Big brother is watching you – through your printer!

Did you know that most colour laser printers and copiers imprint a special code made up of tiny yellow dots which, according to the EFF, contains information about the printer’s serial number and date/time the print was made? Well, apparently so, say the people at the EFF. See the video below explaining it in a bit more detail:

Or maybe, it’s just printer manufacturers having a laugh. What do you think?

[polldaddy poll=1033598]

X-Ray DIY with Scotch tape and a vacuum

Okay, so not everyone had a vacuum (and I’m not talking about the upright in the cupboard you use once a week to clean the carpets) available – but almost everyone has a roll of Scotch tape lying around. Apparently the effect of peeling of a piece of Scotch tape from the roll (when enclosed in a vacuum) releases enough X-rays to image a bone in your hand!

This kind of energy release — known as triboluminescence and seen in the form of light — occurs whenever a solid (often a crystal) is crushed, rubbed or scratched. It is a long-known, if somewhat mysterious, phenomenon, seen by Francis Bacon in 1605. He noticed that scratching a lump of sugar caused it to give off light.

Believe it or not – go take a look at the Nature website to read more.

Game: Fantastic Contraption

Here’s a fun little flash game that will either frustrate the crap out of you or keep you busy for hours – have fun! The idea behind the game is to get a object from one location (light blue area) to the target location (red area) with the aid of various bits and pieces that roll or pull – you can even join things up to move the object around. 

Click on the image below (on of my own contraptions) to get to the game online. Source How-To Geek