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...
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...
Electronic industries; Intel microprocessors; Microprocessor dies; Photographs; Santa Clara (Calif.); Santa Clara County (Calif.)--History; Technology;
Enlarged color photograph of the Intel® Pentium® Pro processor. Intel® Pentium® Pro Microprocessor was designed to fuel 32-bit server and workstation applications, enabling fast computer-aided design, mechanical engineering and scientific...
Electronic industries; Intel microprocessors; Microprocessor packages; Photographs; Santa Clara (Calif.); Santa Clara County (Calif.)--History; Technology;
Enlarged color photograph of the Intel® Pentium Pro processor package. Clock speeds: 200, 180, 166, 150 MHz. Number of transistors: 5.5 million (0.35 micron), 256K L2: 15.5 million (0.6 micron), 512K L2: 31 million (0.35 micron). Bus width: 64...
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...
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...
David Brewster, creator of Brewster's Law, patented this device in 1817. It consisted of a long, hollow tube containing two glass mirrors running along the length of the tube and separated from each other at an angle of 60 degrees. Where mirrors...
The Oersted Piezometer was used to determine the coefficient of the compressibility of liquids. Gases would have been pumped into the chamber through the funnel at the top. The pressure of the gases would have been measured via the water barometer...
Messea arrived in California in 1854, founded Santa Clara College's Science Departmtent, and purchased an impressive treasury of scientific instruments and minerals.
Crova's apparatus was designed for the purpose of representing vibratory movements on the screen, with 8 disks. Turning the crank past a vertical slit caused the disks to rotate, while a beam of light from the optical system impinged on the slit...
"This unique piece of apparatus uses Lissajous figures to show that the ratio of the frequency ratios in a diatonic scale are ratios of small numbers. On the side is an air-driven vibrating reed with a small mirror attached to its free end....
In this demonstration apparatus, water pours into the top section of the central rotor, pivoting freely about its axis. The two pipes projecting from the bottomof the rotor are closed at the end but with a rearward-facing hole. The rotor spins as...
