| Bob and D'gib are here to demonstrate how the postulates of special relativity affect the order in which observers view events to happen. An expanding light sphere will be centered on each observer and begin expanding when the observers are at the same location. Both observers agree on the speed of light, regardless their perceived state of motion. As a result, their perception as to the order of events will be different. (You must have your sound turned on) | |
| How do the detectors work? | |
| Bob | D'gib |
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| Bob considers himself to be at rest and D'gib to be moving | D'gib considers himself to be at rest and Bob to be moving. |
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