After Usain Bolt was accidentally felled by a cameraman after powering to victory in the 200m, we noticed that the Birds Nest stadium appears to have a strange downwards gravitational pull.
Usain Bolt of Jamaica collides with a cameraman as he celebrates after winning gold in the Men's 200 metres final.
It appears for some unexplained reason that many of the other athletes cannot stay on their feet, apart from Mo Farah who styled out a near tumble in the Men's 5000m.
So one burning question remains, why do athletes keep falling over?
Athletes falling over in Beijing
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BEIJING, CHINA - AUGUST 28: Danielle Williams of Jamaica crosses the finish line to win gold in the Women's 100 metres hurdles final as Tiffany Porter of Great Britain (L) falls during day seven of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 28, 2015 in Beijing, China. (Photo by Michael Steele/Getty Images) (credit:Michael Steele via Getty Images)
(02 of12)
BEIJING, CHINA - AUGUST 24: Rolanda Bell of Panama falls in the Women's 3000 metres steeplechase heats during day three of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 24, 2015 in Beijing, China. (Photo by Alexander Hassenstein/Getty Images for IAAF) (credit:Alexander Hassenstein via Getty Images)
(03 of12)
BEIJING, CHINA - AUGUST 27: Joao Vitor De Oliveira of Brazil falls in the Men's 110 metres hurdles semi-final during day six of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 27, 2015 in Beijing, China. (Photo by Alexander Hassenstein/Getty Images for IAAF) (credit:Alexander Hassenstein via Getty Images)
(04 of12)
Jamaica's Shermaine Williams (L) and USA's Brianna Rollins (R) head to the finish line as Croatia's Andrea Ivancevic (C back) jumps and falls after the final hurdle in a semi-final of the women's 100 metre hurdles athletics event at the 2015 IAAF World Championships at the 'Bird's Nest' National Stadium in Beijing on August 28, 2015. AFP PHOTO / OLIVIER MORIN (Photo credit should read OLIVIER MORIN/AFP/Getty Images) (credit:OLIVIER MORIN via Getty Images)
(05 of12)
Belarus's Alina Talay (C) and USA's Sharika Nelvis (R) compete as USA's Dawn Harper Nelson (L) falls in the semi-final of the women's 100 metre hurdles athletics event at the 2015 IAAF World Championships at the 'Bird's Nest' National Stadium in Beijing on August 28, 2015. AFP PHOTO / GREG BAKER (Photo credit should read GREG BAKER/AFP/Getty Images) (credit:GREG BAKER via Getty Images)
(06 of12)
(L-R) Spain's Yidiel Contreras, Jamaica's Omar McLeod and Trinidad and Tobago's Mikel Thomas compete in a heat of the men's 110 metres hurdles athletics event at the 2015 IAAF World Championships at the 'Bird's Nest' National Stadium in Beijing on August 26, 2015. AFP PHOTO / PEDRO UGARTE (Photo credit should read PEDRO UGARTE/AFP/Getty Images) (credit:PEDRO UGARTE via Getty Images)
(07 of12)
USA's Alysia Johnson Montano falls while competing in a heat of the women's 800 metres athletics event at the 2015 IAAF World Championships at the 'Bird's Nest' National Stadium in Beijing on August 26, 2015. AFP PHOTO / GREG BAKER (Photo credit should read GREG BAKER/AFP/Getty Images) (credit:GREG BAKER via Getty Images)
(08 of12)
BEIJING, CHINA - AUGUST 26: Alysia Johnson Montano of the United States falls in the Women's 800 metres heats during day five of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 26, 2015 in Beijing, China. (Photo by Alexander Hassenstein/Getty Images for IAAF) (credit:Alexander Hassenstein via Getty Images)
(09 of12)
BEIJING, CHINA - AUGUST 24: Sviatlana Kudzelich of Belarus falls in the Women's 3000 metres steeplechase heats during day three of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 24, 2015 in Beijing, China. (Photo by Alexander Hassenstein/Getty Images for IAAF) (credit:Alexander Hassenstein via Getty Images)
(10 of12)
United States' Brianna Rollins, left, crosses the finish line as Croatia's Andrea Ivancevic falls to the track during a womenâs 100m hurdles semifinal at the World Athletics Championships at the Bird's Nest stadium in Beijing, Friday, Aug. 28, 2015. (AP Photo/David J. Phillip) (credit:ASSOCIATED PRESS)
(11 of12)
BEIJING, CHINA - AUGUST 26: Honglin Zhang of China falls during the Men's 110 metres hurdles heats during day five of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 26, 2015 in Beijing, China. (Photo by Andy Lyons/Getty Images) (credit:Andy Lyons via Getty Images)
(12 of12)
United States' Dawn Harper Nelson, left, falls over a hurdle as she competes with Belarus' Alina Talai and United States' Sharika Nelvis, right, in a womenâs 100m hurdles semifinal at the World Athletics Championships at the Bird's Nest stadium in Beijing, Friday, Aug. 28, 2015. (AP Photo/Mark Schiefelbein) (credit:ASSOCIATED PRESS)