href=https://www.ted.com/talks/neil_gershenfeld_ready_fire_aim_may_2023>ready-fire-aim</a>
-      <a href=http://cba.mit.edu/docs/theses/97.02.fletcher.pdf>ready</a>, <a href=http://cba.mit.edu/docs/papers/97.01.science.pdf>fire</a>, <a href=http://cba.mit.edu/docs/papers/07.11.slots.pdf>aim</a>, <a href=https://berndschoner.com/>aim</a>
+      <a href=http://cba.mit.edu/docs/theses/97.02.fletcher.pdf>ready</a>, <a href=http://cba.mit.edu/docs/papers/97.01.science.pdf>fire</a>, <a href=http://cba.mit.edu/docs/papers/07.11.slots.pdf>aim</a>, <a href=https://www.barnesandnoble.com/w/the-tech-entrepreneurs-survival-guide-bernd-schoner/1117306648>aim</a>
    <a href=https://calendar.mit.edu>traffic</a>
-      <a href=http://ng.cba.mit.edu/show/video/09.04.yoyo_play.mp4>fire</a>, <a href=http://ng.cba.mit.edu/show/video/09.04.field_imaging.mp4>ready</a>, <a href=http://ng.cba.mit.edu/show/video/09.04.Spirit_Chair.mp4>fire</a>, <a href=http://www.elesys-na.com>aim</a>
+      <a href=http://ng.cba.mit.edu/show/video/09.04.yoyo_play.mp4>fire</a>, <a href=http://ng.cba.mit.edu/show/video/09.04.field_imaging.mp4>ready</a>, <a href=http://ng.cba.mit.edu/show/video/09.04.Spirit_Chair.mp4>fire</a>, <a href=https://www.nidec.com/en/corporate/network/group/nidec-elesys/>aim</a>
    <a href=http://news.mit.edu/2015/report-entrepreneurial-impact-1209>ecosystems</a>
    <a href=https://academany.org/fab-all-in/>access</a>
       <a href=http://web.mit.edu/fnl/women/women.html>gender</a>, <a href= https://news.mit.edu/2020/letter-systemic-racism-mit-0701>race</a>, ...