Re: Abridged version - Alarm system transformer + power supply

[krw@xxxxxxxxx]

On Fri, 29 Nov 2013 19:16:42 -0600, The Daring Dufas
<the-daring-dufas@xxxxxxxxxxxxxxxxx> wrote:

>On 11/29/2013 5:57 PM, krw@xxxxxxxxx wrote:
>> On Fri, 29 Nov 2013 06:11:41 -0600, The Daring Dufas
>> <the-daring-dufas@xxxxxxxxxxxxxxxxx> wrote:
>>
>>> On 11/28/2013 11:36 PM, Tony Hwang wrote:
>>>> The Daring Dufas wrote:
>>>>> On 11/28/2013 5:10 PM, Tony Hwang wrote:
>>>>>> The Daring Dufas wrote:
>>>>>>> On 11/28/2013 11:38 AM, krw@xxxxxxxxx wrote:
>>>>>>>> On Thu, 28 Nov 2013 10:11:27 -0600, The Daring Dufas
>>>>>>>> <the-daring-dufas@xxxxxxxxxxxxxxxxx> wrote:
>>>>>>>>
>>>>>>>>> On 11/28/2013 9:37 AM, Stormin Mormon wrote:
>>>>>>>>>> On 11/28/2013 12:13 AM, The Daring Dufas wrote:
>>>>>>>>>>> On 11/27/2013 10:29 PM, micky wrote:
>>>>>>>>>>>> That *is* a coincidence.
>>>>>>>>>>>>
>>>>>>>>>>>> Today during non-fire testing, one of the three main rockets on
>>>>>>>>>>>> the
>>>>>>>>>>>> Titan booster tested bad.  During a lull in the rain, our crew of
>>>>>>>>>>>> sixteen technicians, unbolted the rocket and replaced it with a
>>>>>>>>>>>> spare.
>>>>>>>>>>>> It took 143 minutes and they finished just before the rain started
>>>>>>>>>>>> again.
>>>>>>>>>>>>
>>>>>>>>>>>> The new engine tested well in situ, and the Thanksgiving launch of
>>>>>>>>>>>> the
>>>>>>>>>>>> first Turkey in Space is scheduled to launch Thursday at 10AM
>>>>>>>>>>>> EST as
>>>>>>>>>>>> planned.    If I may quote you, "Now it works again".
>>>>>>>>>>>>
>>>>>>>>>>>> Mickey,
>>>>>>>>>>>>
>>>>>>>>>>>> Chief Engineer, NASA John F. Kennedy Manned Spacecraft Center,
>>>>>>>>>>>> Cape
>>>>>>>>>>>> Canaveral, Florida.
>>>>>>>>>>>>
>>>>>>>>>>>> "America, First in Space"
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> I thought we were using leftover Russian moon rocket engines? ^_^
>>>>>>>>>>>
>>>>>>>>>>> TDD
>>>>>>>>>>
>>>>>>>>>> Didn't I hear they are made in China, and imported by
>>>>>>>>>> Walmart. Clinton sold them the technology, during his
>>>>>>>>>> campaign.
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Nope, NASA actually used some Russian rocket motors. ^_^
>>>>>>>>>
>>>>>>>>> https://www.youtube.com/watch?v=MZnYr94aa9E
>>>>>>>>
>>>>>>>> Because the US government is incapable of doing anything, anymore.
>>>>>> Hmmm,
>>>>>> Not using metric system is another possible reason getting beaten by
>>>>>> Russians at the start line.
>>>>>
>>>>> All my measuring instruments are marked with metric units but my brain
>>>>> hasn't been totally converted into metric. ^_^
>>>>>
>>>>> TDD
>>>>>
>>>>>
>>>>>
>>>> Hi,
>>>> I grew up with Metric system. And I had to learn imperial system quick.
>>>> Only problem with Imperial system is poor accuracy. My BIL was air force
>>>> Kiwi constructing air base, designing pipe lines, oil storage tanks,etc.
>>>> Here we live in oil country, pipe lines criss cross
>>>> every where. He mentioned once difficulty in maintaining tight tolerance
>>>> with inch-pound units vs. metric.  How do we do logarithm,
>>>> measuring decibel, how do we do all the high level math. in in.-lb.
>>>> After converting to Metric I guess. I was a radio repairman for
>>>> field artillery unit in the service. We used Metric.  Kids here learn in
>>>> Metric. Hospitals use Metric. Speed road signs are all Metric, etc.
>>>
>>> The U.S. military went metric for most things many years ago. I remember
>>> the TV reports from Vietnam where soldiers were describing the distance
>>> of some event in meters.
>>
>> "klicks".  I could be wrong but believe the Navy still uses yards for
>> gunnery, though.  hey did fairly recently, anyway.
>>
>
>I watched a documentary about the modern British Navy where they were
>using yards for the ship's guns but the ground troupes were using
>meters. I'm going to guess that all the naval artillery tables and
>calculations would have to be redone to convert to metric. I remember
>that the older ships have mechanical computers to calculate trajectories
>and it would be quite a chore to refit those old ships. ^_^

Note that the Navy also uses nautical miles for surface distance (and
yards for torpedoes).  All of the conversions are trivial for the few
times they're necessary.  Certainly easier than the entire service
changing.  The same is true for domestic use of FPS.  With calculators
and computers, it's even more true.