31–40 of 68 posts
It has a lot of air gaps within its fibers. We know that Solids CANNOT be compressed. So what's actually being folded is the air gaps. Which is why you can't easily fold a piece of tungsten. It has less air gaps.
But you can fold aluminum foil just fine? That certainly doesn't have "a lot of air gaps within its fiber"
This is exactly the sort of hard-hitting journalism that makes me proud to pay my TV licence.
For me this kind of simple, straightforward, educational content is part of the reason I’m proud to pay my TV licence.
Oh no! woe is me, they don't highlight my absolutely, ridiculously favourite fact/curiosity about a sheet of smooth paper: If you fold it clean, the crease is a straight line. In fact I don't know of any other good way of obtaining a straight edge from scratch quickly, meaning without transporting one existing straight edge to another (*). I remember spending a lot of enamored time coming up with different geometrica…
Oh no! woe is me, they don't highlight my absolutely, ridiculously favourite fact/curiosity about a sheet of smooth paper: If you fold it clean, the crease is a straight line. In fact I don't know of any other good way of obtaining a straight edge from scratch quickly, meaning without transporting one existing straight edge to another (*). I remember spending a lot of enamored time coming up with different geometrica…
Paper is thin so the stretching needed to bend it is minimal
This is exactly the sort of hard-hitting journalism that makes me proud to pay my TV licence.
This is exactly the sort of hard-hitting journalism that makes me proud to pay my TV licence.
It’s always hard to tell whether a comment like this is supportive or sarcastic so this is either me agreeing or disagreeing with you… For me this kind of simple, straightforward, educational content is part of the reason I’m proud to pay my TV licence.
Earlier quoted context omitted.
If you want to use a rope to get a straight line, your best bet is to turn the rope itself into the pencil. Coat it in chalk or other powder, then put it under tension and snap it on to the desired surface
This is actually a tool used in construction. A chamber filled with chalk and a coiled line. You hook the line to one end of your item, pull the chamber across, make it tight, snap the line. https://www.homedepot.com/p/Milwaukee-100-ft-Bold-Line-Chalk...
Earlier quoted context omitted.
> In fact I don't know of any other good way of obtaining a straight edge from scratch quickly A string made taut between two points is surely a better way? And works at much bigger sizes too (people build walls and foundations using this technique all the time). The paper is less useful in practice because any paper you find is probably straight and square anyway. Still, I had fun thinking about this as I definitely…
Over long distances the string will sag in the middle. That's one of the reasons (not the only reason) construction uses lasers today.