Hi How Fun Box: Hi Audio Industry Noise.

18 Feb 2013

Hi Audio Industry Noise.

Hi Audio Industry Noise.

- Extractor Fan

Industrial fan, switched on and off.

Click Here To Listen: Extractor Fan Sound Clip Preview

- LARGE HVAC TURNS ON, RUNS, TURNS OFF

Large HVAC unit for building is switched on, runs for a minute and is powered down. Hear belts moving rhythmically.

Click Here To Listen: Large HVAC Sound Clip Preview

- INDUSTRIAL FAN

Industrial fan. Electric fan blowing air into a children's jumping castle. Also general industry fan, large fan.

Click Here To Listen: Industrial Fan Sound Clip Preview

- FAN MOTOR STARTING

Fan motor cranking to start.

Click Here To Listen: Fan Motor Sound Clip Preview

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.

18 Feb 2013

Hi Audio Industry Noise.

Hi Translate

Hi Fun Science Features!

Hi Wikipedia Search

Hi E Community Portal Expedia Service Search.

Hi Contact Form.

Hi Jump Start!

Hi How Fun Box Blog Page

Hi GREEN ITERS Blog

Hi Madness!.

THEORIES ON WHY THERE ARE NO WILD COWS:

Hi Industrial Fan.