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Because the slides are made from foil? Or at least they look like the are?
by frant-hartm 7y ago
Because the slides are made from foil? Or at least they look like the are?
- IanCal 7y agoPerhaps it's a language thing, to me "foil" without a qualifier means exclusively aluminium foil. I'd never have called ohp acetate "foil".
- CharlesW 7y agoI know them as "transparencies", but according to this "foils" was also common: https://en.wikipedia.org/wiki/Transparency_(projection) https://en.wikipedia.org/wiki/Transparency_(projection)
- chrisseaton 7y agoMade from foil? As in metal foil? But metal isn’t transparent.