Currents may also be generated by density differences in water masses caused by temperature and salinity variations. These currents move water masses through the deep oceanâtaking nutrients, oxygen, and heat with them. Occasional events also trigger serious currents. Huge storms move water masses.
Ray-ban and most other manufacturers frames are made from Plastic compounds. Ray-ban used to make all its glasses out of 'glass'. Now it makes its sunglass products out of scratch resistent plastics. Often they will 'feel' like glass but are in fact most usually plastic production.
I disagree with Juan and agree with Footprints. The Ray-Ban lenses that come with the frames have the logo on them, but if you are adding a prescription, they are higher quality optical lenses that won't have the logo.or people who own prescription ray-ban sunglasses. I bought a pair of ray-ban prescription sunglasses. Ray-bans are known for having the name printed on one lens in the upper right-hand corner. When they gave me the glasses back, the name wasn't there.