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Posted by Rik Wasmus on 12/05/07 14:40
On Wed, 05 Dec 2007 14:38:32 +0100, Marc Christiansen
<usenet@solar-empire.de> wrote:
> Jerry Stuckle <jstucklex@attglobal.net> wrote:
>> Marc Christiansen wrote:
>>> Jerry Stuckle <jstucklex@attglobal.net> wrote:
>>>> Marc Christiansen wrote:
>>>>> Jerry Stuckle <jstucklex@attglobal.net> wrote:
>>>>>> Toby A Inkster wrote:
>>>>>>>
>>>>>>> ____
>>>>>>> 1. It is noteworthy that the UK's motorway speed limit (70
>>>>>>> miles/hour) is almost exactly 4 millilightyears per fortnight
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>>>>> (it's about 4.0009353).
> [...]
>>>> But you're wrong - you need to divide 5.87849981×10^12 by 365 to get
>>>> the
>>>> number of miles in a light day, then multiply by 14 days.
>>>
>>> Only if you want the length of a light fortnight in miles. Which is not
>>> the same as lightyear / fortnight. Light fortnight is a length,
>>> lightyear / fortnight is a velocity.
>>>
>>>> I have no idea where you got 5.87849981×10^12 / (14 * 24). But one
>>>> light hour is 670,616,629 miles or so.
>>>
>>> 14 * 24 is the number of hours in a fortnight, so dividing the length
>>> of
>>> one lightyear in miles by this number gives me one lightyear /
>>> fortnight
>>> in miles / hour.
>>
>> OK, but he wasn't looking at one lightyear per fortnight (which violates
>> most current laws of physics). He was looking at a light fortnight -
>> the distance light travels in a fortnight.
>
> Huh? Diving a length by a time span violates laws of physics, just
> because the length is expressed in lightyears or the time span in
> fortnights?
Euhm, 200km / 1,5 hours = 133km/h, it's called speed, and the only law it
broke was the speedlimit...
> And he was talking about "millilightyears per fortnight" and
> the speed limit on UK's motorways, so he definitely did not mean a
> distance.
He did indeed mention a speed.
Once and for all:
70 miles / hour
23520 miles / fortnight (be very aware of DST...)
4.0010208 × 10-9 lightyear / fortnight
4.0010208 nanolightyear / fortnight
We could ofcourse just have fuckin' googled it:
<http://www.google.com/search?q=70miles+per+hour+in+lightyear+per+fortnight>
--
Rik Wasmus
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