The speed of light in a vacuum is the absolute speed limit of the universe. Nothing will go faster than 299,792 kilometers ...

What are the origins of slow-light research and where is the field heading? Nature Photonics spoke to Robert Boyd to find out. Actually, ideas about slow and fast light go back at least 170 years.

So, why slow light down? The second answer is that faster is not always better, as the well-known fable of the hare and the tortoise demonstrates (see Fig. 1). Using light smartly rather than ...

Maxwell's equations didn't seem to allow light to slow down or stop when moving through space. Einstein's answer—that light's speed is constant for all observers regardless of their own velocity ...

How to Fix Slow Internet Check Your Internet Plan First things first, consider your internet plan. If you love streaming ...

While there isn't any solid research backing the use of blue light lenses for eye health, many people turn to blue light-blocking glasses to effectively filter blue light, reduce light exposure ...

Learn more› By Joanne Chen and Annie Chou Our upgrade pick, the Philips SmartSleep Connected Sleep and Wake-Up Light HF3670, has been discontinued. If you wake up confused and panicked at the ...

In this mind-bending series, Professor Jim Al-Khalili shows how by uncovering its secrets, scientists have used light to reveal the universe. There's a whole universe of science to discover from ...

To master the art of slow eating, put on some music, light a few candles, turn off the TV and any other distractions, and concentrate on your meal. A perfect place to start is with dessert.

A weak vibration doesn't travel very far. Discover more about volume. All about light Learn how light travels and how we see different colours. What is light? Light comes from different sources ...

A series of new animations by a NASA scientist show just how zippy - and also torturously slow - the speed of light can be. Light-speed is the fastest that any material object can travel through ...