Latest Alexander Pavlov Stories
According to a new study to be published Geophysical Research Letters, NASA's new Curiosity rover may be capable of digging deep enough to find evidence of ancient life on Mars.
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'.