what lies behind the smooth buttons on a mobile phone or cushioned soles of sneakers What's involved in extracting & processing materials?
#iAmBecauseWeAre #socialSelf
The Toaster Project: Heroic Attempt to Build a Simple Electric Appliance from Scratch
https://bookshop.org/books/the-toaster-project-or-a-heroic-attempt-to-build-a-simple-electric-appliance-from-scratch/9781568989976