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.
Put in grounding posts. To install electric fencing, you need at least 1 grounding post that is 6 feet (182.88 cm) or longer. Place 1 grounding rod near the charger and use a post-hole digger/slammer to set the grounding post.Leave at least 2 inches (5.08 cm) of the post above the ground.. Choose your wire. You can install electric fencing with electric fence tape or a variety of straight wire of various thicknesses. Tape is the easiest to see, and less dangerous than straight wire.