For reference, the moon is roughly 24,000 miles away, and Mirfak, the brightest star in the constellation Perseus, is 510 light-years away. The meteors are very close, in other words — so close ...

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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 ...

This mid-range Android phone brings HTC's high-end design to a more affordable price point. Key features include a memory card slot, dual cameras, and DLNA.

When someone’s heart doesn’t beat quite right, an implantable defibrillator can save their life. The devices can jump-start a misbehaving heart, resetting its normal rhythm — unless they ...

We need light to see. Light can come from many different sources, such as the Sun, stars, torches, lamps and candles. Some sources of light are so powerful that they can damage our eyes if we ...

Nizamoglu, Sedat Ozel, Tuncay Sari, Emre and Demir, Hilmi Volkan 2006. White Light Generation with CdSe/ZnS Core-Shell Nanocrystals and InGaN/GaN Light Emitting Diodes. p. 21.

Having the right LED light bulb for each section in your home is important for setting the right tone. You can liven up a room with vibrant lighting or even some fun, colorful LED light bulbs.

When a wave or light ray moves from one medium to another its speed changes. The direction of the ray may also change. This property of waves is called refraction and commonly occurs with light rays.

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