Modern Living: World's Fair, Asian Style

THE soft, bamboo-covered Senri Hills, which slope gently skyward beyond the city of Osaka, have for centuries been home only to snakes and a host of insects. Not any more; at least, not for the moment. Today the Senri range, the site of Japan's gaudy Expo '70, throbs with life. After only four weeks, the turnstiles at the 815-acre, 73-nation exhibit have clicked off 8,500,000 visitors. The one-day high: 441,000, about equal to the entire population of Buffalo, N.Y. Before the rising sun sets on the 183-day extravaganza, some 50 million Japanese (plus...