'Some quarks are classified u, d & s: "up", this & "strange"'
down
TOUGH NUCLEAR PHYSICS: Some quarks are classified u, d & s: up, this & strange
Some quarks are classified u, d & s: "up", this & "strange"
Some quarks are classified u, d & s: "up", this & "strange"
TOUGH NUCLEAR PHYSICS
down
TOUGH NUCLEAR PHYSICS