Yoshizen's Blog

Phenomena

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In the afternoon,  I found a glowing rainbow in a corner of my room. 

Obviously it was a sun spot though, — ?     where it was reflected and

coming through ?  —– So, I came to the spot to trace back the light

and found it came through a draftsman’s plastic ruler.  

As its edge was angled, its transparent plastic worked as a good prism.

= and created good rainbow when it was hit by a sun beam.

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We are living in a world of numerous physical phenomena

— not necessary we are aware or able to notice it, let alone understand

and able to explain why.   Such as a burning fire, falling apple !, frozen 

or boiling water, or how induction cooker, microwave cooker works etc.   

Among them, a rainbow color must be the most loved by anybody.

Real Rainbow in the sky was created by the light reflected inside of the

water droplets of the mist or cloud. (half of Hi-viz bright tape works in

the same way = each minute grass beads reflect back the light —– other

half works as microscopic 90 degree roof mirror = reflect back the light  

to the same direction where it come from = unidirectional light is bright.   

       When the light travel through such as in the grass or any transparent

material, the light bend a “bit”.  How much the “bit” was depend on the

color of the light. —– Color ?

You may think the sun light is white but you are seeing the mixed light of

rainbow color.  There is NO white light in the world.  So that a white LED

is in fact a Blue LED covered with yellowish fluorescent pigments — its

different mixture makes warmer white or cool white, even pink LED.  🙂

— Any how, each colored light has different energy  (hence even outside 

of Violet = UV burns our skin) all depend on each wave length of the light.

= Red has longer wave length but Blue is short, Violet, UV is much shorter.  

And even shorter wave was used in a Microwave cooker to heat up the food !

= We may not aware why we get sun-burn or the pasta was cooked, — still

those invisible phenomena configuring the world.

Rainbow is not just here to please our eyes. —– It makes us to wonder !

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     A Japanese scientist, Prof. Kajita is going to receive this year’s Novel prize

for Physics for the discovery of  that the sub-particle  Neutrino has a mass.

—– So, what ?   I never seen even a hint of such Neutri-something — though,

it’s said to be flying around everywhere ! — The phenomenon of this particle

was captured by the thousands of photo-detectors  surrounding a pool of

50 thousand tons of pure water by detecting a trace of faint light created by 

the passing  particles.     Dear dear dear, what a work and the toil.

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2 Responses

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  1. jag said, on November 10, 2015 at 08:44

    -^-


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