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.
1 There are about 30,000 quills on the body of a porcupine. 2  When porcupines shake their body, the quills fall. 3  These are collected and then adorned by many African tribes as ornaments. 4  They are believed to bring good-luck.nteresting And Fun Facts About Porcupine. 1  Porcupines are the third largest rodents in the world, followed by the capybara and the beaver. 2  Porcupines are native to southern Asia, North America, South America and Africa.