is 137.86 km/h (85.66 mph) on the set of The Gadget Show on 29 October 2008. The fastest speed in a water jet–powered car is 26.8 km/h (16.65 mph) and was achieved on the set of The Gadget Show on 15 March 2010. The longest ramp jump performed by a remote controlled model car is 26.18 m achieved by an HPI Vorza on the set of The Gadget Show on 25 March 2010. (He has since been beaten by Thomas Strobel from Germany on 30 July 2011 with a distance of 36.9 m.) The fastest speed attained on a jet-powered street luge is 186.41 km/h (115.83 mph), achieved on the set of The Gadget Show's 200th episode on 9 August 2011. Books Bradbury has written a series of techno-thrillers for 8- to 13-year-olds called Dot Robot. The first in the trilogy, Dot Robot, tells the story of a twelve-year-old mathematics and computer gaming genius, recruited into a top-secret robot defence-force. He has also been touring schools in the UK since publication of the series with an interactive robot experience called The Dot Robot Roadshow. His second book Atomic Swarm, was published by Puffin on 1 February 2010 and the last in the trilogy, Cyber Gold, was published on 7 April 2011. Personal life Bradbury was born in Birmingham but grew up in Lincolnshire, attending New York, Lincolnshire Primary School and Gartree Community School. He later moved to London. Bradbury has been married to Claire since 8 April 2012; they have three children. He is also a very active Twitter user with just over 260,000 'followers'. Bradbury also has a private pilot's licence and holds a UK radio amateur licence with callsign 2E0JAB. Jason now lives in Newquay, Cornwall since July 2021. References External links Jason's page on Puffin.co.uk Dot Robot Official Site (which hides a secret link) Jason Bradbury's page on AuthorsAbroad.com School Author Visits DIY Hoverboard - YouTube Video English television presenters People from Birmingham, West Midlands Living people 1969 births People educated at Lincoln College, Lincolnshire