Punisher why do you think your car heats up in the sun especially if it's black? Why do you think plants can make carbohydrate by photosynthesis only when the sun is shining and they close their stomata and stop photosynthesis at night? If you throw a bullet at a door it won't pass through because you can't put enough energy into it but shoot it out of a gun and it'll go through -

Higher energy = more penetration - surely being on a boxing forum you know that!