Understanding How Shadows Are Formed

<h1>Understanding How Shadows Are Formed</h1>Author: <a title="Peter Garant" href="http://www.articlesbase.com/authors/peter-garant/33267.htm">Peter Garant</a> Whether you are walking to the office or inside reading a book, there will be shadows all around you. But have you ever wondered how these are formed in the first place? 
 
Forming shadows require an object to block the movement of light. We see everything because of light, that electromagnetic wave that allows us to view the object. For example, if you stand on the sidewalk, you are able to see the pavement before you because the light that hits its surface bounces back to your eyes. 
 
But if you stand over the spot, the passage of the light will be blocked by your physical body, forming shadows. The shadow, therefore, is that part of any object which light cannot access. Perhaps an even better example would be a room. Turn on the light and you will see everything; turn it off and there is darkness. If you use a low key light, then several shadows will appear. 
 
Although light (or the lack of it) is responsible for forming shadows, there are other things that help determine the shape and size of it. In particular if the angle of the light and the object is around ninety degrees. If the angle of the light is smaller, then the shadow will be much longer than normal. If the object that is blocking the path is very near the light source, a larger shadow will appear. 
 
The size of the shadows of course, will also be determined if the object is in motion. Usually the size of the shadow will be slightly longer or larger than the moving object. 
 
The size of the light source is also crucial in forming shadows. If it is big, then expect the shadows to be more blurry. Other factors that will come into play will be other light sources or effects that may cause the light to bend. If the light source emanates from numerous directions and points, you will see several shadows, some of them overlapping. Depending on the color of the light, you will also see shadows of different lights and shades. 
 
Colored shadows, for the most part, are generated when the multicolored light sources produce white light. If there is no white, the complementary hue for the lights that are being blocked will be reflected on the shadow. For example, if the light is blue, then the shadow that will appear is red, while for green, it can be yellow or purple, depending on the shade. 
 
With these explanations, it should be obvious why the time of day plays a vital role in forming shadows, the sun being the primary source of light on the objects around you. However, it would be appropriate to dismiss a myth here right now, which is that shadows get longer as the day fades. The opposite is in fact the case. 
 
Knowledge is power, it is said, and this is certainly true in this case. The next time that you are forming shadow puppets on the wall, you will have a better idea of how these tricks of light are formed.About the Author: Peter Garant is a technology and science consultant and has written many articles such as How Are <a href="http://www.iqio.org/how-are-shadows-formed">Shadows Formed</a>? and How to Make <a href="http://www.iqio.org/how-to-make-sugar-crystals">Sugar Crystals</a>? for Iqio Web Site.Article Source: <a href="http://www.articlesbase.com/">ArticlesBase.com</a> - <a href="http://www.articlesbase.com/education-articles/understanding-how-shadows-are-formed-1204925.html" title="Understanding How Shadows Are Formed">Understanding How Shadows Are Formed</a>

Whether you are walking to the office or inside reading a book, there will be shadows all around you. But have you ever wondered how these are formed in the first place?

Forming shadows require an object to block the movement of light. We see everything because of light, that electromagnetic wave that allows us to view the object. For example, if you stand on the sidewalk, you are able to see the pavement before you because the light that hits its surface bounces back to your eyes.

But if you stand over the spot, the passage of the light will be blocked by your physical body, forming shadows. The shadow, therefore, is that part of any object which light cannot access. Perhaps an even better example would be a room. Turn on the light and you will see everything; turn it off and there is darkness. If you use a low key light, then several shadows will appear.

Although light (or the lack of it) is responsible for forming shadows, there are other things that help determine the shape and size of it. In particular if the angle of the light and the object is around ninety degrees. If the angle of the light is smaller, then the shadow will be much longer than normal. If the object that is blocking the path is very near the light source, a larger shadow will appear.

The size of the shadows of course, will also be determined if the object is in motion. Usually the size of the shadow will be slightly longer or larger than the moving object.

The size of the light source is also crucial in forming shadows. If it is big, then expect the shadows to be more blurry. Other factors that will come into play will be other light sources or effects that may cause the light to bend. If the light source emanates from numerous directions and points, you will see several shadows, some of them overlapping. Depending on the color of the light, you will also see shadows of different lights and shades.

Colored shadows, for the most part, are generated when the multicolored light sources produce white light. If there is no white, the complementary hue for the lights that are being blocked will be reflected on the shadow. For example, if the light is blue, then the shadow that will appear is red, while for green, it can be yellow or purple, depending on the shade.

With these explanations, it should be obvious why the time of day plays a vital role in forming shadows, the sun being the primary source of light on the objects around you. However, it would be appropriate to dismiss a myth here right now, which is that shadows get longer as the day fades. The opposite is in fact the case.

Knowledge is power, it is said, and this is certainly true in this case. The next time that you are forming shadow puppets on the wall, you will have a better idea of how these tricks of light are formed.

Peter Garant is a technology and science consultant and has written many articles such as How Are Shadows Formed? and How to Make Sugar Crystals? for Iqio Web Site.

Rate this Article:

0 / 5 stars - 0 vote(s)

Re-Publish

Article Source: http://www.articlesbase.com/education-articles/understanding-how-shadows-are-formed-1204925.html

Article Tags: Forming Shadows, How Are Shadows Formed

Related Videos
Related Articles
Ask / Related Q&A

Play

How to Adjust Light and Shadows in Photoshop Elements

Play

Shadow Edge Transfers in Photography

Play

Guitar Hero 2: The Light That Blinds, Part 1

Play

Guitar Hero 2: The Light That Blinds, Part 2

Play

Light and Shadows Quilt Block

Latest Education Articles
More from Peter Garant

Is PSP Go Download Center downloading site a Scam or Real Deal?

