The reactions of nitrous acid with 1Â°- and 2Â°- aliphatic amines may be explained by considering their behavior with the nitrosonium cation, NO(+) , an electrophilic species present in acidic nitrous acid solutions.
Main article: Indoor water park. The first-ever indoor water park was built in Edmonton, Alberta, Canada, in 1985 at the West Edmonton Mall as part of the $1.2-billion-dollar Phase III expansion. World Waterpark is still the world's largest indoor water park, at over 817,800 sq ft (75,980 m 2) in size.
Indoor water parks. The first-ever indoor water park was built in Edmonton, Alberta, Canada, in 1985 at the West Edmonton Mall as part of the $1.2-billion-dollar Phase III expansion. World Waterpark is the world's second largest indoor water park, at over 225,000 sq ft (20,900 m2) in size. It includes the world's largest indoor wave pool, water slides of varying degrees, tube rides, bungee jumping, and hot tubs. Tropical Islands Resort (Germany), with an area of 710,000 sq ft (66,000 m2), is currently the largest indoor water park in the world.