Some concern was expressed that the high-energy particles produced by the Large Hadron Collider might generate small black holes that could grow out of control and eventually consume all of Earth’s...

Some concern was expressed that the high-energy particles produced by the Large Hadron Collider might generate small black holes that could grow out of control and eventually consume all of Earth’s mass. Why is this not a likely scenario?

Explain why Hubble’s parameter, with its value today called Hubble’s constant, is not actually a constant.

According to thermodynamic equilibrium, which should be the most abundant and least abundant quarks during the period from 10=¹³
s to 10=³
s?