3 · en
Short, simple sentences with “observer”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
Einstein's theory of relativity proposes that space and time are relative and depend on the observer.
Every observer brings a unique perspective to their science, and I am no exception.
To the casual observer, it is a magnificent aerial spectacle. But to scientists like Heppner, a zoologist at the University of Rhode Island, the gyrations of birds in flight are ephemeral pieces of an enormous puzzle.
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