Harmony

- Definition: "a feeling that you are happy and your mind and emotions are well balanced" Macmillan Dictionary. This is the end result of this little miracle. I bought my first Harmony remote back in 2003 to control with one button a myriad of home entertainment devices. It brought harmony back to our household and replaced pages of instructions on how to watch programming from different sources. No more set the TV to Input 1, the receiver to audio input 2, A/V switch to position B; so on and so forth. I now have two of these babies and could not live without them. Canon 7D, 1/50 sec @ f/4.0, ISO 1600, 100mm macro.

Touch Tone

From 2010 Blog

The "Touch Tone" telephone was standardized when the dual-tone multi-frequency (DTMF) system in the new push-button telephone was introduced in the 1960s, and replaced the rotary dial. When used to dial a telephone number, pressing a single key will produce a pitch consisting of two simultaneous pure tone sinusoidal frequencies. The row in which the key appears determines the low frequency, and the column determines the high frequency - hence the name dual tone mutli-frequency. Canon 40D, 1/20 sec @ f/2.8, ISO 800, 50mm macro.

RPN

From 2010 Blog

- The ENTER key on a calculator is a clear sign that it employs the Reverse Polish notation or RPN method to evaluate mathematical expressions. My first RPN calculator was the 1978 model HP32E which I owned and used for over 20 years. My first serious programming was done on an HP41C, basically a handheld computer which was also used as the third level backup system computer for the first nine space shuttle missions. It's always fun to hand your RPN calculator to an unsuspecting victim and watch them search for the nonexistent "=" key - its a geek thing. Canon 40D, 1/500 sec @ f/2.0, 50mm macro lens.