The four fundamental forces of nature are, in order of strength: strong nuclear, electromagnetic, weak nuclear, and gravitational. Quarks interact via the strong force, but leptons do not. Both quark ...The four fundamental forces of nature are, in order of strength: strong nuclear, electromagnetic, weak nuclear, and gravitational. Quarks interact via the strong force, but leptons do not. Both quark and leptons interact via the electromagnetic, weak, and gravitational forces. Elementary particles are classified into fermions and boson. Fermions have half-integral spin and obey the exclusion principle. Bosons have integral spin and do not obey this principle.
You will know that the early Universe was extremely dense and that changes happened rapidly. You will know that the Planck time is the earliest era we can probe. You will know that at the Planck time ...You will know that the early Universe was extremely dense and that changes happened rapidly. You will know that the Planck time is the earliest era we can probe. You will know that at the Planck time all four forces are thought to be unified. You will know that all of space and time were created in the beginning.
