Light, microwaves, x-rays, and TV and radio transmissions are all kinds of electromagnetic waves. Different waves are made by their wavelengths. Electric fields are created by differences in voltage, the higher the voltage, the stronger will be the resultant field.lectromagnetic fields are found everywhere in nature, but are invisible to the human eye. There are also many human-made electromagnetic fields. An example of a human-made electromagnetic wave are X-Rays. There are many other types of waves that you can see on this website.
Best Cruise Destination Worldwide for 2016: St. Petersburg, Russia. Best European River Cruise Destination for 2016: Paris, France. River cruising is becoming increasingly popular, and it's no surprise Paris takes the cake with this one.
one of the top cruise destinations in alaska is glacier bay national park which was declared a world heritage site by the united nations educational scientific and cultural organization unesco the park known for its 11 glaciers attracts 300000 visitors annually