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The Lighthouse

And God said, Let there be light: and there was light. And God saw the light, that it was good: and God divided the light from the ... And God called the light Day, and the darkness he called N

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Growing Plants with LED's

In some ... life is defined, as a power that ... a purpose to feed, process matter into energy, grow, and ... Life means ... a state of being. No matter how we look at

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Influence of Curing Light Type on the Discoloring Stability of Dental Restorative Composite

Discoloration kinetics of 4 commercial nano-filled resin composites polymerized with LED and QTH source types in 4 different staining media held at 37°C are investigated. Quartz Tungsten Halogen (QTH) and Light Emitting Diode (LED) were used. Dental composites color change was monitored with a digital spectrophotometer at one, two and four weeks for quantitative comparison. The kinetics and intensities of the color change in accelerated aging tests in staining media were monitored and discussed. Discoloring followed diffusive driven kinetics. The four composites polymerized with QTH light showed higher differences in color change intensities compared to LED cured ones.

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Nine Key Lighting Parameters

Thanks for reading the article: Nine Key Lighting Parameters LightInStar Team

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Website Videos Improved in Less Than Three Minutes

We all have watched videos that need some help. Learn about color temperature, diffused light, tripods, and common mistakes people make that are easy to fix.

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The Metaphysical View of Death and Life After Death Part 7

Process of the dissolution of the physical form. The Three Bardos.

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How to Install Light Bulbs

Installation is quite easy once you know how.

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LED Lighting: 10 Things to Know

LEDs are becoming increasingly popular and more high-quality LED lighting products are being manufactured and sold. For a number of reasons, including energy-efficiency, LED lighting is an attractive alternative to incandescent or fluorescent lighting in both residential and commercial lighting applications. Here are 10 things that you should know about this newly-emerging light source.

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How A Light Bulb Works and Other Interesting Tidbits

Light Bulb Science Ever wonder how a light bulb works? I mean it seems easy, you flick a switch and "bam" there is light! While not much more complicated than that, there is a little science involved.

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Light - Medicine of the Future

Light - Medicine Of The ... ... ... email: ... from "Light Medicine of the Future" by Jacob ... ...

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LEDs

LED was discovered accidentally in the early last century (1907). In early development stage, carborundum crystals were used as light-emitting active material Nick Holonyak Jr. of the General Electric Company has developed the first practical visible-spectrum LED in 1962

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A specific logo for cosmetic products to protect pregnant women

A logo may be introduced in France to control the cosmetic industry and protect pregnant women from the toxicity of certain chemicals.

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Better Photo Tips - Studio Light Patterns

It is not a big secret that all photos are made of light. What to do with that light on the other hand, often confuses many beginning photographers. The goal here is to help you see that light in a much simpler way.

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How Does a Photoelectric Sensor Work?

As an important feature, a photoelectric sensor emits a light beam (visible or infrared) from its light-emitting element. And outputs from photoelectric sensors are typically either digital or analog. So why does it can do it? In other words, how does a photoelectric sensor work?

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Energy from stars

Energy development is the effort to provide sufficient primary energy sources and secondary energy forms for supply, cost, impact on air pollution and water pollution, mitigation of climate change with renewable energy. Technologically advanced societies have become increasingly dependent on external energy sources for transportation, the production of many manufactured goods, and the delivery of energy services.

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