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عرض 301–315 من أصل 2205 نتائج
- Physics, Uncategorized
Linen Tester
These are collapsible pocket magnifiers. The optical system is a single element, glass Double Convex Lens. The housing is made of machined, black high grade plastic for a high finish look. These magnifiers fold flat to fit in your pocket. Scales are etched on the inner faces of the viewers base.
SKU: PH30205 - Physics, Uncategorized
Magdeburg Pressure Disks
The set consists of two plastic, 10cm-diameter hemispheres. Each half has a wooden handle firmly attached to it. One of the hemispheres has a raised edge to hold a rubber seal, while the other hemisphere has a stopcock for attaching to vacuum tubing. Join the hemispheres, hook them up to a vacuum pump, and evacuate the air inside the hemispheres. You will find it hard to pull them apart. Open the stopcock to let air in and the hemispheres will separate easily.
SKU: PH12184 - Chemistry
Magnetic Stirrer
With continuously variable stirring speed, ON/ OFF switch with indicator lamp and continuous speed control mounted on front panel, Complete with 2 No. Teflon coated stirrer bar, of size 9 x 25 mm & 9 x 35 mm. Speed 50-1500 rpm. Capable of stirring up to 2 liters.
SKU: CH12393
