XPost: alt.usage.english   
   From: phil@anonymous.invalid   
      
   On 22/09/2024 11:19, Snidely wrote:   
   > On Sunday, kami pointed out that ...   
   >> On Sun, 22 Sep 2024 01:52:33 -0700, Snidely wrote:   
   >>   
   >>> Remember when kami bragged outrageously?  That was Sunday:   
   >>>> On Thu, 19 Sep 2024 23:12:52 -0000 (UTC), Christian Weisgerber   
   >>>> wrote:   
   >>>>   
   >>>>> I'm sorry, I don't know where to post this.  I'm crossposting to   
   >>>>> alt.usage.english, because statute miles as a unit mostly afflict   
   >>>>> the English-speaking world.   
   >>>>>   
   >>>>> So you want to convert between miles and kilometers.  The conversion   
   >>>>> factor is... uh...  A 40-year-old calculator book provides a useful   
   >>>>> tip:  Unless you're designing a space probe, you can use ln(5).   
   >>>>>   
   >>>>> WHAT?   
   >>>>>   
   >>>>> Yes, the natural logrithm of 5 approximates the conversion factor   
   >>>>> between miles and kilometers; specifically one mile is about ln(5)   
   >>>>> kilometers.  It's accurate to four digits.   
   >>>>>   
   >>>>> If nothing else, it's faster to type on a calculator.   
   >>>>>   
   >>>>> I think that's hysterical.   
   >>>>   
   >>>>   
   >>>> simplest method is to multiply by 0.6   
   >>>   
   >>> There's no humor in that.   
   >>>   
   >>> -d   
   >>   
   >> an easier method would be, if the limit is 80 miles per hour,   
   >> simply add half, which is 40 and then one tenth of that, which is   
   >> 4 and multiply it by 2 which is 8, so 48 + 80 is 128 km/h   
   >>   
   >> similarly lets say 120 miles per hour, half 60, tenth times 2 is   
   >> 12, so 72 + 120 = 192 km/h.   
   >   
   > There's no humor in that.   
   >   
   > -d   
   >   
      
      
      
      
   --   
   Phil B   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)