Latest Nova Bio Stories

2010-02-18 08:05:00

A cheap and simple way of making vaccines stable – even at tropical temperatures – has been proven to work by scientists at Oxford University.

Word of the Day
  • A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.
The word 'pawl' probably comes from a Latin word meaning 'stake'.