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.
placental bag.] The newborn is well-developed with eyes open. Within two weeks the baby will begin eating vegetation. In. the wild, porcupines live as long as 10 years while captive porcupines have lived as long as 20 years. Due to their protective quills, porcupines have few predators. Porcupines do not throw their quills, although the quills of a. frightened porcupine are more easily detached.