


[Found here, here, and undoctored leaping penguins here.]

Four small nightmares. An abandoned stage set creates a terrifying forest setting for these visitors to a lonely theme park scene now closed. What horrible event was portrayed inside the forest with a bridge to nowhere but darker? – Jim Linderman / Dull Tool Dim Bulb
[Right click to enlarge; full size at link. Photos and description found here.]

[Found here.]

The HP 9820A (AKA the 9800 series model 20) was HP’s third calculator. It made use of many of the same parts used to make the HP 9810. In fact, a number of PC boards were interchangeable between the two. There was, however, a major distinction: The HP 9820A was HP’s first algebraic calculator. It was a fully algebraic calculator with parentheses, precedence and even implied multiplication. (e.g., 2AB meant 2 times A times B.) The calculator displayed the expression as entered on a single line alphanumeric LED display (which showed 16 characters and scrolled as needed) and evaluated it when the EXECUTE key was pressed.
The HP 9820A was originally priced around $5,000 to $6,000 circa 1972, approximately $44K in 2026 USD.
[Unaltered image found here. Fake ad copy courtesy of Grok.]

From Levitation series by Japanese photographer Natsumi Hayashi.
[Found here, via here.]