Source: Pixabay/No attribution required. Many of us have heard of this scenario: a car accident happens in a busy intersection surrounded by pedestrians. Depending on the corner where each pedestrian ...
The Pioneer 10 and 11 deep-space probes carry a plaque for the benefit of any aliens they might run into. On it is a line drawing of a man and a woman. Will it make any sense to its intended audience?
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback