Electromagnetism is when the flow of electrons causes metallic objects to either attract or repel one another. If we had an electromagnetic dishwashing system, it would be a more effective, and fun way to wash dishes. The high powered iron could light and hold pots aloft whilst the scrubber scrubs the pot clean. It will need to be made from some sort of rubber to avoid electrocution.
Also, there are lots of websites that will paraphrase and condense for you...
Hope this helps
Answer: The answer is below.
Comparing:
Both of the themes from these excerpts are about how you can be able to learn despite differences in yourself from others.
Contrasting:
The theme of <em>The Story of My Life</em> by Helen Keller is that you are able to do anything you put your mind to, even if you are physically impaired in some way.
The main theme in the excerpt of <em>The Narrative of the Life of Frederick Douglass</em>, is that you can learn how to do things even if you are of a different ethnic background.
In other words, the main character in the story are different in different ways (one is blind, the other was of a different ethnicity)
Do you have any question? If so please make sure you explain your question, so that we could answer :)