Urawa Red Diamonds 19 December 2018." The following players have represented their country at the World Cup whilst playing for Urawa Red Diamonds: World Cup 1998 World Cup 2006 World Cup 2010 World Cup 2014 World Cup 2018 Excepting two seasons in which they were in the second tier, Mitsubishi/Urawa has always competed in the top flight, thereby being the club with the most top flight seasons total. Urawa Red Diamonds , colloquially Urawa Reds, are a professional association football club playing in Japan's football league, J1 League. The name Red Diamonds alludes to the club's pre-professional era parent company Mitsubishi. The corporation's
Reuleaux triangle three-cornered shape of the Reuleaux triangle may be seen both as a symbol of the Trinity, and as "an act of opposition to the form of the circle". The Reuleaux triangle has also been used in other styles of architecture. For instance, Leonardo da Vinci sketched this shape as the plan for a fortification. A modern high-rise building, the Kölntriangle in Cologne, Germany, was built with a Reuleaux triangle cross-section. Together with the circular shape of its core, this gives varied depths to the rooms of the building. Another early application of the Reuleaux triangle, by Leonardo da Vinci circa