Answer:
Marie Curie discovered radium even she is a women.
Answer:
<em>Well, Most wizards are unfamiliar with this piece of technology, with Ron Weasley calling it a "fellytone," and believing he had to shout into the receiver to be heard. Consequently, the wizarding world prefers to use owls and the Floo Network for communication. </em><em>Good Luck!</em>
