Latest Johanna Bergstrom-Roos Stories
The British Skylark rocket engine saw its final launch Monday in northernmost Sweden after rocketing into space more than 400 times over five decades.
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'.