The Goniometer is an instrument for measuring the angles of crystals by observing the direction of a beam of light reflected from their face. The instrument was invented by W.H. Wollaston in 1807. Physical Description: Round brass base with black...
The Kinnersley's Thermometer was an apparatus designed to demonstrate the heating power of an electric spark by showing the expansion of air when an electric spark is passed through it. Physical Description: Glass tube with brass base and top,...
Electric discharges; Scientific apparatus and instruments
When connected to a power source, a bright electric spark would flash between the two ends of the two outer posts. The middle glass post is made of photo gray glass (yellow tinted glass), which would have glowed. This instrument is visible in early...
Santa Clara University (Calif.); Mission Santa Clara; Crosses; Dedications;
Image of base of cross erected at first site, with the following engraving: Santa Clara Mission Site No. 1, established Jauary 12, 1977. Probable location A: S 47'00 W about 1350 FT. Probable location B: S 10'15 W 3724 FT. Old Spanish Bridge N...
Electronic industries; Intel microprocessors; Microprocessor dies; Photographs; Santa Clara (Calif.); Santa Clara County (Calif.)--History; Technology;
Enlarged color photograph of the Intel® 8086 microprocessor. Chalk the 8086 design up to Intel’s competitive paranoia. ”Because of the success of Zilog’s 8-bit processor, we were sure they were cooking up some super processors for 16 bits...
Akron (Air-ship); Arbuckle, Clyde, 1903-1998; Moffett Field (Calif.); Photographs; Santa Clara County (Calif.)--History; Sunnyvale (Calif.); Technology; Transportation;
Black-and-white photograph of the Airship Akron moored at Moffett Field before departing for its home base at Lakehurst, New Jersey. To the left construction has just begun on Moffett Field's Hangar No. 1. On verso of photo: "May 14,...
Big Basin Redwoods State Park; Redwood Park; Parks; Trees; People; Fuller family; Photographs
"Father of the Forest" at Big Basin, 1913. Charles R. Fuller is seen standing near the base of this tree, he said he felt like a microbe on the end of a toothpick. The tree is 100 ft. in circumference, 22 ft. in diameter, and said to be...
Altar candlesticks; Mission Santa Clara; Religious articles; Santa Clara (Calif.); Santa Clara County (Calif.)--History;
Altar candlesticks (Mission period). Made of wood, plaster, pigment, and gilt. Both candlesticks are identical in design but x.2000.9a has more damage on the candleholder. Base is triangular with a smaller triangular piece on top. A stem widens to...
Electric discharges; X-ray tubes; Scientific apparatus and instruments
This instrument appears to be an early type of vacuum discharge tube or x-ray tube. The glass tube contains metal electrodes that have been sealed and from which the air has been removed by a vacuum system. Physical Description: Glass bulb with...
Thermodynamics--Experiments; Scientific apparatus and instruments
The brass ball will just pass through a brass ring when cold, but when the ball is heated in boiling water it expands so that it no longer passes through the ring. The ball and ring demonstration of heat expansion has been in use since the early...
This device is for measuring differences in temperature and was named for British natural philosopher John Leslie. It is considerably more sensitive than a standard thermometer. Physical Description: Wooden pedestal base, ivory-colored face,...
Galvanometer; Scientific apparatus and instruments
A galvanometer is an instrument used to measure the presence, direction, and strength of small electric currents in a conductor. A magnetic needle is deflected by the presence of an electric current in a nearby conductor. The needle turns at right...
Scientific apparatus and instruments; Anamorphosis (visual perception)--Instruments
Described as one of many "Fine Optical Toys" in James W. Queen's Catalogue of Microscopes, Accessories and Sundries, 1890, the anamorphoscope mirror rectifies distorted drawings. Physical Description: Cylindrical mirror, black wooden top...
De Forest, Lee, 1873-1961; Postcards; Radio--Receivers and reception; San Jose (Calif.); Santa Clara County (Calif.)--History; Technology;
Color postcard of Gilfilan Brothers of Los Angeles cathedral style home broadcast radio receiver. Written on back of postcard, "In the early 1920's, 'wireless' devices used by amateurs were wires and circuitry attached to a wood base, called a...
Santa Clara University (Calif.); Conservation of natural resources;
Included in the portrait are Robert Kenna, S.J., Santa Clara's President (front row, leaning on cane), and Andrew P. Hill, standing in back, far right. Big Basin Redwoods State Park is California's oldest state park.
