London Duck Tour

London Duck Tours These amphibious vehicles drive past famous London landmarks such as Big Ben, the Houses of Parliament and Trafalgar Square before a dramatic launch into the River Thames from the MI6 slipway.  All this on vehicles used for the D-Day landings in 1944. A really exciting a different way of seeing the site. For more details, visit www.londonducktours.co.uk

What happens when one object is sliding over another, when there is feedback relative motion between two surfaces