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What is a solid made of up ? Like the smallest bits of the solid ? Like wood, or plastics ?
You know what they are, they are chains called _________________
Well what are these _______________ made up of ??? __________
Aristotle said these _______ were indivisible, even if he never saw them his very early ideas were almost correct. We now know that the atom is divisible, into 3 separate parts,
the
- ________________________
- ________________________
- ________________________
this is what you would have learned in the Junior Cert Science Course, and you probably were told that these were the smallest individual particles that made up the entire universe.
They aren't!
The age of what is called "modern physics" started about 100 years ago, when scientists such as Thomson, Bohr, and Rutherford discovered that the atom was not a solid, tiny and indivisible particle, as had been envisaged by Dalton.
The new idea in Particle physics is that these particles are only combinations of the most fundamental particles. This sub-nucleonic set of particles, is presently being researched, as physicists uncover the mysteries of the very small year after year.
This all stems from the section on Nuclear
but the story we tell here is only the basics, but they are up to date,
A really fantastic page that explains the section very well
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