Recent content by joeyb9

Of the 61 known elementary or fundamental particles, which ones exist in the everyday, "natural" world of the Earth, and which have been created or only found among laboratory experiments? The 61: red/blue/green up/down/strange/charm/top/bottom quarks and their antiparticles make 36...

Why is there seemingly so little interest among particle physicists about discovering the graviton? Is it because it is believed to be too difficult, even hopeless, to find, or some other reason?