If you are a small business owner, chances are you either have or need a federal tax ID number, also called an EIN (Employer Identification Number). This is a unique identifier you'll need to ...

Antony tries to find out what became of his family's business empire and properties. To help him he hires a brilliant young researcher, Yana Slovona. Within weeks, she has made some startling ...

How many coins can touch one coin, or how many basketballs can "kiss" one basketball at the same time? This seemingly playful question lies at the heart of the famous kissing number problem, a ...

The samples failed - What number do you want me try again and do tutorials (part 3) Before recording a video tutorial, I had to try that pattern several times until it was satisfied. Apart from ...