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.
If your puppy is older than 12 weeks when you bring him home and heâs been eliminating in a cage (and possibly eating his waste), house training may take longer.You will have to reshape the dog âs behavior -- with encouragement and reward.hen to Begin House Training Puppy. Experts recommend that you begin house training your puppy when he is between 12 weeks and 16 weeks old. At that point, he has enough control of his bladder and bowel movements to learn to hold it.