VICEさんのインスタグラム写真 - (VICEInstagram)「"Turns out, pretty much everything we know in optics is out of the window."⁠ ⁠ One of the most basic properties of light is that it changes speed and direction in different substances, such as water or air. Now, scientists have managed to defy this photonic principle with a special laser made of “spacetime wave packets” that do not slow down in denser materials, according to a recent study published in Nature Photonics. In fact, this new class of lasers can actually accelerate in a dense medium, among its many other optical superpowers.⁠ ⁠ Link in bio for more. ⁠ ⁠ 📸: FLICKR/ANDREA.PACELLI」8月12日 23時35分