Incoming Resources
- A brief history of timekeeping, the science of marking time, from Stonehenge to atomic clocks, Chad Orzel
- Book Review, a summary of humanity's study of the universe
- The dance of time, the origins of the calendar : a miscellany of history and myth, religion and astronomy, festivals and feast days, Michael Judge
- A brief history of timekeeping, the science of marking time, from Stonehenge to atomic clocks, Chad Orzel