Page 62 of the National Geographic book, “The New Solar System: Ice Worlds, Moons and Planets Redefined” includes a rather funny example of why books need a good production team.
In discussing the proton-proton chain reaction in the Sun:
Under normal circumstances, two positively charged protons would repeal each other. But in the intensely heated conditions of the solar core, a few are slammed together at high speeds. Once they are within 10 to 15 meters (33 to 49 ft) of one another, they are pulled together by the “strong force”, one of the fundamental forces of the universe.
The distance should be 10-15.
Notwithstanding a few small issues like this, it is a great book with lots of brilliant pictures and clear and detailed text.