Simplify the following text for a Grade 8 native English-speaking person.
Original: One tesla is equal to one weber per square meter , and it was defined in 1960 in honor of the inventor , physicist , and electrical engineer Nikola Tesla .
Simplified: Tesla is measured in different ways , like weber per square meter etc. . It was called like this in 1960 , in honor of the physicist , electrical engineer Nikola Tesla .