It's that time.

that time.

Lock and load.

The Michael Dairy Show is on the

Michael Berry Show is on the air. Today's Michael Berry Show is sponsored by The Rotary phone. A rotary dial is part of old school

phones and telephone switchboards that uses something called pulse dialing to make a

call. Basically when you need to call someone you use the rotary dial to send the phone

number to the phone exchange. Here's how it works. The dial is set up in a circle with little

holes for each number. You stick your finger in the hole for the number you want to dial.

Then turn the dial clockwise until you hit this little stopper called a finger stop.

Once you let it go, the dial spins back to its starting position thanks to a spring inside.

While it spins back, it makes a series of clicks. These clicks are actually electrical pulses.

Depending on how far you turn the dial, the number of pulses changes. The phone

system listens to these pulses and figures out which number you dialed. The first patent

for a rotary dial was issued to one Alman Strowger on November 29th 1892.

It wasn't until 1904, though, that the version were familiar with, the ones with the holes

and the finger wheel, came into the picture. Although some independent telephone companies used the From the 1960s, the scene started to change as rotary dials were slowly replaced by the new kid on the block.

Dual-tone multi-frequency push-button dialing.

This new technology, which used a keypad of buttons instead of a dial first wild the public at the 1962 World's Fair where it was introduced as touch tone.

On a personal note, my grandma had a rotary phone hanging on her kitchen wall by the back door until she passed in 1996.

It had this 10 foot cord so that my aunts could sit outside and talk on private to their boyfriends when they was teenagers.

But in the late 80s, my grandparents got this fancy cordless phone

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