| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1355.1 | | GUESS::DERAMO | Sometimes they leave skid marks. | Wed Dec 12 1990 19:32 | 22 |
| >> Let A,B,C & D be the corners of such a sheet, in clockwise order,
>>where AB & DC are the long sides. Fold the sheet so that D lies on AB.
There is more than one way to do that.
>>The crease runs from A to E say, where E is a point on CD.
Okay. You mean to fold it so that all of AD is along AB.
>> Now fold the
>>sheet a second time, so that E now lies on AB.
Again, there is more than one way to do that.
>> *Where* on AB does E lie, and why?
Folding so that all of AE lies along AB, point E ended
beyond B rather than between A and B. Folding along the
line bisecting CB results (of course) in E ending up on
top of D (where the folded D sits on AB).
Dan
|
| 1355.2 | crazed of Valbonne | HERON::BUCHANAN | combinatorial bomb squad | Wed Dec 12 1990 20:27 | 6 |
| Yeah, I'm working all night due to DECPresent letting me down, and
this flaky idea came to mind. Dan's right, I'm folding AD onto AB, and
AE on to AB afterwards. The mind wanders.
Regards,
Andrew.
|
| 1355.3 | Let's go for a Golden Ratio standard! | IOSG::CARLIN | Dick Carlin IOSG, Reading, England | Thu Dec 13 1990 05:16 | 8 |
| If it's A4 paper then the answer is B. This follows from the SQRT(2)
ratio of length to width for An paper. (This means that an A3 folds in
half to give an A4, A4 -> A5 etc.)
Dan's paper probably isn't A4, which leads to the question of why US
paper has the ratio approx 1.3
Dick
|
| 1355.4 | | GUESS::DERAMO | Sometimes they leave skid marks. | Thu Dec 13 1990 08:45 | 5 |
| I think mine was 8 1/2 by 11 (both in inches). It did
occur to me afterwards to ask what the dimensions of an
A4 sheet of paper were. What are they?
Dan
|
| 1355.7 | page size
| CSSE::NEILSEN | I used to be PULSAR::WALLY | Thu Dec 13 1990 12:53 | 8 |
| Contrary to what .0 says, the availability of A4 paper depends a lot on your
geography. I usually have a bit in my (US) office, from paper mail from
Europeans. But I could not find any to measure.
The LN03 programmer's manual gives A4 size as 21 cm by 29.7, which is the
sqrt(2) ratio.
I don't know why US paper is 8� by 11.
|