Trebuchet fires during the Medieval Combat World Championship 2019, Kyiv, capital of Ukraine, May 18, 2019. Ukrinform. /VVB/
Miguel Aguilar, left, of Rangeview High School, fires his team's trebuchet for accuracy during competition.More than 260 students from 27 schools...
Hong Kong Inter-School Straw Trebuchet Design and Construction Competition. Pictured are Year 1 students from YOT Tin Ka Ping Secondary School, at...
Hong Kong Inter-School Straw Trebuchet Design and Construction Competition. Pictured are Form 3 students from La Salle College, at City University of...
Hong Kong Inter-School Straw Trebuchet Design and Construction Competition, at City University of Hong Kong, Kowloon Tong. 23 April 2006
Hong Kong Inter-School Straw Trebuchet Design and Construction Competition. Pictured are Form 3 students from La Salle College, at City University of...
Hong Kong Inter-School Straw Trebuchet Design and Construction Competition, at City University of Hong Kong, Kowloon Tong. 23 April 2006
Shuttlecock is fired from a trebuchet operated by SPHRC Kung Yik She Secondary School pupils Chow Wan-chiu and Hui Yuk-kwok, 16. 28 April 2006
Shuttlecock is fired from a trebuchet operated by SPHRC Kung Yik She Secondary School pupils Chow Wan-chiu and Hui Yuk-kwok, 16. 28 April 2006
Shuttlecock is fired from a trebuchet operated by SPHRC Kung Yik She Secondary School pupils Chow Wan-chiu and Hui Yuk-kwok, 16.
Robby Scribner , freshman in mechanical engineering and Ian Rees , freshman in electrical/computer engineering, watch as their trebuchet flings a...
Pete Larsen, second right, pulls the arm of a down while testing the weights of a trebuchet being built by the team of GE Access Distribution...
Members of the Valadez Middle School Academy team from Placentia, load their trebuchet for launch during the annual Discovery Cube Pumpkin Launch at...
Members of the Pink Pegasus team from the STEM Academy of Hollywood High School fire their trebuchet during the annual Discovery Cube Pumpkin Launch...
Sofie Vermaas of San Diego, fires the Band of Cousins trebuchet during the annual Discovery Cube Pumpkin Launch at Cal State Fullerton Saturday...
Bruce Smith, of Mission Viejo, watches the Band of Cousins team launch their trebuchet during the annual Discovery Cube Pumpkin Launch at Cal State...
Members of the Valadez Middle School Academy team from Placentia, ready their trebuchet for launch during the annual Discovery Cube Pumpkin Launch at...
Member of the Valadez Middle School Academy team readies the ropes on their dragon themed trebuchet during the annual Discovery Cube Pumpkin Launch...
Winner Trevor O'Neil, of Anaheim Hills, fires his trebuchet for his second hit of the competition during the annual Discovery Cube Pumpkin Launch at...
Winner Trevor O'Neil, of Anaheim Hills, fires his trebuchet for his second hit of the competition during the annual Discovery Cube Pumpkin Launch at...
Daniel Macias fires the CSUF American Society of Engineers' trebuchet during the annual Discovery Cube Pumpkin Launch at Cal State Fullerton Saturday...
Phil Hanlen, a member of the dads group at Loma Vista Elementary School talks to students before launching pumpkins in a catapult and trebuchet in...
Men from the Loma Vista Dads group assemble a trebuchet as they prepare to launch pumpkins for students during the school's annual Pumpkin Chunkin'...
Men from the Loma Vista Dads group assemble a trebuchet as they prepare to launch pumpkins for students during the school's annual Pumpkin Chunkin'...
Students at Loma Vista Elementary School watch as a pumpkin is launched from a trebuchet during the annual Pumpkin Chunkin' event in Santa Ana,...
Kenny Eidsvold helps pull back the weight in a trebuchet as they paunch a pumpkin at Loma Vista Elementary School in Santa Ana, California, October...
Kenny Eidsvold helps pull back the weight in a trebuchet as they paunch a pumpkin at Loma Vista Elementary School in Santa Ana, California, October...
Brianna Vega, left, Blanca Valero, center, and Briana Bahena right, watch as a pumpkin is launched from a trebuchet during Loma Vista Elementary...
Alex Guerrero cheers as he joins other students watching a pumpkin get launched from a trebuchet during Loma Vista Elementary School's annual Pumpkin...