<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:Arial,Helvetica,sans-serif">On Thu, Jun 18, 2020 at 3:53 AM Giulio Prisco via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org">extropy-chat@lists.extropy.org</a>> wrote:</span><br></div></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr"><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><i>
<span class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font size="4">>> </font></span><font size="4">T</font></i><font size="4">he only thing I can think of that you could mine on the moon that<span class="gmail_default" style="font-family:arial,helvetica,sans-serif"> </span>would be worth taking back to earth would be Helium-3, and even then<span class="gmail_default" style="font-family:arial,helvetica,sans-serif"> </span>only when Aneutronic Fusion becomes feasible.</font></blockquote></blockquote><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br></blockquote><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><i>
<span class="gmail_default" style="font-family:arial,helvetica,sans-serif">> </span>There are promising indications that using helium-3 in fusion reactors<span class="gmail_default" style="font-family:arial,helvetica,sans-serif"> </span>could be the way to achieve practical nuclear fusion.</i></blockquote><div><br></div><div class="gmail_default" style=""><font face="arial, helvetica, sans-serif"></font><font size="4">I hope so but even practical Deuterium/Tritium fusion power has proven to be extremely difficult to achieve, and it's easier than Aneutronic Fusion. Even if it does become a practical source of electrical power Helium-3 would face competition from an element that is far easier to obtain, Boron (20 Mule Team Borax is full of it) because Boron can also achieve Aneutronic Fusion, although it wouldn't be easy.</font></div><div class="gmail_default" style=""><font size="4"><br></font></div><div class="gmail_default" style=""><font size="4"> John K Clark</font></div></div></div>