The numeric encoding for the first three or four bands is:

0 – black
1 – brown
2 – red
3 – orange
4 – yellow
5 – green
6 – blue
7 – violet
8 – grey
9 – white

Innumerable mnemonics have been used to help recall this sequence. Some can’t be repeated, but here are a few I found on Wikipedia:

Bad Beer Rots Out Your Guts But Vodka Goes Well – Get Some Now
Betty Brown Runs Over Your Garden But Violet Gingerly Walks
Bad Bears Raid Our Yummy Grub But Veto Grey Waffles

As a young techie, learning resistor colour codes was a big deal – a big accomplishment. Are you young whippersnappers of today following suit?

Like many engineers of a certain age I learned the resistor color code using a mnemonic device that is so politically incorrect, only Tosh might venture to utter it in public today. When teaching kids, I have to resort to the old Radio Shack standby: Big Boys Race Our Young Girls But Violet Generally Wins.

Maybe you can forget all those old memory crutches. For one thing, the world’s going surface mount and color coded resistors are becoming a thing of the past. However, if you really need to read the color code, there’s at least three apps on the Google Play Store that try to do the job. The latest one is ScanR, although there is also Resistor Scanner and Resistor Scan.

Googly Eyes Follow You Around the Room
http://hackaday.com/2015/06/04/googly-eyes-follow-you-around-the-room/

If you’re looking to build the next creepy Halloween decoration or simply thinking about trying out OpenCV for the first time, this next project will have you covered. [Glen] made a pair of giant googly eyes that follow you around the room using some servos and some very powerful software.

Tracking People with the Googly Eyes and OpenCV
http://bikerglen.com/blog/tracking-people-with-the-googly-eyes-and-opencv/