Labels:bulletin board | daily | encyclical | fence | poster | sky | skyscraper OCR: source independent of "the speet the light will After one millionth ofa ere with have spread out to form millionths of radius of300 meters: aft meters: and second, the radius will that spread so on. will be like the hen a stone out on the surface ofa pC out as a circle throwm in. The ripples on. If one that gets bigger as time model thinks of a three- dimensi onal surface of consisting of the two- dim of time the the pond and the one din mark out expanding circle ofripple and time at cone whose tip is at the (Fig 2.3. which the stone hit the out from an Similarly the light sprea nal cone the event forms three- dime This cone four dimensional space. the event called the future light CO spee eters face thrown dimens rippl evew evewt
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