The Importance Of Light

Go online and search the word “light”. What’s seen there? 4,270,000,000 results of a boat-load of definitions and websites and most likely the sun, right? Slightly exciting, but the real magic happens when you click on images. There are dazzling pictures of space, glowing fires, destructing lightning bolts, and vibrant smiles on faces. Instead of asking what is seen, ask what is felt. One may feel many emotions: happiness, amazement, curiosity and much more. Despite the feeling though, it’s impressing. Not impressing as in admiration or respect, although that can be felt, but as in making an everlasting mark.

The incandescent light bulb was a phenomenal discovery that occurred during the late 1800’s and was mainly invented by a man named Thomas Edison. It became a recent essential product that we humans use on a daily basis in many more appliances than one. This invention was created in 1890 in New Jersey by Thomas Edison to help people to be able to work during the night after night had fallen and to make people’s lives easier ("Edison's Lightbulb”). It helped many people in an amazing array of different ways, however, everything has it’s disadvantages, and so did the incandescent light bulb ("History of the Incandescent Light.”)

Light is a form of energy that behaves in some ways like waves. Light waves have a range of wavelengths. A wavelength is the distance between any point on one wave and the corresponding point on the next wave. Different wavelengths of light appear to us as different colors. Light that contains all wavelengths in the same proportions as sunlight appears white. See LIGHT.

The light bulb was an amazing invention when it was first created and it still is today except people overlooked a few things about the first light bulb - also known as the incandescent light bulb. The things that people overlooked on the incandescent light bulb was the fact that it guzzled up so much energy. Another problem with the incandescent light bulb was that it emitted carbon dioxide. One final problem with the incandescent light bulb

A stars luminosity is measured by the apparent magnitude and absolute magnitude of the star and the amount of the light that is being emitting from it’s surface.

Getting a full day of work in used to be impossible without the light bulb because it is really hard to see in the dark without light. When the light bulb was invented, businesses started to produce more because the workers had longer hours, with more hours being available, more job opportunities opened up. Other machines that were used in factories like the sewing machine could not be used without the light bulb being there to light the factory. The light bulb also improved education in the

1-14 Bellringer 2: Incandescent bulbs give off a warm glow. The researchers created a bulb that still had filament in the center, but was surrounded with a new kind of filter that sits around the filament.

Many physical properties of stars can be found by using a little bit of light. One property of a star is luminosity. Luminosity is the quantity of energy created in a star and then released as electromagnetic radiation. The brightness of a star is a blend of luminosity and distance of a star and can also depend on the quantity of energy absorbed in the direction of a star. Another property of a star is distance. Astronomers use parallax to establish the distance to an object. As Earth travels around the Sun, they monitor neighboring stars from various positions. They are then able to measure how much the star seems to move to establish the distance to the star.

The light emitting diodes (LEDs) are low energy, lighting devices with a long lifespan and low energy consumption. The LEDs use specialized power

The brightness needs to be equal to or greater than existing light technologies, such as incandescent and CFL. The lights should be well distributed over the area lighted by the fixture. Light output needs to remain constant over time. It should only decrease toward the end of the rated lifetime. Lifetimes can last 35,000 hours or 12 years, based on 8 hour use per

Natural light access is an important factor in housing, psychologically it makes the mind more

Today’s most efficient way of illumination and lighting, with an estimated energy efficiency of 80%-90% when compared to traditional lighting and conventional light bulbs. This means that about 80% of the electrical energy is converted to light, while a ca. 20% is lost and converted into other forms of energy such as heat.

Can you ever imagine a world without light bulb? Before light bulb was created, the night can only be lit by the moon and stars. People working and traveling after sunset could only use candles or oil lamps, which caused many inconveniences. Without any bright light, moving inside your own house even seemed dangerous. However, things changed after the ambitious inventors brought their bright idea, which was to light the world, to life. The invention and the commercialization of light bulb not only changed the way people live, but also became a technological breakthrough for future energy use in our daily lives.

This report will discuss the advantages, disadvantages and details of both natural daylight and artificial lighting systems in terms of developing within a commercial property. The report provides detailed research and analysis concerning the subject topic in order to give a comprehensive view of various lighting types and methods. Light is an electromagnetic radiation visible to the human eye, the wavelengths visible to humans range between 380nm (nanometers) to 740nm. Light behaves as a wave - it undergoes reflection, refraction, and diffraction just like any wave would.

With today’s science, light becomes more specifically perceived as a spectrum. The specific name for this spectrum is the electromagnetic spectrum, which contains many types of waves (NASA, Electromagnetic Spectrum). In Figure 2, the spectrum shows a variety of wavelengths with specific wavelengths classified by its length. The range of wavelengths humans can see wavelengths that are around 400 – 700 nanometers (nm) as colors while all other electromagnetic waves are simply blind to humans. The interesting classes for light that are used to measure are microwave and infrared light. The laser is