COLLECTION<br/>Scientific Instruments Collection<br/><br/>Glass tube in the shape of a 0 with multiple connected chambers. The chambers are connected by coned shaped parts of the tube.<br/><br/>Glass
COLLECTION<br />Scientific Instruments Collection<br /><br />Black metal projection device which can be slid along a bar presumably to focus the device or allow projection of a three dimensional object.<br /><br />Metal
COLLECTION<br/>Scientific Instruments Collection<br/><br/>Large drum attached to beveled wooden base, with two needles on the top of the instrument, connected to electrical circuitry with a switch on the right-hand side of the base. <br/><br/>metal, wood
COLLECTION<br/>Scientific Instruments Collection<br/><br/>Wood tripod with adjustable legs and top. Top and bottom are stored in two places. May go with Brass Telescope (2018.22.76 UCPC)<br/><br/>metal, wood
COLLECTION<br/>Scientific Instruments Collection<br/><br/>Brass and steel, glass cutting instrument with pieces of cut glass in a glass case.<br/><br/>glass, metal, wood
COLLECTION<br/>Scientific Instruments Collection<br/>Cube made of metal with four glass sides and bottom; top is broken or missing; metal feet.<br/><br/>glass, metal
COLLECTION<br/>Scientific Instruments Collection<br/><br/>Brass stand with rotatable wheel on top. The wheel has a protrusion on top which looks like it was used to attach other devices.<br/><br/>Brass
COLLECTION<br/>Scientific Instruments Collection<br/><br/>Black converter and light case with a cone for concentration of a light beam attached to a wooden base with detachable electrical cord<br/><br/>metal, wood
COLLECTION<br/>Scientific Instruments Collection<br/><br/>Conical prism attached to a brass stand. There are bubbles in the prism<br/><br/>brass, glass
COLLECTION<br />Scientific Instruments Collection<br /><br />Two prisms which can be folded together, attached to a brass stand.<br /><br />brass, glass, metal
COLLECTION<br/>Scientific Instruments Collection<br/><br/>Two prisms mounted in a brass frame with each prism having its own thumb screw holding it in place.<br/><br/>brass, glass, metal
COLLECTION<br />Scientific Instruments Collection<br /><br />Glass tube one end terminating with two bulbs of decreasing size. (see physical file for sketch)<br /><br />glass
Scientific Instruments Collection<br />Found Instr. #7 (Previously listed as Physics Instr. #16)<br /><br />large cabinet-style vacuum air pump; upper half of cabinet has two sets of glass doors; opposite sides of cabinet are glass "windows"; circular plate that holds the bell jar is raised above the cabinet, so that it sits on the top of the cabinet
<br />Scientific Instruments Collection<br />Found Instr. #4<br /><br />invented in the early 17th century by Edmund Gunter; shape of a quarter circle with two protruding pin hole sights along one side and brass plumb-bob; used for telling time by the sun and the stars, and measuring azimuth and elevation; it could measure astronomical phenomena and calculations as well as perform surveying functions; by finding the altitude of the sun, one can determine the time of day using this instrument, but the scales apply to only one specific latitude (see remarks for more info)
Scientific Instruments Collection<br/>Found Instr. #5<br/><br/>an elegant, optical instrument used to facilitate the sketching of objects from nature, which can aid in the reproduction of any type of object onto paper; consists of a small, triangular prism attached to a telescopic stem; one end of the stem is a vice foot that allows the camera lucida to be attached to a table; *full copy of manual saved in vertical and digital folders; Does ours have the extra glass lenses in the box? Looks like its missing the prism.
Scientific Instruments Collection<br/>Found Instr. #6<br/><br/>this camera is affixed to a spectroscope which is "used to study which light waves from the spectrum are absorbed when passed through living body tissue; the camera records the wavelengths that have been absorbed by taking a spectrograph" - similar example at the Science Museum, London - see remarks v folder still at office - need to finish cataloguing
Scientific Instruments Collection<br />Found Instr. #1<br />sometimes called a "cyanopolarimeter"; consists of optical tube with glass plates at one end and prism at the other; piece of black fabric attached to one end eliminates glare; normally sits on a stand; invented by Arago to measure the intensity of the sky's blue light as well as its polarization; this polariscope is reported to be no. 296 in the 1872 Lutz catalogue and originally sold for 180 francs (see remarks for more info)
Scientific Instruments Collection<br />Found Instr. #2<br /><br />brass instrument attachement identified by Pilcher as being a compensator for polariscope; bone (or possibly ivory) scale has broken off the top of the instrument; this would have been attached to a polariscope somehow; may not go with our Arago's polariscope - may be intended to fit with a slightly more modern instrument
Scientific Instruments Collection<br />Found Instr. #3<br /><br />may go with Gurley Spectroscope in the collection (see spectroscope examples in Spectroscope Camera [Found Instruments] v file); oddly configured attachment consisting of a rectilinear, opaque glass affixed with two small screws to a triangular black instrument; thin, cylindrical metal rod affixed to center; unclear which element is the prism and which is the ground glass!
Scientific Instruments Collection<br/>Physics Instr. #45 (Devine)<br/><br/>small ammeter (black with black trim) housed in a wooden carrying case with clasp and leather carry strap; used to measure electric current in a circuit; "Current is the rate of flow of electric charge. If this electric charge flows only in one direction, then the resultant current is called Direct Current (DC). The instrument, which is used to measure the Direct Current called DC ammeter" (see remarks for more info)
Scientific Instruments Collection<br/>Physics Instr. #46 (Devine)<br/><br/>small ammeter (black with silver trim) housed in a wooden carrying case with clasp; used to measure electric current in a circuit; "Current is the rate of flow of electric charge. If this electric charge flows only in one direction, then the resultant current is called Direct Current (DC). The instrument, which is used to measure the Direct Current called DC ammeter" (see remarks for more info)
