The feat is not just a parlour trick—it could help people visualise how light travels in the curved fabric of space.
这一壮举不仅仅是客厅里的把戏——它可以帮助人们想象光是如何在弯曲的空间结构中传播的。
2
This video dress displayed a time-lapsed image of a rose opening up and closing, with an array of colours and light, made possible by 15, 000 LEDs embedded in the fabric.
Gravitational lensing takes advantage of the fact that large celestial objects such as stars or planets warp the fabric of space-time such that light rays passing nearby are bent.