Used by Charlie Duke for non-linear least-squares curve fitting during the 1960's. Fortran Program used at ISU computer.

Type 304A

Type PM12a6

Located on the Grinnell College campus and constructed in 1885, Goodnow Hall was the first building constructed after the devasting tornado of 1882. Goodnow was built with quartzite rock, at the time a rare material.  The architect was Stephen C. Earle;  E.A. Goodnow provided the $10,000 required for the construction.   Initially designed as a library and observatory, it became the home of the physics and mathematics departments following the construction of the Carnegie library in 1904.  A wooden cornice from the original library is on display in the Physics Museum The dome on the tower of Goodnow housed the Hsieh telescope, an Alvan Clark eight-inch refracting instrument.  Two precision Seth Thomas clocks, one set on sideral time and the second on solar time, in conjunction with a Fauth transit telescope, a Fauth chronograph,  provided accurate timekeeping.  The eight-inch objective lens on display in the museum is the only remaining remnant of the telescope. The small transit hut with the slotted roof beside Goodnow contained the transit telescope with telegraph connections to the Goodnow clock room with its two precision clocks and chronograph.  All are on display in the museum.  The Warner-Swasey filar micrometer used with the Hsieh telescope is also displayed in the museum. In 1926 leakage problems forced the removal of the tower observatory dome and astronomy disappeared from Grinnell's curriculum until the 1960's.  The current Grant O. Gale observatory with its 24-inch telescope was dedicated in 1984. After the physics department moved to the new Science Building, Goodhow housed the psychology department from 1954 until 1988.  Following a major restoration project in xxx which included replacing the limestone belts on the tower, the anthropology department moved to Goodnow.  In 2019 after the anthropology department moved to the new Humanities and Social Sciences Center, Goodnow awaits its next occupant.

The A95 compact digital camera with 5 megapixels and made in China was first marketed in 2004 by Canon Inc. The camera has 3x(38-114mm equiv.) F2.8-F4.9 zoom lens.

This model, manufactured between 1915 and 1926, has a fixed-focus f/7.7 lens. The front of the camera expands out to take pictures. The version sold without the "special" branding was advertised as the "Soldier's camera" during World War 1, with a flap that can be lifted up on the back of the camera to write a note on the backing of 127mm film. A small stylus is included to do this.

Also known as the Minolta AF-Tele Super in Europe or the Mac-Tele in Japan, the Freedom Tele is a dual focal-length autofocusing 35mm camera. The two lenses are 38mm f/2.8 and 80mm f/5.6. This line launched in 1988, a Leica model based off of it launched a year later. Made in Malaysia

This is a 35mm point and shoot camera, with a focal length of 38-80mm and a maximum aperature of f/4