milligrams of antimatter to energize tons of hydrogen reaction mass, it’s an idea
> On 160617, at 8:39 PM, Brent Meeker <[email protected]> wrote: > > Yeah, I was a friend of friend of Bob Forward and I once had dinner with him. > At the time though he was pushing anti-matter powered spaceships; which I > thought was a crank idea. > > Brent > > On 6/16/2016 5:18 AM, Hans Moravec wrote: >>> On Jun 15, 2016, at 23:48 , Brent Meeker <[email protected]> wrote: >>> >>> When you look somewhere new, you see new things. To bad Joe Weber didn't >>> live to see this. >>> >>> Brent >> And Bob Forward (Robert L. Forward), who was once Weber's grad student, and >> continued gravity related research and publication until his death in 2002. >> >>> On 6/15/2016 7:25 PM, John Clark wrote: >>>> After analyzing the data from LIGO's brief engineering run the scientists >>>> there just announced they have found a second Black Hole merger. A Black >>>> Hole of 14 solar masses merged with one of 8 solar masses and produced a >>>> Black Hole of 21 solar masses and gravitational waves with 1 solar mass of >>>> energy. It happened 1.4 billion light years away, about the same distance >>>> as the first merger that was announced a few months ago, but the signal >>>> was weaker because the Black Holes involved were smaller (14 and 8 vs 36 >>>> and 29) and also because the orbit of the Black Holes was more edge on >>>> relative to the Earth. Edge on means the signal is weaker but it also >>>> means it's easier to determine the spin, so unlike the first detection >>>> this time we can say with certainty that at least one of the Black Holes >>>> was spinning. And although weaker the signal lasted longer, almost a full >>>> second versus a fifth of a second the first time because being smaller the >>>> holes generated waves with higher frequencies that LIGO is more sensitive >>>> to. >>>> >>>> And they're looking at at least one other suspected merger but they're >>>> only 85% certain it's real and that's not good enough to claim discovery, >>>> but there may be others so there may be a third announcement before long. >>>> Not bad for observing for only 18 days. The instrument was running at only >>>> one third power but that was still good enough to determine that 2 mirrors >>>> 4 kilometers apart had changed their distance by less than a billionth of >>>> a nanometer. I can't wait for September when the 2 LIGOs get back online >>>> and are joined by a third detector, VIRGO in Italy. >>>> >>>> http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.241103 >>>> >>>> John K Clark >>>> -- >>>> You received this message because you are subscribed to the Google Groups >>>> "Everything List" group. >>>> To unsubscribe from this group and stop receiving emails from it, send an >>>> email to [email protected]. >>>> To post to this group, send email to [email protected]. >>>> Visit this group at https://groups.google.com/group/everything-list. >>>> For more options, visit https://groups.google.com/d/optout. >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Everything List" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/everything-list. >>> For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
