Share to: It is our eyes that are capable of detecting a portion of the electromagnetic (EM) spectrum called visible light, or the optical spectrum.We describe the different frequencie â¦ s by color, with red being the lowest of the frequencies we can see.t is our eyes that are capable of detecting a portion of the electromagnetic (EM) spectrum called visible light, or the optical spectrum.
Young dogs can react unpredictably to electric dog fences, so understanding a puppy's development is essential to deciding when to start training the animal with the fence and collar. Generally, puppies should not be introduced to electric dog fences until they're at least four or five months old.
Our Puppy Pre-School program is tailored for pups 8 - 16 weeks old; after they have had their first vaccination and can safely attend classes with other pups and people. Classes are held in a safe, comfortable and controlled environment, right in store.Using positive reinforcement techniques, PETstock's certified Puppy Pre-School Trainers teach new pet-parents the knowledge and skills needed to have a happy and healthy relationship with their new family member.lasses are held in a safe, comfortable and controlled environment, right in store. Using positive reinforcement techniques, PETstock's certified Puppy Pre-School Trainers teach new pet-parents the knowledge and skills needed to have a happy and healthy relationship with their new family member.