Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: June 3, 2025
As a mechanism, this American telephone system is the product not of one but of many minds. What most strikes the imagination is the story of Alexander Graham Bell, yet other names Carty, Scribner, Pupin play a large part in the story. The man who discovered that an electric current had the power of transmitting sound over a copper wire knew very little about electricity.
In making this picture, Professor Pupin excited his tube by means of a powerful Holtz machine, thus following Dr. Morton in the substitution of statical electricity for the more common induction coil. Professor Pupin sees no reason why the whole skeleton of the human body should not be shown completely in a photograph as soon as sufficiently powerful bulbs can be obtained.
"I may as well go across to Camus..." Francoise would hazard, seeing that my aunt had no longer any intention of sending her there. "No, no; it's not worth while now; it's certain to be the Pupin girl. My poor Francoise, I am sorry to have made you come upstairs for nothing."
Word Of The Day
Others Looking