PLEASE HELP ASAP Which detail shows that Kamen was serious and passionate about his inventions?

Bart left for college and Dean stopped doing photography.
It was the early days of disco and light shows were the rage.
He used the money he made to buy more and more equipment.
Everyone wanted to buy a light box to connect to their stereo.

Jane addams's memoir, twenty years at hull-house, describes her work with

What is implied in this sentence from mark twain's "the £1,000,000 bank-note"? i was puzzled, and wanted to discuss the matter a little further, but they didn't; so i took my leave, feeling hurt and insulted to be made the butt of what was apparently some kind of a practical joke, and yet obliged to put up with it, not being in circumstances to resent affronts from rich and strong folk.

What is the main idea of “young lions, young ladies”?