Photography is your answer
Mixtures of pigment and clay --slip— they created (check the passage you read or wtv it should be sum like this) and for the derive question
A musician actually I believe a composer
Answer:
Yes of course. We already have devices that can read facial expressions and respond to them. At some point technology will evolve to the point that it will understand hand signs as well. It can be used to support a conversation with someone who is hard of hearing, or teach people how to sign in ASL without an actual teacher.
Explanation:
