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Nuno Pereira

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In 1981, RCA first put on sale the SelectaVision VideoDisc, exactly 10 years after RCA applied for the first patents. Based on electronic capacitance technology, RCA VideoDiscs contained a groove of varying depth which was played with a stylus sensitive to the depth of the groove immediately underneath it. The system emerged as a marvel of mass-production research and development, able to play a two-hour movie on a twelve-inch, fifteen-dollar record on a $500 player. However, SelectaVision failed in the marketplace, since VCR's had dropped in price during its development phase, and the VideoDisc arrived on the market too late to compete. Manufacturing was abandoned in April 1984.

Jigsaw puzzle

A group of girls walks into a bar. One of the women tells the bartender to line up a row of drinks for all of them. The gals lift their glasses and toast: "Here's to 51 days!" and they proceed to down their drinks.

Once again, they tell the bartender to "line 'em up" and once again they toast 51 days and down their drinks.

The bartender says: "I don’t get it. Why in the world are you toasting 51 days?"

One of the girl explains: "We just finished a jigsaw puzzle. It had written on the box '2-4 years' but we finished it in only 51 days!"

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