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end of the spectrum are the reds and oranges. These gradually shade into yellow, green, blue, indigo and violet. The colors have different wavelengths, frequencies, and energies. Violet has the shortest wavelength in the visible spectrum. That means it has the highest frequency and energy. Red has the longest wavelength, and lowest frequency and energy. LIGHT IN THE AIR Light travels through space in a straight line as long as nothing disturbs it. As light moves through the atmosphere, it continues to go straight until it bumps into a bit of dust or a gas molecule. Then what happens to the light depends on its wave length and the size of the thing it hits. Dust particles and water droplets are much larger than the wavelength of visible light. When light hits these large particles, it gets reflected, or bounced off, in different directions. The different colors of light are all reflected by the particle in the same way. The reflected light appears white because it still contains all of the same colors. Gas molecules are smaller than the wavelength of visible light. If light bumps into them, it acts differently. When light hits a gas molecule, some of it may get absorbed. After awhile, the molecule radiates (releases, or gives off) the light in a different direction. The color that is radiated is the same color that was absorbed. The different colors of light are affected differently. All of the co

d after Lord John Rayleigh, an English physicist, who first described it in the 1870's.) WHY IS THE SKY BLUE? The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by t

As you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white.

There are a lot of different kinds of music. Some of the most popular kinds of music today are rock, techno, hip-hop, and rap. All of those kinds of music affect you in different ways. Other kinds of music are instrumental music, opera, etc. Those kinds of music also affect you. The music that affects you the most is calm music like instrumental or fast music like rock or techno. Rock and techno make you speed up, and instrumental or calm music makes you slow down and feel more calm.

Music can also slow down and equalize brain waves. A brain has 4 kinds of waves. It has beta waves, alpha waves, theta waves, and delta waves. When we do daily activities and experience emotions that’s when we use beta waves. Calmness is when we use alpha waves ,when your sleeping you use theta waves , and lastly when you are in deep sleep or in meditation that is when delta waves are used. When your brain waves are slow that is when you are very calm. Different types of music cause different waves. If you listen to calm music then the waves will drop to delta and theta. If you listen to fast or loud music your brain waves will most likely be alpha or beta.

One unique feature of bats is their modified forelimbs, which support a wing membrane (patagium). The basic elements of the mammalian limb are present in bats, although the relative sizes of most bones and muscles differ from those of nonflying mammals. The most elongated parts of the limb are those of the hand (metacarpal bones) and fingers (phalanges). The primary functions of these bones in bats is to provide support for the patagium and control its movements.

Numerous blood vessels and nerves are present throughout the wing membrane. Bats also have five unique muscles present in the patagium, and use additional muscles in the chest and back to move the wings up and down.

The most obvious difference between bird wings and those of bats is that bird wings are made of feathers, not a skin membrane. Birds have an elongated arm, but do not have elongated fingers like bats. Additionally, the muscles used in both the upstroke and downstroke are found in the chest of birds, while the upstroke muscles are on the back in bats (Fenton, 1983).

I have always talked to my cats. I say their name when I see them, when I pet them and when I feed them. They know their names and come when called. The human voice is calming to a cat. Some cats will respond when talked to, others just look at me, but at least I have their attention. I've had other cats that would answer every question with different sounds. Since I don't speak "cat" it was impossible to understand, though. Cats can remember us by our voices as well. One of our cats named "Graceful Mowser" was sold to some friends of ours and a year and a half later had kittens. They called her "Mouse". We were invited to see the kittens, but the momma kept standing over them so we couldn't see them. I talked to her, "Hi Gracie, what beautiful babies" and she stood back as if she was proud and looked at me intently. I always called her "Gracie". When other people came to see the kittens she still tried to cover them. Later, whenever we stopped by, Gracie would come to greet us as soon as she heard my voice. Otherwise she was naturally shy and would hide whenever anyone came in the house.

51 per cent of its earnings over the past year came from digital sales.

falling CD sales and illegal downloading.

"Some fans only want to buy the physical disc, some only want to buy a ringtone and a T-shirt, others just want a concert ticket, others want to buy a digital album.