Magenta Ain't A Colour. A beam of white light is made up of all the colours in the spectrum.
The range extends from red through to violet, with orange, yellow, green and blue in between. But there is one colour that is notable by its absence. You should have seen a green afterimage, but why is this significant? The afterimage always shows the colour that is complementary to the colour of the image. Complementary colours are those that are exact opposites in the way the eye perceives them. It is a common misconception that red is complementary to green. All the colours in the light spectrum have complements that exist within the spectrum – except green. The light spectrum consists of a range of wavelengths of electromagnetic radiation. When our eyes see colours, they are actually detecting the different wavelengths of the light hitting the retina.
If the eye receives light of more than one wavelength, the colour generated in the brain is formed from the sum of the input responses on the retina. -Biotele. Games for the Brain. 15 Questions Atheists Are Sick Of Answering. How Things Work. Posted by admin on Dec 28, 2012 in Entertainment | 27 comments For many thing that we all day see in our lives, we don’t know how some of that things work.
Here you can see how things really work. How a Zipper Works Illustrating Pi: Unrolling a Circle’s Circumference How a Pill Press Works How Walschaerts Valve Gear in Steam Locomotives Works How a Caliper Works How a Radial Engine Works How the Geneva Drive Works How a Hypotrochoid is Made How an Alpha Stirling Engine Works How a Sewing Machine Works How to Draw a Yin Yang Symbol Using Circles. Take the Ptest! Its fun. Puzzle - Autumn at the Moelledammen, the Mill Pond. Typing lessons. This is keybr.com, a web application that will help you teach touch typing.
Touch typing is typing without using the sense of sight to find the keys. A person possessing touch typing skills will know their location on the keyboard through muscle memory. It can improve any individual's typing speed and accuracy dramatically. This is a short tutorial that will explain how does this application work. You can use the left and right arrow keys to navigate through these slides. This tutorial is based on these few principles: No boring, repetitive exercises.
Initially it starts generating words from a small subset of the most frequent letters of the alphabet. When you are typing these words, keybr measures time to type a key for every letter in that subset. Once you familiarize yourself with the current subset of letters, the algorithm expands it, including more and more letters to it. So at any time, you will by typing the letters you are least familiar with.
This is the text board. ? ? ? ? ? Get the Free Version - Free, open-source software to help you save money. - StumbleUpon. 50 Fascinating Online Psychology Tests. Is there really anything more fascinating that yourself?
Find out more about yourself with these 50 online psychology tests and Web sites packed full of interesting quizzes. Screen yourself for mental health problems and take the results to you doctor or just see what kind of personality you have. Check out the lighter side of psychology with the Just For Fun test section. Mental Health Tests 1. Multiple Tests All On One Site 14. Do you know yourself better yet? Helps you remember what's happened in your life. Where is the red (html5) Match the arrestee with their alleged crime.
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