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When we look at colors, we might find that we feel a particular way. There might be some colors that we think of one thing and other colors we feel another way. When you look at colors and moods, you will find that some of them go hand in hand to those things that you might be feeling. Here are some colors that you might see on a daily basis and find how they coordinate with the emotions that you might be feeling.
The surface of lenses of costly instruments can be coated with a non-reflecting film so that the back reflection is minimized. The thickness of the film is so adjusted that, light reflected from the front and back surfaces of the film interfere destructively.
The path difference between the light reflected from the front and back surface of the film is given by
p.d. = 2 ? t cos r = 2 ? t, for normal incidence, where ? is the refractive index of the film and t is the thickness of the film. (Observe that the reflection at the back surface of the film is reflection at a rarer medium as ?(f) > ?(g) )
a) Constructive interference takes place when
2 ? t = ? (2n + 1)/ 2, ( n = 0,1,2,3, ….)
t = ? / 8 ,…. .(n = 0)
t = 500*10^-9 / 8 = 6.25*10^-8 m ( maximum reflected light intensity)
b) Destructive interference takes place when,
2 ? t = n ? , …….for n = 1 ,
t = 500*10^-9 / 4 = 12.5 * 10^-8 m ( minimum reflected light intensity)
Consider going to a Sew/Vac center and buying a used machine that had been serviced. You may get better quality at a lower price than new. Plus you know where you can get it serviced when needed.
My recommendation for a budget-priced new machine is a Kenmore from Sears, they are made by Janome at a little less than the brand name cost. Stay away from the super-cheap models at Walmart, ect. They would probably only frustrate you.
July 20th, 2010 at 10:49 pm
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July 31st, 2010 at 12:29 pm
When we look at colors, we might find that we feel a particular way. There might be some colors that we think of one thing and other colors we feel another way. When you look at colors and moods, you will find that some of them go hand in hand to those things that you might be feeling. Here are some colors that you might see on a daily basis and find how they coordinate with the emotions that you might be feeling.
August 4th, 2010 at 2:37 pm
That'd be the minimum amount of padding. Is there an MLB rule dictating the maximum thickness of the pads or material used?
August 8th, 2010 at 6:07 am
- i absolutely love this video! " BIEBER DONT TOUCH YOUR STITCHES!"
hahahahaha
August 13th, 2010 at 11:12 pm
The surface of lenses of costly instruments can be coated with a non-reflecting film so that the back reflection is minimized. The thickness of the film is so adjusted that, light reflected from the front and back surfaces of the film interfere destructively.
The path difference between the light reflected from the front and back surface of the film is given by
p.d. = 2 ? t cos r = 2 ? t, for normal incidence, where ? is the refractive index of the film and t is the thickness of the film. (Observe that the reflection at the back surface of the film is reflection at a rarer medium as ?(f) > ?(g) )
a) Constructive interference takes place when
2 ? t = ? (2n + 1)/ 2, ( n = 0,1,2,3, ….)
t = ? / 8 ,…. .(n = 0)
t = 500*10^-9 / 8 = 6.25*10^-8 m ( maximum reflected light intensity)
b) Destructive interference takes place when,
2 ? t = n ? , …….for n = 1 ,
t = 500*10^-9 / 4 = 12.5 * 10^-8 m ( minimum reflected light intensity)
August 26th, 2010 at 7:39 pm
Consider going to a Sew/Vac center and buying a used machine that had been serviced. You may get better quality at a lower price than new. Plus you know where you can get it serviced when needed.
My recommendation for a budget-priced new machine is a Kenmore from Sears, they are made by Janome at a little less than the brand name cost. Stay away from the super-cheap models at Walmart, ect. They would probably only frustrate you.
September 1st, 2010 at 4:13 am
Forums: Chat Thread LV: Snitches Get Stitches, Wake4me #wakeforest