If you use Excel 40 hours a week (and those are the weeks you are on vacation), welcome to the MrExcel channel. Home to 2,400 free Excel tutorials. Bill "MrExcel" Jelen is the author of 67 books about ...

From the outside it looks like a simple shipping container. Inside, the Curiosity Cube is a high-tech lab where Boston students run experiments and talk with working scientists. On this visit, lessons ...