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In particle physics, weak isospin is a quantum number relating to the weak interaction, and parallels the idea of isospin under the strong interaction.

Topoisomerases reduce supercoiling of DNA in the cell.

In quantum mechanics, spin is an intrinsic property of all elementary particles.

Weak isospin is a complement of the weak hypercharge, which unifies weak interactions with electromagnetic interactions.

This is a merry go round invented by the company Roundabout, which pumps water as kids play. You know?

The weak isospin conservation law relates the conservation of T 3 all weak interactions must preserve T 3.

The dynamics of spin ½ objects cannot be accurately described using classical physics they are among the simplest systems which require quantum mechanics to describe them.