The largest collection of wind up toys is 1,042 toys and belongs to William Keuntje (USA), in Landing, New Jersey, USA, as of 26 November 2011. The collection began with a Christmas present in 1975 and has grown tremendously over the years, thanks in part to donations and gifts from friends and family. To celebrate his world record attempt, William hosted an event at his home entitled ‘Wind It Up’, which featured a wind up toy quiz. The prize for the winner was, of course,
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The most people unwrapping a candy simultaneously is 614, achieved by the School Wide Activities Team at Tarleton State University (USA), in Stephenville, Texas, USA, on 21 March 2013.
The largest collection of unprocessed film consists of 1,250 different analogue films and belongs to Ying Nga Chow (Hong Kong) in Hong Kong, China, as of 30 June 2012. Ying Nga Chow is a fan of analogue photography and started her collection in 2008.
The most skips on a unicycle in one minute is 237 and was achieved by Peter Nestler (USA) at Moorhead Junior High School in Conroe, Texas, USA, on 20 February 2013.
The most people crammed on an unmodified bus is 229 and was achieved by the Faculty of Mechanical Engineering of the Krakow University of Technology in Krakow, Poland, on 1 June 2011. The bus took a 75-metre journey lasting 57 seconds with all 229 passengers inside.
The HOLOMAR underwater holographic camera, developed by a team led by Aberdeen University, is capable of recording 3-D images of objects as small as 100 microns across in up to 100 litres of water. 100 microns is about the width of an average human hair
Stig Åvall Severinsen (Denmark) swam 76.2 m (250 ft) under ice at Qorlortoq Lake (Lake 40) in Ammasslik Island, Sermersoq Municipality, East Greenland on 17 April 2013. The depth of the ice was between 80 and 100 cm (2.62 and 3.28 feet).
The tallest rideable unicycle measures 3.08 m (10 ft 1.26 in), and was ridden by Mushegh Khachatryan (Armenia), in Yerevan, Armenia, on 28 September 2013. Mushegh rode his unicycle over a distance of 25.19 m (82 ft 7.73 in).
The longest supported underwater live radio broadcast lasted 5 hours and 6 minutes and was achieved by Simon Clarke (UK) for Wave 105.2 FM in aid of Cash 4 Kids, and with support from Andark Diving. The attempt took place at the Andark Diving Centre in Southampton, UK on 15 November 2011. They used a diving bell to assist their attempt and Simon was supported by a presenter on the poolside. The attempt was in aid of ‘Cash for Kids’ charity.
The most contributors to a comic book (unpublished) is 1,087, achieved by Shueisha Inc. in Japan on 12 December 2012. The attempt was carried out in an online event called “Social Kingdom,” and each participant contributed fully to each panel of the comic book. The comic is based on a popular Japanese manga called “Kingdom”, whose author Yasuhisa Hara also participated in the attempt.