MIKKEL JUUL JENSEN / SCIENCE PHOTO LIBRARY MIKKEL JUUL JENSEN / SCIENCE PHOTO LIBRARY
Plastic from milk and vinegar. Apparatus used to produce plastic from hot milk (centre) and vinegar (right). Mixing vinegar with heated milk causes the milk to separate, leaving a precipitate of casein, which was used historically to make some of the earliest plastics.
Model release not required. Property release not required.