Each key of the keyboard represents one tone, and each of the seven different white keys bears one of seven letter names.

Especially popular in the Palace of Machines were the inventions of

a. Alexander Graham Bell. b. Thomas Edison. c. Karl Benz. d. Nikola Tesla.

Describe Ai Weiwei’s Circle of Animals/Zodiac Heads and explain why it was created.

What will be an ideal response?