Grammar Nazi...
carried about 20 to 30 times more energy than what was released by the first atomic bombs.
carried about 20 to 30 times more energy than that which was released by the first atomic bombs.
TFTFY...
carried about 20 to 30 times more energy than what was released by the first atomic bombs.
carried about 20 to 30 times more energy than that which was released by the first atomic bombs.
TFTFY...