<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Welcome to Psubs Ian!</div><div>Ian is a Canadian robotics & electronics instructor that I met through a </div><div>couple of his courses I was taking on "UDEMY" an online short course provider.</div><div>He aims his courses at 11 year old level lol.</div><div>Ian is a robotics engineering graduate who has been a science & technology</div><div>Instructor for 30 years, worked in R&D & wrote a book on video production.</div><div>Of particular interest to me is that he has built an underwater manipulator.</div><div>By the way Ian, Hank is a fellow Canadian.</div><div>Regards Alan</div><div><br></div><div><br>On 28/01/2020, at 2:31 PM, Ian Juby via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">NOICE! You should be proud, that's impressive and inspirational. Thanks for sharing.<div>For the record, I do have the math skills for buoyancy. And every single ROV I tested and tried to pre-balance it before a test dive. I don't think I ever got it right once. It was always too light. Came back to the science camp after the test dive with one and one of the counselors asked how it went. I told him "Oh, it wasn't heavy enough to sink." He laughed and said "I'll be if you built a boat, it wouldn't float!" Four months later my pontoon boat I built to launch the 300 pound ROV from, sunk in a storm. lol</div><div>The big naval submarine construction ports have an entire team of people with a boat load of computers whose sole job it is to weigh every single bolt, piece of equipment, even the volume of the welds, to get the buoyancy right. So I'm with you when you say the best way is to stick it in the water and add the weight till you get it right. :D</div><div><br></div><div>Ian</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jan 27, 2020 at 8:08 PM hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px"><div dir="ltr"><span><a href="https://www.youtube.com/watch?v=GDMBVtkKSrw" rel="nofollow" target="_blank">The Deepest Diving Homemade Submarine In The World | Elementary 3000</a></span><div><br></div><div id="gmail-m_-5921743761967048715ydpa40c7173enhancr_card_0725236640" style="max-width:400px;font-family:"Helvetica Neue","Segoe UI",Helvetica,Arial,sans-serif"><a href="https://www.youtube.com/watch?v=GDMBVtkKSrw" style="text-decoration:none;color:rgb(0,0,0)" rel="nofollow" target="_blank"><table border="0" cellpadding="0" cellspacing="0" style="max-width:400px"><tbody><tr><td width="400"><table border="0" cellpadding="0" cellspacing="0" width="100%" style="max-width:400px;border-width:1px;border-style:solid;border-color:rgb(224,228,233);border-radius:2px"><tbody><tr><td bgcolor="#000000" valign="top" height="175" style="background-color:rgb(0,0,0);background-size:cover;border-radius:2px 2px 0px 0px;min-height:175px"><table border="0" cellpadding="0" cellspacing="0" style="width:100%"><tbody><tr><td bgcolor="transparent" valign="top" style="background-color:transparent;border-radius:2px 2px 0px 0px;min-height:175px"><table border="0" height="175" style="width:100%;min-height:175px"><tbody><tr><td style="text-align:left;padding:15px 0px 0px 15px;vertical-align:top"></td><td style="text-align:right;padding:15px 15px 0px 0px;vertical-align:top"><div></div></td></tr></tbody></table></td></tr></tbody></table></td></tr><tr><td><table border="0" align="center" cellpadding="0" cellspacing="0" style="background:rgb(255,255,255);width:100%;max-width:400px;border-radius:0px 0px 2px 2px;border-top:1px solid rgb(224,228,233)"><tbody><tr><td style="background-color:rgb(255,255,255);padding:16px 0px 16px 12px;vertical-align:top;border-radius:0px 0px 0px 2px"><img src="https://s.yimg.com/nq/storm/assets/enhancrV2/23/logos/youtube.png" height="36" style="min-width: 36px; margin-top: 3px;"></td><td style="vertical-align:middle;padding:12px 24px 16px 12px;width:99%;font-family:"Helvetica Neue","Segoe UI",Helvetica,Arial,sans-serif;border-radius:0px 0px 2px"><h2 style="font-size:14px;line-height:19px;margin:0px 0px 6px;font-family:"Helvetica Neue","Segoe UI",Helvetica,Arial,sans-serif;color:rgb(38,40,42)">The Deepest Diving Homemade Submarine In The World | Elementary 3000</h2><p style="font-size:12px;line-height:16px;margin:0px;color:rgb(151,155,167)">In this video I am giving a tour of my homemade submarine, Elementary 3000. E3000 is the deepest diving homemade...</p></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></a></div><div><br></div><div><br></div>Hank</div></div></div>_______________________________________________<br>
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