How Flying in a Wind Tunnel Unveils the Mysteries of Bird Migration
Scientists use wind tunnels to study bird migration, revealing how birds conserve energy and adapt to changing environments during long-distance flights.
Analysis: China investors hedge U.S. delisting risk with Hong Kong play
Global fund managers holding U.S.-listed Chinese stocks are steadily shifting towards their Hong Kong-traded peers, even as they remain hopeful Beijing and Washington will eventually resolve an audit dispute to keep Chinese firms on American exchanges.
