Mars Science Laboratory Curiosity News Archive - December 28, 2012
NASA has been using social media platforms to reach and excite the public all year, and now they have added a new social media partner: Foursquare.
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'.