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.
Age to Start. Most puppies aren't able to control when they go until they are at least 12 weeks old. After she's about 6 weeks old, you can start taking her outside at least every hour to give her the chance to go. While this can cut down on indoor accidents, she won't be ready for true house-training until 12 weeks.ge to Start. Most puppies aren't able to control when they go until they are at least 12 weeks old. After she's about 6 weeks old, you can start taking her outside at least every hour to give her the chance to go. While this can cut down on indoor accidents, she won't be ready for true house-training until 12 weeks.