Hi How Fun Box: Hi Mechanic? Free Mechanical Aptitude Test

25 Oct 2012

Hi Mechanic? Free Mechanical Aptitude Test

Hi Mechanical Reasoning?!?

This free Mechanical aptitude tests measures your knowledge of straightforward physical and mechanical concepts. Your score will depend significantly on your knowledge of:

Levers

Pulleys

Springs

Simple Electrical Circuits

Tools

Shop Arithmetic

Mechanical Reasoning Download Here

Hi What Causes A Rainbow To Form?

What you are actually looking at when you see a rainbow is falling rain.

The falling rain causes white sunlight to bend into separate wavelengths of visible light.

This is what causes the colorful bands that form the rainbow.

To see a rainbow it must be raining in one part of the sky (in front of you) and the sun must be shining behind you.

Each color that we see has a particular wavelength that corresponds to the above color spectrum chart.

Short wavelengths are perceived as purple or blue and longer wavelengths are perceived as red or orange.

The actual colors in the rainbow are dependent upon which wavelengths the rain bends the light into from your position.

The raindrops act like a prism separating white sunlight into its separate wavelengths.

When you see a rainbow the sun will always be in back of you and the falling rain will be in front of you.

The rainbow continually changes because each falling raindrop bends the light slightly differently.

In addition, no two people ever see the same rainbow because the wavelengths of light will be slightly different depending on where you are in relation to the falling rain.

Contrary to popular folklore, there is no pot of gold at the end of the rainbow.

25 Oct 2012

Hi Mechanic? Free Mechanical Aptitude Test

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