4 ms·
It's really striking if you have a projector. Before you turn on a projector in a room that isn't dark, a white wall looks pretty white. Once the projector is o
by petercooper 3y ago
It's really striking if you have a projector. Before you turn on a projector in a room that isn't dark, a white wall looks pretty white. Once the projector is on, that "pretty white" wall is now playing the role of black in the projected scene.
- greenimpala 3y agoThat's almost so obvious that I never thought of that :D
- grishka 3y agoAnd the color brown doesn't exist on its own. It's orange with context.
- DropInIn 3y ago[flagged]