Which line best supports the writer’s opinion that Kamen has done things that have never been done before?

This quote is from the inventor of a three-phase motor, Nikola Tesla.
Dean started tinkering with sound and light boxes in his bedroom, “which caused lights to go off and on, and deafening sound to come from his radio,” said his mother.
It fits the description in every respect of Dean Kamen, the owner of more than one hundred patents.
Their indulgent parents allowed Dean and his older brother Barton to experiment, raising as many as one hundred live rats and to set up a workshop in their basement on Long Island.