科学与环境

Vibrating mirrors of light create analog of a black hole event horizon

来源: Phys.org - latest science and technology news stories · 发布于

Vibrating mirrors of light create analog of a black hole event horizon
来源: Phys.org - latest science and technology news stories

Optical cavities are pairs of light-trapping mirrors and underpin the operation of lasers, atomic clocks and many types of precision sensors. If the distance between the mirrors is changed rapidly enough, some theories predict that the waves inside them should bunch together into

Optical cavities are pairs of light-trapping mirrors and underpin the operation of lasers, atomic clocks and many types of precision sensors. If the distance between the mirrors is changed rapidly enough, some theories predict that the waves inside them should bunch together into short, intense pulses. So far, however, this prediction has never been tested directly.

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The worse climate change gets, the harder it becomes to stop it
科学与环境

The worse climate change gets, the harder it becomes to stop it

This year may be seen as a turning point in the climate crisis. The U.N. has accepted that global warming is going to exceed 1.5°C, while climate scientists have concluded that the rate of warming has effectively doubled over the past decade.

Phys.org - latest science and technology news stories ·