[time-nuts] Re: Trinity Timing - How far we've come

[paul swed]

Hello to the group.
It is fascinating reading. Interesting on the cables just a few lines in
the text. But much of the control was actual twisted pair telephone cable.
They needed to make I believe a 8 mile detour around the gadget. Then there
are explanations of the issues with those long cables and how they worked
around them. The firing cable was buried coax.
With respects to the countdown I wonder also. I firmly believe the
countdown came from the German V2 rocket program. So I have heard.
With respect to timing the supporting experiments and cameras would have
needed the accuracy. It looks like pictures taken were faster than 1 ms.
Thats a lot of film.
So I suspect at detonation or just a bit after the old tuning fork would
have had a big phase jump...
Thanks for a great read.
Regards
Paul


On Fri, Jul 28, 2023 at 12:00 AM Magnus Danielson via time-nuts <
time-nuts at lists.febo.com> wrote:

> Hi,
>
> Consider that the concept of count-down time may not even have existed
> but added in film for dramatical effect in the film.
>
> Count-downs as far as I know was used in space-race, and become a strong
> dramatic concept at that time with televised launches etc.
>
> Rather, if the timing was off a little here or there as such is not the
> important part, but all the recordings was triggered with delay circuits
> etc. or coordinated start, all depeding on their characteristics, is
> enough. The relative timing is all that matters.
>
> For space there is increasing need to hit a "window of opportunity".
> because orbital mechanics etc. Today this also considers other
> satellites and trash for safety.
>
> Cheers,
> Magnus
>
> On 2023-07-27 19:56, Brooke Clarke via time-nuts wrote:
> > Hi:
> >
> > On the Tube Collectors mailing list there was a discussion about the
> > Nixie countdown display used in Oppenheimer and how they did not exist
> > at the time of Trinity.
> >
> > Is there a paper similar to the one on timing that has an illustration
> > of the control panel and countdown timer?
> >
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