Because light travels in a straight line through the contours of space-time, a light beam will curve where space-time curves, this curving was first measured in 1919.
因为光沿时空走直线,所以光线在时空弯曲的地方会弯曲。这现象在1919年首次被观测到。
2
Curving Windows peep above the ground to bring light into this underground car park in South Holland, which is covered in grassy hillocks to replicate a dune landscape.