Doctors used to believe it was OK for a person with PKU to stop the diet in adolescence, but today, doctors recommend sticking to the diet and PKU formula for life.

CNN: Phenylketonuria (PKU)

The new regulations have doubled the life span of a Formula One engine in an attempt to cut costs and reduce speeds, forcing teams to use the same ones for two successive races.

BBC: SPORT | Motorsport | Formula One | Ferrari to unleash new car in May

As ever, what kept a woman pure was the drudge's life, of which Juvenal supplied the traditional formula: "Hard work, short sleep, hands chafed and hardened" from housework.

WSJ: Still Under Cleopatra's Spell

David can beat Goliath by substituting effort for ability and substituting effort for ability turns out to be a winning formula for underdogs in all walks of life, including little blond-haired girls on the basketball court.

NEWYORKER: How David Beats Goliath

With the Ice Cream Sandwich OS upgrade, Samsung offered innovative new features such as Shape Match and Formula Match, providing a new way for organizing and expressing ideas in their personal and professional life.

ENGADGET: Samsung Galaxy Note II unveiled: 5.5-inch HD Super AMOLED display, Android Jelly Bean and more S Pen functionality