Washington has a habit of confusing activity with progress, and nowhere is that clearer than in the ongoing debate over ...

Quantum entanglement has shifted from a philosophical puzzle to a design brief for engineers working at the scale of atoms, ...

Weighing a single living cell sounds like a party trick, yet the numbers involved are so small that they push the limits of ...

An animated guide in which fractions multiply to make baby fractions and a rather violent fraction divides numbers with a chainsaw. Use to illustrate the processes of multiplying fractions, and ...

Through this approach, CLEO can invest a portion of its assets in values-aligned impact funds advancing clean energy, ...

Rationalising an expression means getting rid of any surds from the bottom (denominator) of fractions. Usually when you are asked to simplify an expression it means you should also rationalise it.