How did Barry Allen get his powers in the comics?
Barry Allen – Barry Allen is a police scientist. He got his powers when a lightning bolt hit his lab and splashed a number of chemicals on him. Becoming Flash was ironic as Barry was slow, methodical, and often late prior to gaining his powers.
How did the flash get his powers in Justice League?
In DC Comics, Bartholomew Henry Allen was a forensic scientist who was struck by a lightning bolt and fell into a coma. When he awoke, he could think and move at incredible speeds. After deciding to use his powers to become a hero, he created a red suit and became The Flash.
How did the flash become fast?
The original Flash, Jay Garrick, was a college student who gained his speed through the inhalation of hard water vapors. The second Flash, Barry Allen, was a police scientist who gained super-speed when bathed by chemicals after a shelf of them was struck by lightning.