Houses of Parliament Personalised A6 Postcards - Red Banners
Each postcard is 105mm x 148mm
What makes the clock work? Are you ready for this?! GRAVITY. There are huge weights on long cables that attach to each train of gears. The clock engineers wind the cables three times a week, and as gravity pulls the weights down, the trains rotate. Their rotation is regulated by the escapement and the swinging pendulum. As long as the clock is properly wound, and as long as gravity keeps working (which looks likely), the Great Westminster Clock will keep on ticking!