Chicago Physical Therapy Equipment Rentals-Continuous Passive Motion Machine Rental-Illinois Medical Supplies For Rent. Continuous passive motion machine rentals in Chicago, IL. The CPM allows joint flexibility and helps increase the patients range of motion helping to reduce the risk of complications after surgery.
Secondary rainbows are caused by a double reflection of sunlight inside the raindrops, and are centered on the sun itself. They are about 127Â° (violet) to 130Â° (red) wide. Since this is more than 90Â°, they are seen on the same side of the sky as the primary rainbow, about 10Â° above it at apparent angles of 50â53Â°.
The rainbow only occurs when there is sun- or moonshine, and rainfall in the direction of the rainbow (the rainbow is a bow with radius 42 degrees, centered around the point opposite the sun, where the shadow of your head is). If the sun is not illuminating the raindrops, there will not be a rainbow. Also, when the sun is too high in the sky (higher than about 42 degrees altitude), the rainbow is below the horizon and you will probably not see it.