For showing that liquid levels are independent of shapes of the containing vessel and liquid will rise to the same level in the vessel, regardless of its shape. Consists of a reservoir and three tubes of borosilicate glass of same internal diameter but different shapes. Mounted on a stand.

For determining the volume of an irregularly shaped body when used in conjunction with a catch bucket. Suitable for density cylinders, sinkers and Archimedes principle devices. Made of galvanised steel sheet. The spout is properly angled to accurately measure displaced liquid. Hammer tone finished.

To demonstrate that a body submerged in water loses weight equal to the volume of water it displaces. Consists of two brass pieces of equal volume. A solid cylinder with a suspension hook at one end and a close fitting hollow bucket with a suspension loop at one end and a hook (handle) at the other end. Available in two different sizes. Small size with overall extended length of 72mm and large size with overall length of about 160mm.

The cylinder measures 75mm long x 25mm diameter with a suspension hook.

Set of four cylinders of (d x h), 50mm x 13mm, one each of aluminum, brass, copper, and steel. Packed in a cardboard box.

Set of six cylinders of aluminum, brass, copper, iron, lead and zinc. Packed in a cardboard box.

To prove the inverse relationship between density and length of cylinders of equal mass and diameter. This set consists of one each of machine turned cylinders of diameter 15mm, of equal masses, approx. 100g, of metals aluminum, lead, copper, brass, steel and zinc having the same diameter. Packed in a cardboard box. Note: Similar density cylinders made of materials like nylon, polyvinyl chloride & polyethylene can also be supplied.

For clamping on bench tops or boards. Aluminum pulley, diameter 50mm with V-groove, is mounted on a frictionless cone bearing and fitted on a frame with clamp for fixing to any surface upto 25mm thick with a thumbscrew. Enamelled finish.

Made from hexagonal steel rod by carefully machine turning to a sharpened point. Dimensions are approx. (l x d), 85 x 20mm (3 1/3 x 25/32in) and weight approx. 140g (5oz). Provided with a screwed end cap with a hole to receive a cord.

For suspending spring balances, cords, pendulums and other apparatus from support rods or cross members. These metal collars are fitted with thumbscrews.

For demonstration of Hookes Law and use with Hookes Law Apparatus. Closely wound springs of diameter 6mm with loops at both ends. Made of 26SWG wire. Average extension for a 250g load are indicated below. Springs with specific enlongations can also be supplied.

For general science and physics laboratory work. All are made of stove enamelled cast iron masses, except the 10g and 20g masses, which are made of polished brass. Packed in a cardboard box. Set of 9 masses: one each of 10g, 50g, 100g, 500g and 1000g and two each of 20g and 200g.

For demonstrating Bernoullis principle that any restriction in fluid flow results in increased speed and decreased pressure. Comprised of borosilicate glass tube 18cm (7in) long and 18mm ( 3/4in) in diameter with a constriction in the centre and three vertical openings in different sections. Includes three glass manometer tubes and rubber connecting tubes for measuring pressure at three locations. Ends are flared. Note: Venturi tubes of other dimensions and specific wall thickness can be supplied.

Demonstrates that liquid pressure is transmitted equally in all directions. Consists of a borosilicate glass bulb, of 50mm diameter with holes, fitted with a piston for compressing liquids. Total height about 250mm.

For general science and physics laboratory work. All are made of stove enamelled cast iron masses, except the 10g and 20g masses, which are made of polished brass. Packed in a cardboard box. Set of 7 masses: one each of 10g, 20g, 50g, 100g, 200g, 500g and 1000g.

For general science and physics laboratory work. All are made of stove enamelled cast iron masses, except the 10g and 20g masses, which are made of polished brass. Packed in a cardboard box. Set of 5 masses: one each of 50g, 100g, 200g, 500g and 1000g.

This Jennings pocket scale has all the features and a great, user friendly design.

For demonstrating that capillary rise is dependent upon the inner diameter of a tube. Proves that the molecules of a liquid are more attracted to glass than to other liquid molecules. Consists of four glass capillary tubes of different inner diameters, with a large tube serving as the reservoir. Mounted on a stand. Height of the tubes is about 15cm.

Dual scale spring scales to measure force (Newton) and mass (grams). Clear acrylic body. Easy zero adjustment and color coded.

