If you coil the wire around and around, it will make the magnetic force stronger, but it will still be pretty weak. ... The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.
 
        
             
        
        
        
They erupt after a long period of time.
        
             
        
        
        
What is the word that describes the path of the sun, moon and zodiac as they "move" across the sky? Ecliptic is the answer. 
        
                    
             
        
        
        
I think its because vaccines are just to help your body learn how to fight off the virus, it’s not to actually give you the virus. Hope this helped!