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.
When to Start Weaning. Start introducing puppies to puppy food at the age of 3.5 weeks. This allows you to gradually transition them from their mother's milk to solid puppy food. By the time they are independent at 8 weeks old, they should be eating solid food.hen to Start Weaning. Start introducing puppies to puppy food at the age of 3.5 weeks. This allows you to gradually transition them from their mother's milk to solid puppy food. By the time they are independent at 8 weeks old, they should be eating solid food.