purity | |||
100% | TOP QUARK | Truly Obese Particle! Qrious? Use A Recent Kit. |
Angela Brett, who apologises for the Qrious cheat, but it's better than yet another 'Quite'. ('Top' is the heaviest of the six types of QUARK... along with UP QUARK, DOWN QUARK, STRANGE QUARK,CHARM QUARK and BOTTOM QUARK. Because of the immense amount of energy needed to create a top quark, it was not possible until recently.) Science:Physics:Particles |