Waikiki Natatorium War Memorial to the memorial includes an arch featuring four stone eagles typical of this style. Inside the memorial is a 100 meter by 40 meter salt water swimming pool. In the opening ceremonies on August 24, 1927, the local Olympic gold medal holder Duke Kahanamoku made the first swim (it was his birthday). In the following swim meet, world record holder Johnny Weissmuller won the 100, 400 and 800 meter events, and Buster Crabbe (also local) won the 1500 meters. After the attack on Pearl Harbor in 1941, the natatorium was taken over by the US Army and used for training
Indoor air quality ventilation. Instead of setting throughput at a fixed air replacement rate, carbon dioxide sensors are used to control the rate dynamically, based on the emissions of actual building occupants. For the past several years, there have been many debates among indoor air quality specialists about the proper definition of indoor air quality and specifically what constitutes "acceptable" indoor air quality. One way of quantitatively ensuring the health of indoor air is by the frequency of effective turnover of interior air by replacement with outside air. In the UK, for example, classrooms are required to have 2.5 outdoor air changes per