It is good from time to time to clear your browsing data, that has accumulated during browsing the web. In this lesson I will show you how to clear browsing data in Google Chrome.
This is how our bellowed planet looks like on Martian twilight sky. It's the brightest point of light in the sky, and NASA's curiosity rover took a picture.
Google Spreadsheets supports cell formulas typically found in most desktop spreadsheet packages. In this lesson we will calculate the numbers of empty cells in a Spreadsheet.
Daylight saving was first introduced by European countries during World War I, with much of the U.S. joining the party in 1918. The idea was that more hours of daylight would "conserve coal for the war effort.