This week’s puzzle:

A person concerned with time and a person concerned with mass become engaged in a problem of creation. They worry when a model parallel to theirs begins to collapse, but in the end, despite expectations, their experiment is a success.

Last week’s puzzle:

Two disfigured men try to make the world understand the full meaning of their injuries. A lawless man knocks both of them out of buildings.

And the answer is . . . ▼