Our performance brake rotors for Ford Ranger are precisely machined and balanced to guarantee minimal vibration and warping. They're designed to effectively vent hot gases away from your rotors, reducing the presence of brake pad deposits.
So it seems safe to estimate that the age of the Universe is at least 15 billion years old, but probably not more than 20 billion years old. This matter is far from being settled by astrophysicists and cosmologists, so stay tuned. There could be radical new developments in the future.
Somebody say that as the universe is just about 13.7 billion years old from the big bang to now, so if we measure the mass of photon through any quantum effects, we will ultimately arrive at a threshold under which we can not push on. In other words, we have no method to measure the absolute zero mass of photon.