When you type a word or a phrase in a search engine, the output that will be shown to you a list of websites or documents related to your search word or phrase. For example, typing “speed of light” in the Google search engine would return the list similar in the image shown below.
Wolfram Alpha, on the other hand, returns answers to search phrases or questions instead of a list of related documents or web pages. Searching “speed of light” in the Wolfram Alpha search engine returns the figure below. » Read more