[HN Gopher] Metric Paper [video]
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       Metric Paper [video]
        
       Author : mmastrac
       Score  : 36 points
       Date   : 2023-02-02 15:40 UTC (1 days ago)
        
 (HTM) web link (www.youtube.com)
 (TXT) w3m dump (www.youtube.com)
        
       | _Microft wrote:
       | The video that this one is alluding to (or paying tribute to?) is
       | called "Powers of Ten" from 1977. If that does not sound
       | familiar, I recommend you watch it as well. It's a gem.
       | 
       | https://www.youtube.com/watch?v=0fKBhvDjuy0
        
         | thangalin wrote:
         | https://www.youtube.com/watch?v=KEHCCsFFIuY
         | 
         | Star Size Comparison 3 (Vortex) is incredible.
        
       | cxr wrote:
       | * * *
        
       | smusamashah wrote:
       | It's the ratio which is important here. The type of unit (metric
       | or not) doesn't really matter.
        
         | Symbiote wrote:
         | "The paper dimension standard used in essentially all countries
         | using the metric system, specified in the metric system, and
         | with constants chosen to fit nicely with that system" is a bit
         | long.
         | 
         | An A0 sheet has an area of 1m2.
         | 
         | For the ratio in general, see
         | https://en.wikipedia.org/wiki/Square_root_of_2
        
           | rdlw wrote:
           | ISO paper
        
         | mikewarot wrote:
         | That invites a formulae for the sides
         | 
         | A(n) paper is 2^((1/2-n)/2) * 2^((-1/2-n)/2) meters, with an
         | area of 2^-n meters^2
         | 
         | A0 is thus 2^(1/4) meters x 2^(-1/4) meters
        
       | nabla9 wrote:
       | The standard was proposed by mathematician Lazare Carnot.
       | 
       | In addition to A series, there is also B series (and C series).
       | They all have the same aspect ratio [?]2
       | 
       | B0 is 1 metre wide, while A0 is 1 meter long. The area of B
       | series sheets is the geometric mean of successive A series
       | sheets. Many books are printed in size B5. When you fold A4 it
       | fits neatly between the pages.
       | 
       | Letter written on A4 paper fits inside a C4 envelope, and both A4
       | paper and C4 envelope fit inside a B4 envelope.
        
       | jml7c5 wrote:
       | It's silly, but I wish the HD aspect ratio had been the golden
       | ratio. There's something very satisfying about it, even if its
       | properties would be of little practical use. (Though I wouldn't
       | have minded the extra vertical space!)
        
         | delta_p_delta_x wrote:
         | It used to be _almost_ the golden ratio. 16:10 monitors and
         | notebook panels were very common around 2008 - 2011 or so,
         | until 16:9 took over after televisions and  'HDTV' made it
         | popular.
         | 
         | MacBooks have _always_ been 16:10. And recently, 16:10 appears
         | to be making a resurgence once again--many notebook models that
         | were 16:9 1080p have moved to WQXGA 2560 x 1600.
        
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       (page generated 2023-02-03 23:01 UTC)