4 ms·

Foil is a standard name for well transparent foil. https://en.m.wikipedia.org/wiki/Transparency_(projection) https://en.m.wikipedia.org/wiki/Transparency_(proj

Foil is a standard name for well transparent foil. https://en.m.wikipedia.org/wiki/Transparency_(projection) https://en.m.wikipedia.org/wiki/Transparency_(projection)

chrisseaton 7y ago
Lol that still doesn’t explain it - they’re called foils because their name is foils? That’s tautological!
- OJFord 7y ago
  It's from French feuille, for 'leaf', so it's used for all these thin film things that are leaf-thin.
  - staplers 7y ago
    Demanded an answer to his question and didn't even say thank you.