Week 7- Hypothesis/Avogaro's number

Seems hard in science because scientists are so skeptical that once a theory was/is established and well-known, for someone to come in and give a different hypothesis was often not accepted for awhile. Avogadro is a big example of this. Dalton rejected his hypothesis because they thought only unlike atoms could be held together. Although Avogadro proved this to be false, he died in 1854 without anyone of the time knowing his name...