The famous time-ball that drops in Manhattan on New Year's Eve has its origins in the British Royal Observatory! - Wilton Historical Society
The Man Behind the Times Square Ball - The New York Times
A Ball of a Time: A History of the New Year's Eve Ball Drop | The New Yorker
What is a Time Ball? - History Nebraska
The Deal Time Ball (1864-1927)
Time ball | Royal Museums Greenwich
Times Square ball to get LED makeover
GUILDHALL GREENWICH TIME BALL | CITY PLAN HULL
Time ball - Wikipedia
The History Of The Times Square Ball Drop
I Built a Time-Ball (Because Greenwich's Broke) - YouTube
THE TIMEBALL STATION | CHRISTCHURCH
The London Time Ball – BLDGBLOG
The Horological Origins of the New Year's Ball Drop - Worn & Wound
The Greenwich Time Ball | Royal Museums Greenwich
File:Time Ball, Greenwich 010510.JPG - Wikimedia Commons
The London Time Ball – BLDGBLOG
The History Of The Times Square Ball Drop
Dropping Balls to Tell Time | Amusing Planet
Time balls: The rise and fall of a timekeeping icon - BBC News
Time ball | Royal Museums Greenwich
Time balls: The rise and fall of a timekeeping icon - BBC News
