@sysop408 @kwayk42

tl;dr The manufacturing process for making layers of things in rolls was already well-established for other things. Now even more so, so there's not any real incentive to retool for something else.

@sysop408 @kwayk42

Apparently this: https://onlinelibrary.wiley.com/doi/10.1002/9781119163824.ch1

(Says a PBS article I found.)

@sysop408 @kwayk42

Huh. So 9V batteries are _actually_ batteries!

@ada @sundogplanets @rdm

This heli-shark has serrated blades!

@Daveosaurus @rdm @sundogplanets

I am glad I'm not the only one who thought that!