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Optics and knowledge of thereof comes from years of study in physics. Refraction, reflection and so on is from the world of optical physics.
well it helps us so we can look at our reflection and it is also useful when you want to make something invisible by putting a laser beam and a bunch of mirrors
Flat mirrors are the commonest type, and provide a reflection of the subject. Useful for shaving in and for checking my clothes. They just reflect the light that falls on them. An interesting experiment you can do is to get a couple of flat mirrors and erect them at 90o to each other. If you look in these, you will see a reflection of you that is as other folk see you. The best version of this uses frameless mirrors.
It is basically a curve on a graph, with octave bands on the x-axis, and Sound Pressure Level on the y-axis. they are used by designers and engineers as well as acoustics engineers to determine the noise floor of a given space. In Europe we use the ISO standard of Noise Rating Curves, they give a reference point of 1KHz. which makes it make a fair bit more sense! If you Google noise rating curves a fair bit of NC stuff comes up... not very useful to me but perhaps to you it might be.
Tracers may be used by biologists studying plants, engineers surveying flaws in metal, and doctors detecting medical problems.
Reflection of a transmitted signal is the basic premise of radar and sonar.
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Fire starting, light reflection, and they are very useful for vain people. lol Reflection of light.
The lowest common multiple is useful in doing fraction addition. If you use any common multiple then you will need to do more reducing in the answers.
It's the reflection of the light off of the rods in the back of the eye. Humans have the same rods, they just do not have as many, which doesn't allow for the reflection. And due to the reflection of the light, the cat is able to see in the dark.
Refelction is the mechanism of discovering class information solely at run time. Wondering where it would be useful?
Yes.Libya does have doctors. Two friends of mine are doctors.Libya has medical doctors, and also academic doctors (PHD).To find out more about Libyan Doctors, you can visit the Libyan Doctors Society.I am not allowed to enter its website address here, so I will add it to Related Links (below) with a few other useful links.
controls for multiple variables in an experiment.
Instead of having one opinion there are multiple
yes lots scientists doctors and lots more x
Some of the most useful features of PVC vertical blinds are their extensive privacy, their solar reflection and the fact that they are a fire retardant. They also are very easy to clean.