Out of The PIT

For any prime number P, the first multiple of the prime that is not already a multiple of another prime is P^2. I am sure someone has proved this already.

I found this page on how to properly eat certain foods, and now I forgot the source. Ah well!

A pretty minor one though. Weaker than the couple that we had in the past few years.

I did find a program that would generate a list of files from a directory that I could then put into a spreadsheet. This is not perfect, but considering how often I'll be updating the file, it should be good enough. The program is called Directory List & Print .

I haven't been able to find some sort of software solution to keep track of my files. I should explain. I, like many people, keep a folder of files that contain installation programs for the various drivers, software, etc. that I use on my computer. Maintenance of this folder is manual, and considering that the file names are usually a little obscure, keeping track of what file does what requires either renaming the file, placing it in a specific subfolder, or keeping track of the description in a text file in the directory (which I do - which is a laborious manual process). I would like some sort of software that will automatically refresh the folder listing with a database of information about what each file does, and if changes have occurred since the last refresh. I am sure something like that must be around, or if not, easy enough to code?

MJNL and I went to Twilight Tea with MIBAgentQ and BL. During the meal, BL was mentioning some neat math tricks where if you take a number, switch two digits, and then take the difference between the new number and the original number, the difference is divisible by 9. I told to her how it could be explained by simple algebra, with a fairly generic argument that the operation was the same as taking the difference of a digit multiplied by two different whole powers of 10. The difference would be the original digit multiplied by a number that was always divisible by 9, since the difference between any two whole powers of 10 is always a multiple of 9. For example: 100 - 1 = 99, or 10 - 1000 = -990. I thought about it for a bit and realized that the difference of any two integers will always be divisible by 9 so long as the signs of the two numbers match (both positive or both negative) and that both numbers use the same digits (order does not matter). I think I'll post a proof

I got this video link from HKL.

AI sent me a link about a video of a cargo plane crash in Afghanistan just recently . Video was dated Feb 1st though..