By: Peter Jackson | 31/12/2009
More than likely if you've been searching for PSP Go games, you've come across some info about a site called the PSP Go Download Center. And if you're like me you probably wondered if PSP Go Download Center scam or an actual deal. Let me share with you my findings. A week or so ago I was online and doing a Google search for PSP Go games to find somewhere other than the Playstation store that I could get games for my new handheld. Through my searches I came across a couple places that talked abo

Why PSP Go Download Center is the Best Choice

By: Peter Jackson | 31/12/2009
So you just bought your PSP and you want to know which is the best site, to download all your stuff from. We say PSP GO Download Centre is the best choice for many reasons some of which are discussed belowFirstly, it has the biggest and largest database online keeping in mind the PSP Go. PSP Go Download Center contains over 200,000 Downloads making it the Biggest Database for the PSP and PSP GO!

Opportunities in the Police

By: Tobay Dytham Swifft | 31/12/2009
Many of us have considered joining the services at some stage in our lives whether its the medical, fire fighting or a law enforcing one. The thrill of pressure and making such a huge difference can be a hugely appealing for many of us who would seek to make the most of the time we can spend in work.

PSP Go games free download - You can download PSP Go games and more form PSP Go Download Center

By: Jack Corner | 31/12/2009
Do you want to get your favorite game for your new PSP Go? Do you want to spend thousand of dollars to find a new but a good game? So you have some options here. Buying games was for me a problem because if maybe I don’t like the game and I can’t refund my money. With PSP Go Download Center for one time fee I get all the games, if I don’t like a game, I can always download a new one without any extra fee! PSP Go Download Center is really a great site!

PSP Go Download Center – The Truth about PSP Go Download Center

By: Jack Corner | 31/12/2009
PSP Go Download Center is a membership based programs that providing game download service. Not only you can get your PSP game from Playstation store, you can also download them from a Sony licensed website like PSP Go Download Center. The program is legitimate because it has granted the license agreement from Sony Corp in order to provide games, movies and music under PSP trademark for download, so you wouldn’t have to worry about copyrighted materials when downloading from PSP Go Download Ce

Free Psp and PSP GO Games Downloads – Get Free Downloadable Psp Games

By: Peter Jackson | 31/12/2009
Unfortunately, there is no such thing as download free PSP games. Well, perhaps there are people who really offer free PSP games downloads but there is a risk associated there. Nothing in this life is for free except for the air that we breathe. Anyhow, there are certainly websites that offer free PSP files and free PSP games downloads. However, there may be certain terms and conditions that you may not like. The first option is per-to-peer file sharing. This means that as a member, you will be

Kids just love to explore Christmas holidays

By: deepti | 30/12/2009
When I was a kid , my mom read us Christmas stories extracted from Christian magazines, or borrowed from local library. These story times remain some of my most mesmerizing and cherished Christmas memories.

Florida Schools Awarded for Human Rights Advocacy

By: Chad Andro | 30/12/2009
Following the tragedies of World War II, a solution was needed to prevent such horrors from occurring again.

Tips on Buying Tanning Lotions Wholesale

By: Peter Garant | 03/10/2009 | Health
It is important to buy a good tanning lotion if you are going to have an indoor session for tanning just as much as it is important to use one when tanning under the sun's rays. However one common problem is not using enough lotion because the lotion for tanners...

Tanning Without the Sun

By: Peter Garant | 03/10/2009 | Health
The months of April and May are the hottest months of the year where people get out of their homes and head to the beaches to enjoy the summer fun. The morning sun glaring in the sky is the perfect time to get the lovely tan people want and crave...

Understanding the Various Ways of Cooking Lamb Chops

By: Peter Garant | 07/09/2009 | Food & Beverage
One of the special and expensive meats that are used in preparing and cooking numerous dishes, lamb chop is very sumptuous and delicious, which makes it more enticing to many people. Most kinds of lamb chop like lamb loin chop and lamb rib chop are costly. However, to those who...

Understanding How Shadows Are Formed

By: Peter Garant | 07/09/2009 | Education
Whether you are walking to the office or inside reading a book, there will be shadows all around you. But have you ever wondered how these are formed in the first place? Forming shadows require an object to block the movement of light. We see everything because of light, that electromagnetic...

Using a Lensatic Compass

By: Peter Garant | 07/09/2009 | Education
If you are having trouble finding your way around or have forgotten how to use the stars for navigating, learning how to use a lensatic compass will help you get back on the right track. Like most compasses, the lensatic compass is magnetized to point towards north. It looks a...

Learn the Different Ways of Cooking Bratwursts

By: Peter Garant | 07/09/2009 | Food & Beverage
Bratwursts are basically German-style sausages that use either pork, veal, or beef as a major ingredient. To give these special sausages a uniquely palatable taste, people usually add nutmeg, ginger, and pepper to spice up their flavors. More often than not, these sausages are also served with sauerkraut, which is...

A Guide For Using

By: Peter Garant | 07/09/2009 | Computers
One of the most common problems that occur among computer users is that of forgetting usernames or passwords. Here are some suggestions for managing your LinkSys password. Assuming you have forgotten it, one thing that you can do is to reset everything, including the router. Although the approach may differ in...

Understanding CSMA-CD and How it Works

By: Peter Garant | 07/09/2009 | Computers
Running a computer network entails a lot of work for the administrator or manager, and among the many things that needs to be understood correctly is the CSMA-CD. This protocol is essential study for all those who want to better handle their systems. The CSMA-CD stands for Carrier Sense Multiple...