2. Hundreds of particles known, in the spirit of Mendeleev, they can be grouped according to a few fundamental constituents.

4. “Feynman diagram” The uncertainty principle allows “virtual particles” to exist for a very brief amount of time.

5. The “forces” are particles themselves!

6. Weak interactions Strong interactions Gravity??

7. Why do we need huge accelerators?

8. You need a huge amount of energy to make a virtual particle (such as a force carrier) real so that you can study its properties and interactions

9. Remember you need a wavelength on the order of the size of an object to image it Higher energy=higher frequency= shorter wavelength

10. We are recreating the conditions that existed in the early universe