For measurement of small outside diameter, thickness, etc. Ideal for engineering and technical schools to teach the working of this instrument. Consists of a frame of solid brass body with a chrome satin finish and a hardened steel screw. Provided with a ratchet and a locknut for accurate readings. Zero adjustment is possible. Pitch of the screw is 0.5mm and the least count is 0.01mm. Micrometers with English scale has pitch of 0.05in and the least count of 0.001in. Packed in a plastic case.

For inside, outside, step and depth measurement. Has metric scale to 15cm in 1mm steps and the 10 part vernier reads to 0.1mm least count. English scale is graduated to 6in in 1/16in divisions and the 8 part vernier reads to 1/128in least count. Verniers are adjustable and can be trued, if desired. Automatic cam locking device allows fine adjustment along the main scale. Made of plated steel and packed in a velvet lined case.

For inside and outside measurements in metric or English units. Ideal for learning precision measurement techniques by using the vernier principle. Has a metric scale up to 12.5cm in 1mm steps and the 10 part vernier reads to 0.1mm. English scale is graduated to 5in in 1/16in divisions and the 8 part vernier reads to 1/128in. Features a locking pin to secure readings and knurled thumbwheel permits fast, easy measuring. Beveled cross horns are useful for internal measurements. Made of plated steel and packed in a plastic case.

Made of plated brass.

For slotted masses on rack and 50g hanger. Made of brass with standard slots as supplied on racks.

Made of stove enamelled cast iron masses, except the 10g and 20g masses, which are made of polished brass. Sold separately.

For proving Hookes Law of Elasticity, i.e. that elongation of an object is directly proportional to the load applied and demonstrating the phenomenon of simple harmonic motion of a vibrating weight, potential energy etc. Consists of an adjustable mirrored scale 15cm long, graduated in millimeters, mounted on a support rod 30cm long fitted on a base. A hook attached to the rod supports a spring and indicator. Provided with a 50g brass hanger. Required slotted weights can be ordered separately.

Cube, ball and cylinder made of clear acrylic.

Part numbers: 3515-00, 3516-00, 3517-00

These scales have a strong aerospace aluminum frame and body that is more durable and accurate than plastic competitors. Simply clip your item with the integrated clip and hold the LAB scale in the air for an accurate weight.

This 3 Beam Balance is a classic triple beam with a capacity of 2610 grams and readability of 0.1 grams.  It comes complete with upgrade attachment weights.  It costs 35% less then the competition AND this triple beam balance comes complete with the upgraded attachment weights for free (Ohaus charges $30 extra for them).

This is a dual unit spring scale that can measure weight in grams and force in Newtons. This scale comes in six different sizes as described in the table below.

Digital stop watch with the following features: 1/100th sec stop watch; Split / lap time; Normal time; Hours, minutes and seconds; Day, date and month alarm. Battery operated.

Dial is divided into 60 seconds with 1/5 second graduations. Has 0 to 60 minute registry. Easy to read numerals. Housed in a plated metal case with a glass covered dial. Mechanical 15 jewel lever movement. Can be started, stopped and restarted by depressing the crown. A second side button resets the hand to zero. Rewinding is done by anti-clockwise crown movement every eight hours. Supplied in a high impact plastic case. No batteries required.

Dial is divided into 30 seconds with 1/10 second graduations. Has 0 to 15 minute registry. Easy to read numerals. Housed in a plated metal case a with glass covered dial. Mechanical 15 jewel lever movement. Start, stop, and reset operations are accomplished by a single button by successive depressions. Rewinding is done using anti-clockwise crown movement every eight hours. Supplied in a high impact plastic case. No batteries required.

To show that a body launched horizontally will fall vertically at the same rate as a similar freely falling body. Consists of a push button activated spring-loaded launcher with holes for two steel balls 19mm diameter acting as projectiles. Mounted on a wooden block (l x w x h), 180 x 60 X 30mm. Designed to project one ball forward and the other to fall freely.

For determining the mechanical advantage and demonstrating the principle of conservation of energy. Consists of four-step wooden wheel of 35, 50, 65 and 105mm diameters fitted with ball bearings, turning on a single, plated steel rod which can be clamped to a support stand using a right angle clamp. Each wheel has a flat groove to accept several turns of a cord with a small hole at each groove for holding a knotted cord. Can be fitted to a support stand with a right-angle clamp (not included). Recommended for use with nylon twine.

For clamping two apparatuses together or securing an apparatus to a table top. Also useful for setting up rod mounted pulleys. Cast iron enamelled frame. Plated screw and vise type nut.

