“That old sorcerer has vanished
And for once has gone away!
Spirits called by him, now banished,
My commands shall soon obey.
Every step and saying
That he used, I know,
And with sprites obeying
My arts I will show.”
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Small blobs of human brain grown in a dish have been coaxed into forming rudimentary eyes, which respond to light by sending signals to the rest of the brain tissue [read more: buff.ly/3jZLhEl]
