  The electron and the proton have a negative electrostatic charge and a positive electrostatic charge respectively. Each charge-and the force associated with that unit of charge-is constant-and equal.(The electron and proton have equal, but oppositely polarized, electrostatic charges.) But there is more. The electron and the proton have a negative electrostatic charge and a positive electrostatic charge respectively. Each charge-and the force associated with that unit of charge-is constant-and equal.
The start of life for the tank did not bode well. The first model came off the factory floor on September 8th 1915. On September 10th, its track came off. The same happened on September 19th when government officials were watching.
Tank Man, or the Unknown Rebel, is the nickname of an anonymous man who became internationally famous when he was videotaped and photographed during the Tiananmen Square protests on 5 June 1989. Several photographs were taken of the man, who stood in front of a column of Chinese Type 59 tanks, preventing their advance.