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.
I bet at some point you were wondering how much gold is there in the world. I know I have. See these mind-blowing 3D visualizations of gold compared to everyday objects to get a better perception.
Geminid meteor shower is suppose to be one of the best displays space has to offer this year, so be sure not to miss it! You can also watch the live broadcast of the event on Dreevoo.