Ring diameter (tawara)4.55 m
2.99Dolly Partons
5.4 billionGlucose molecules
103Oreo diameters
Inner rice-straw boundary
Photo from Wikimedia Commons
Sumo Dohyo
The sacred clay ring of Japan's ancient national sport/Sports
The dohyo is the ring in which sumo wrestling bouts take place. It is a raised platform of packed clay 34-60 cm high and 6.7 m on each side, with a circular ring (tawara) 4.55 m in diameter marked by partially buried rice-straw bales. A new dohyo is built for each tournament, with a Shinto ceremony to purify the ground. The roof above the ring (tsuriyane) represents a Shinto shrine. The simplicity of the dohyo belies the complexity of the sport: two wrestlers in a 4.55 m circle, first to touch the ground or leave the ring loses.
Measurements
Platform side length6.7 m
7.33Tennis nets
1.3 millionSpider silk threads
6.7 trillionGamma ray wavelengths
Square raised clay platform
Platform height5 tenths m
20 millionRibosomes
6.58Hockey puck diameters
7.3 tenthsTennis rackets
Raised above arena floor
Ring area16.3 m2
47.9 millionthsDisneylands
27,167Postage stamps
347iPad screens
Circular fighting area
Tawara (bale) diameter1 tenths m
1.4 hundredthsExtension ladders
66.7Ant antennae
1.35Baseball diameters
Rice-straw boundary bales
Clay mass15,000 kg
150 millionthsAircraft carrier masses
31.3Concert grand pianos
17,647Chipotle bowls
Packed clay platform