Wrapping the copper wire around an iron nail, increasing the current.   Increase the power going through the wire or have more wire wrapped around the metal object. So in â¦ the case of a nail with wire wrapped around it, the more wraps you do the stronger the electromagnet will be.
Porcupines are a type of rodent found in two main regions of the world, so scientists group them into either Old World or New World porcupines.
Porcupines can NOT throw their quills. Porcupine vision is poor, but they have an excellent sense of smell. Porcupines make shrill screeches, whines, and low grunts. Porcupines are vegetarians, and they eat a large variety of plants, shrubs and trees. Baby porcupines are called porcupettes.. Porcupines are not territorial, and their home range may be as large as 200 acres. When we are lucky enough to spot most mammals, its usually as they are running away.