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Function For precision measure of angles. |
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Description The main fixed angle measures 90°, and the vernier angle is divided into 20 parts that correspond to 19° of the main scale. The precision is a twentieth of grade. | |||
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Function For precision measure of angles. |
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Description The instrument, all in brass, is made of a pole that stands on a tripod with level screws. At half height there is a 24 cm diameter graduated circle, that rotates around the pole. A telescope that can rotate on a vertical plane is anchored to the circle. On the top of the pole we have a horizontal bar. At one end of this bar there is a 15 cm diameter circle that can rotate on a vertical plane. On the circle another telescope is anchored. At the other end of the bar, there is a balance weight. Two air-levels are placed horizontally on the bar. | |||
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Function To measure small differences in height. | |||
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Description (1) It is formed by a telescope fixed to a graduated pole that lies on a tripod with levelling screws. The telescope can rotate on a plane perpendicular to the pole and can shift vertically on the same. | |||
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Function To measure small differences in height. |
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Description From a rectangular heavy metal basis rise two brass columns with a brass square basis. A microscope is placed horizontally on each column, whose height we can change with a tangent screw. On each of the columns there is a scale that indicates the height of the microscope. | |||
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Function To measure the curvature radium of a spherical surface. |
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Description The instrument is made of brass and leans on three iron pointed ends. The screw has a 1 mm pitch. The head holds a disk divided into a hundred parts which means that the instrument measures the hundredth part of a millimetre. | |||
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Function For measuring masses. |
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Description The wooden cabinet has two frontal doors and two drawers placed on the basis. The beam, the scale-plans and the level screws are in brass. Hanging load gr. 200. Sensibility mg 0.1. | |||
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Function For measuring masses. |
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Description The beam is held by a brass column that rises from a wooden basis with drawers. Hanging load Kg. 2, sensibility mg 0.01. | |||
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Description Cylindrical weights from 1 gr. to 200 gr. | |||
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Function To study the buoyancy. |
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Description Two levelling screws are placed on a rectangular brass basis. The beam of the balance is anchored to a rack that is placed inside a hollow brass column. With the rack we can change the height of the beam. | |||
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Function For measuring the time. |
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Description Model with vertical pendulum in a wooden case. The functioning is time-clockwork. | |||
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Function To study the conservation of the angular momentum. |
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Description The apparatus is made of brass. A vertical pole fixed on a circular basis is part of the apparatus. The end of the pole is hollow in order to lay the rotating gyroscope on it. In this position the gyroscope will acquire a precession motion. | |||
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Function Studying the principle of communicating vessels. |
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Description A set of transparent tubes of different shape and with a tap comes out of a cylindrical container. The liquid is poured into a central tube. We see that it reaches the same level in every tube. | |||
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Another different stalagmometer University (2) |
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Function For measuring the surface tension of a liquid. | |||
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Description It is formed by a pipette that ends with a capillary tube. We obtain the measure comparing the number of the falling drops of the liquid under examination, and that of a liquid of reference. | |||
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Function Sucking and forcing pump. |
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Description The pump is made of brass and stands on a heavy basis. The two valves placed on the suction and compression pipe fittings have reversed functions. The capacities of the pump are limited. | |||
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Function Sucking and forcing pump. |
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Description We must create a preliminary vacuum with normal pumps. It is formed by a boiler to generate vapour currents (oil) that come out very fast through some diffusers. During its motion the vapour drags the molecules towards the efflux mouth. The steam is cooled and it condenses on the walls from which it goes back to the boiler. | |||
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Function Effects of the atmospheric pressure. |
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Description The instrument is formed by two brass hemispheres each one connected by a short cylinder to a handle. One of the cylinders is hollow and presents a connection with key to connect it to the pneumatic pump. Because of the great surface of the instrument a great vacuum is not necessary. | |||
