Answer: The one that finally worked was the incandescent light bulb .
Explanation: Edison had built his first high resistance, incandescent electric light. It worked by passing electricity through a thin platinum filament in the glass vacuum bulb, which delayed the filament from melting.
In addition to separating powers among the branches, the Framers gave each branch the power to check, or stop, the actions of the other two branches in meaningful ways. For example, the president has the power to veto, or reject, laws made by Congress.
The kind of wood used in the 200-pound yoke that holds the 2080 pound bell that is at 520 Chestnut Street in Philadelphia is a n American elm. It also known as Ulmus Americana. This is the largest and most widespread elm in the United States. Hope this answers the question.
one reason is because they were a lost civilization for many years and a second reason they have mountains around them so it was very to get there.
