Klaymore@sh.itjust.works to linuxmemes@lemmy.worldEnglish · 2 years agoI bet the rest of the world has better papersh.itjust.worksimagemessage-square51fedilinkarrow-up1840arrow-down135
arrow-up1805arrow-down1imageI bet the rest of the world has better papersh.itjust.worksKlaymore@sh.itjust.works to linuxmemes@lemmy.worldEnglish · 2 years agomessage-square51fedilink
minus-squareMubelotix@jlai.lucakelinkfedilinkarrow-up120arrow-down2·2 years agoWell yes, the rest of the world does have better paper. 21×29.7, the only ratio to conserve itself when halving the sheet
minus-squareTangent5280@lemmy.worldlinkfedilinkarrow-up14·2 years agoWait, is that true? Is there something special about that ratio in particular that lets it conserve ratio when dividing?
minus-squarethe_seven_sins@feddit.delinkfedilinkEnglisharrow-up6·2 years agoThere also is B0, which is exactly 1 by the root of 2 meters.
minus-squarecygnus@lemmy.calinkfedilinkarrow-up35·2 years agoYes it’s true. It’s the square root of 2, which is why it works.
minus-squareMubelotix@jlai.lucakelinkfedilinkarrow-up5·edit-22 years agoLegend has it that Leonardo da Vinci came up with it
minus-squareKISSmyOS@lemmy.worldlinkfedilinkarrow-up1·2 years agoLegend has it he came up with catgirl memes, too.
minus-squareUndercoverUlrikHD@programming.devlinkfedilinkarrow-up8·edit-22 years agoHere you go, proof at ~2 min in. Edit: for those who don’t want to use YouTube anymore. If a is the long side and b is the short side of a rectangle. Halving the rectangle will make the long side b and the short side 1/2 a. If the ratio is preserved when halving, we get: a/b=b/(1/2 a) a2*=2*b2 a2*/*b2=2 a/b=sqrt(2)
minus-squarejoshfaulkner@lemmy.worldlinkfedilinkarrow-up8·2 years agoHere’s a fun CGP Grey video on the matter: https://youtu.be/pUF5esTscZI?si=9czdx4u8jWruZoui
minus-squareyukijoou@lemmy.blahaj.zonelinkfedilinkarrow-up9·2 years agountrackered link: https://youtu.be/pUF5esTscZI
minus-squareBastingChemina@slrpnk.netlinkfedilinkarrow-up7·2 years agoYes, this particular ratio allows the fact that you can fold a A3 paper in two and get two A4 sheet
minus-squareSmokeyDope@lemmy.worldlinkfedilinkEnglisharrow-up5·2 years agoBesides the Grey video heres an oldie but goodie Numberphile video about it
minus-squareLifter@discuss.tchncs.delinkfedilinkarrow-up3·edit-22 years agoIt’s called the Golden Ratio and has a lot of neat properties! Da Vinci and other nerds love(d) using it in art.
minus-squareZerush@lemmy.mllinkfedilinkarrow-up3·edit-22 years agoRelation 1 to SQR 2, from A0 of 1m2 to A5 letter format (A4, A5 most used in the EU), every time the half of the next bigger format. Easy to remember. https://www.papersizes.org/a-paper-sizes.htm
minus-squareuis@lemmy.worldlinkfedilinkarrow-up3·edit-22 years agoI didn’t know there are part of the world which doesn’t put A4 in their printers
Well yes, the rest of the world does have better paper. 21×29.7, the only ratio to conserve itself when halving the sheet
Wait, is that true? Is there something special about that ratio in particular that lets it conserve ratio when dividing?
And IIRC, A0 is 1m²
There also is B0, which is exactly 1 by the root of 2 meters.
Beautiful.
Yes it’s true. It’s the square root of 2, which is why it works.
Legend has it that Leonardo da Vinci came up with it
Legend has it he came up with catgirl memes, too.
Here you go, proof at ~2 min in.
Edit: for those who don’t want to use YouTube anymore. If a is the long side and b is the short side of a rectangle. Halving the rectangle will make the long side b and the short side 1/2 a. If the ratio is preserved when halving, we get:
a/b=b/(1/2 a)
a2*=2*b2
a2*/*b2=2
a/b=sqrt(2)
Removed by mod
Here’s a fun CGP Grey video on the matter: https://youtu.be/pUF5esTscZI?si=9czdx4u8jWruZoui
untrackered link: https://youtu.be/pUF5esTscZI
Removed by mod
Removed by mod
Yes, this particular ratio allows the fact that you can fold a A3 paper in two and get two A4 sheet
Besides the Grey video heres an oldie but goodie Numberphile video about it
Removed by mod
It’s called the Golden Ratio and has a lot of neat properties! Da Vinci and other nerds love(d) using it in art.
Relation 1 to SQR 2, from A0 of 1m2 to A5 letter format (A4, A5 most used in the EU), every time the half of the next bigger format. Easy to remember.
https://www.papersizes.org/a-paper-sizes.htm
I didn’t know there are part of the world which doesn’t put A4 in their printers