Always amazed at the order of magnitude jumps in that chart. Why are mammograms 20x stronger than chest x-rays? Who would guess how much safer the nuclear energ

Always amazed at the order of magnitude jumps in that chart. Why are mammograms 20x stronger than chest x-rays? Who would guess how much safer the nuclear energy stuff is than so many common activities? And brick/stone house doses are kind of astounding. Even after examining that chart every few years, my intuition still isn't tuned to reality.