The meaning of the word 'visible' is 'can be seen with eyes', and that's the labelgiven to the part of the electromagnetic spectrum that can be seen with eyes.It doesn't include infrared or ultraviolet radiation, because those cannot be seen with eyes. Only the 'visible' wavelengths can.1  Comments (0). 2  Report.he meaning of the word 'visible' is 'can be seen with eyes', and that's the labelgiven to the part of the electromagnetic spectrum that can be seen with eyes.It doesn't include infrared or ultraviolet radiation, because those cannot be seen with eyes. Only the 'visible' wavelengths can. 1  Comments (0).
From two to four months of age, most pups pick up on the concept of housebreaking quite easily since it is part of their natural programming. In the early days of housebreaking you want to make sure the puppy has a place to relieve herself where she feels safe; a place that seems and smells familiar.
Visit the Pet Video Library. By Dr. Becker. In this first of a two-part series, Dr. Karen Becker discusses the four key principles for housebreaking a dog of any age. Up to 25 percent of dogs relinquished to animal shelters by their owners end up there due to housebreaking problems. The same statistic applies to dogs seen by veterinarians -- 25 percent of behavior-related visits to vets concern toileting.