Conversation during dinner today:
Albert: Son, you need to clean your glasses.
Daniel: I guess they must be pretty bad. Someone at school made a comment about them.
Angela: Said what?
Daniel: That my glasses were so dirty.
Albert: You should have said, I am conducting a highly sensitive experiment on the diffraction of light.
Albert: I am developing a layer of photovoltaic biological substances that can’t be disturbed.
Albert: In three months I expect to see photosynthesis.
Megan: I have no idea what you’re talking about.