What kind of forces hold the protons and neutrons together in the nucleus?
Asked by: Madhur
It seems that since all protons are positive, they would repel each other, and the
nucleus would fly apart. Fortunately, there is a force that holds it together.
Any force that you can think of goes into four different categories. They are,
gravity, electromagnetism, the strong nuclear force, and the weak nuclear force.
Gravity holds galaxies together, electromagnetism is the force that would
theoretically rip a nucleus apart, the weak nuclear force governs radioactivity,
and the strong nuclear force (130 times stronger than electromagnetism) is the
force that holds a nucleus together.
Answered by: Mitchell Wang, 8th Grade Student, West Chester, OH
'The strength and weakness of physicists is that we believe in what we can measure. And if we can't measure it, then we say it probably doesn't exist. And that closes us off to an enormous amount of phenomena that we may not be able to measure because they only happened once. For example, the Big Bang. ... That's one reason why they scoffed at higher dimensions for so many years. Now we realize that there's no alternative... '