Simplify the following text for a Grade 4 native English-speaking person.
Original: This can be seen from NordstrÃ m 's public admiration of Einstein 's work , as demonstrated by the two occasions on which NordstrÃ m nominated Einstein for the Nobel prize in physics for his theory of relativity .
Simplified: NordstrÃ m is not well-known in his own home country , but what he has done is known well in other countries . Some Finnish authors call NordstrÃ m as Finnish Einstein .