<div dir="ltr">Gravitational waves were the subject of my PhD dissertation. I worked for LIGO for several years before I switched to work in neuroscience. I have about 40 papers authored with the collaboration. My advisor spent all his science career observing noise. Everybody knew it would have been one of the most incredible discoveries in science if we detect GWs but it was very frustrating to look at years of data that was only noise. <div>This is now changed and it is an amazing feeling. <br>A new window on the universe is now open. </div><div><br></div><div>Giovanni </div><img src="http://t.sidekickopen35.com/e1t/o/5/f18dQhb0S7ks8dDMPbW2n0x6l2B9gXrN7sKj6v4LR3dW8qSMPY7dKPKPW7fRYjz2zlZNzW5CvrmQ1k1H6H0?si=6537132302139392&pi=b937e721-d725-401a-cfc3-b68dbca78656" style="display:none!important" height="1" width="1"></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Feb 11, 2016 at 11:34 AM, Giulio Prisco <span dir="ltr"><<a href="mailto:giulio@gmail.com" target="_blank">giulio@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div></div><div>I'm wondering how many zillions of sentient beings died as a result of the black hole fusion event.</div><span class=""><div><br>On Feb 11, 2016, at 5:13 PM, John Clark <<a href="mailto:johnkclark@gmail.com" target="_blank">johnkclark@gmail.com</a>> wrote:<br><br></div></span><div><div class="h5"><blockquote type="cite"><div><div dir="ltr"><font size="4">On Sept. 14<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>at 4am the LIGO <div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">detector in </div>Livingston<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> Louisiana </div>detected <font face="arial, helvetica, sans-serif">a burst </font><div class="gmail_default" style="display:inline"><font face="arial, helvetica, sans-serif">of gravitational waves, 7 milliseconds later the LIGO detector in Hanford Washington detected the same thing. The possibility of this being due to chance is </font></div>vanishingly small<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">. What they detected was 2 black holes circling each other at 250 times a second, one was 36 times the mass of the sun and the other 29 times. The entire signal only lasted for a fifth of a second. </div></font><div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif"><a href="http://www.nytimes.com/2016/02/12/science/ligo-gravitational-waves-black-holes-einstein.html" target="_blank">http://www.nytimes.com/2016/02/12/science/ligo-gravitational-waves-black-holes-einstein.html</a><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div></font></div><div><font face="arial, helvetica, sans-serif"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"><br></div></font></div><div><font face="arial, helvetica, sans-serif" size="4"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">John K Clark</div></font></div><div><font face="arial, helvetica, sans-serif"><br></font></div></div>
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