For measuring the pressure of gases. Suitable for moderate pressures. Consists of a borosilicate glass U-tube, diameter 25mm and 50cm high, open at both ends. Has one riffled arm for easy connection to rubber tubing. Mounted on a wooden board, fixed on a wooden stand. A metric scale is fitted between the arms of the tube. It is recommended to use colored water for greater visibility in a lecture hall.

For showing that specific gravity depends on the nature of the material being tested. These cubes are carefully machined to 32mm on each side. Provided with a brass hook.

A multiple-use manometer for accurate measurement of gas pressure. Consists of a borosilicate glass manometer tube with a 50cm arm with funnel top and a 26cm arm with riffle for easy connection to rubber tubing. Mounted on a wooden board fixed over a wooden stand.

Various types:

Also called Density Bottles or R.D. Bottles. Recommended for comparison purposes. Also for experience in calibration work. Each bottle has a perforated stopper (about 1mm bore) and a ground mouth for a proper fit. Made of borosilicate glass.

For demonstrating the effect of temperature on the density of a liquid. Consists of a copper ball about 75mm diameter, properly loaded so that its density in less than that of water and it floats. When the water is heated its density reduces and the ball sinks.

For physics experiments and demonstrations such as density and volume measurements, pendulum bob, potential energy and conservation experiments, ballistics etc..

For introducing the concept that friction depends on the nature and smoothness of materials. The kit consists of three wooden blocks about (l x w), 100 x 75mm, one with a mirror surface on one side, the second with a sandpaper surface and the third with a plane surface. There is a hook on one end in each of the three blocks. Includes a mirror about (l x w), 355 x 75mm.

For determination of the coefficient of kinematic and static friction, mechanical advantage and efficiency of an inclined plane etc.. Comprised of a hardwood inclined plane (l x w), 600 x 100mm fitted with a pulley of diameter 22mm at the free end. It is hinged to a horizontal polished wooden base (l x w), 450 x 100mm, which is fitted with an aluminum arc graduated both vertically and angularly. The inclined plane can be fixed at any angle up to 45 degrees or at a suitable height with a clamping wing nut. Supplied with a cylindrical plated metal roller (weight ~ 500g, length ~ 50mm), two wooden blocks (l x w) 200 x 75mm and 100 x 75mm, a steel block (l x w) 100 x 75mm, a scale pan diameter 75mm, cord and hook.

For studying the dependence of moment of inertia on the distribution of mass, by rolling down a metal ring and wooden disk of the same mass and diameter on an inclined plane or rolling them on a level surface with the same initial impulse. Comprised of a metal ring and a wooden disk of diameter 15cm, thickness 5cm and same mass. When these are rolled down on an inclined plane on a level surface with the same initial impulse, the difference in acceleration can be studied.

For measuring inertial masses and qualitatively understanding the terms, mass and weight. This principle can be used to determine mass under weightless conditions in space flights. The apparatus consist of two aluminum trays joined together by a pair of spring steel strips attached to their sides. Trays are about 200mm apart. One of the trays (the oscillating tray) is drilled to hold three equal cylindrical masses and the other tray acting as an anchorage is clamped by a C-clamp to a bench. Supplied with three masses and a cord (does not include a C-clamp).

Made of high quality Aluminuim alloy and Stainless steel. Convenient direct beam graduation. Capacity: 311 grams Readability: 0.01 grams Beam: 200 x 100g 100 x 10g 10 x 1.0g 1 x 0.01g Platform (Dia.) 9.1cm

Can accurately weigh up to 2610g. Made of high quality Aluminuim alloy and Stainless steel. Strong durable and economical. An ideal weighing instrument in labs Capacity: 2610 grams Readability: 0.1 grams Beam: 500 x 100g 100 x 10g 10 x 0.1g Platform (Dia.) 15.2cm

For the dramatic and puzzling visualisation of the effect of change of centre of gravity of an object. Consists of a pair of wooden double ended cones, a wooden diverging bar 0 to 10cm wide, serving as an inclined plane. When the double cone is set on the bars of the inclined plane the cone appears to roll up the plane violating the law of gravity. This is possible because the axis of the cone is actually moving downward due to a widening of the track.

Set of 14 balls. Two each of: aluminum, brass, copper, iron, lead, zinc and wood. Packed in a sturdy cardboard box.