Subway systems are uncomfortably hot — and worsening. As above-ground temperatures rise, below-ground thermal complaints increase. London’s Underground hit 47°C inside its tunnels in 2008, a figure that exceeded the highest surface temperature ever recorded in the city, which reached 40.2°C (104°F)

2026年1月15日 · 周杰 · 来源：tutorial快讯

Evidence from koalas suggest that even species pushed to the brink of extinction can recover lost genetic diversity. Plus, the first ‘half Möbius’ carbon-based molecule and a mathematician modelling Mexico’s drug cartels.

Фото: Matt Rourke / Reuters

20版，详情可参考易歪歪官网

id req = [_ANERequest requestWithInputs:@[wA, wB]

Discover all the plans currently available in your country

Istanbul's

Фото: Atef Hassan / Reuters