BBCNEWS BBC News at One June 4, 2024 12:29:00
Well in here, there's a machine that's going to wipe the words off the page. this is barack, who's behind the project? barack, we've got some printed paper here. can you wipe those words off the page, please? absolutely, roger. it's done with a powerful laser and a special paper coating that stops ink soaking into the page. each sheet can be reused up to ten times. and look at the transformation. that is absolutely amazing. barack, what have you done with the words? well, we've basically evaporated the ink. and what's left is just pigments of the ink which we collect. and those can be recycled...
Source: archive.org