Browsing: optical

Look at the Coca-Cola can in the main image.It is not a can, but an optical illusion – a trick of perspective. Can you work out…

Earlier today I posted five optical illusions by Olivier Redon, a French-American inventor. Here they are again – with demonstrations of how he created the effects.Three…

Researchers at Peking University in China test an integrated photonic quantum chip.Credit: Xinhua via AlamyAs generative artificial-intelligence models become more sophisticated and eat up more energy…

It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, falling apart on cosmic scales.If you’re…

Ludlow, A. D., Boyd, M. M., Ye, J., Peik, E. & Schmidt, P. O. Optical atomic clocks. Rev. Mod. Phys. 87, 637–701 (2015).Article  ADS  CAS  Google…