For the demonstration of optical activity, determination of specific rotation, and for determining concentration for a known specific rotation. Demonstration instrument for use on a overhead projector in front of a larger audience. A yellow filter (for more precise measurement accuracy) and a polarizer are embedded in a black plastic base plate. A cell containing a solution of the substance to be investigated with 50 mm and 100 mm markings is inserted into the holder. The analyzer is situated above this set-up in a holder with rotary handle and pointer. By turning the analyzer the rotation angle can be read off an illuminated scale from +40° up to –40° with 1° scale division. Dimensions: 370 mm x 330 mm x 190 mm
![Demonstration Polarimeter, 1002906 [U14390], Polarisation](/imagelibrary/U14390/U14390_01_Demonstration-Polarimeter.jpg)
![Overhead Projector (115 V, 50/60 Hz), 1003263 [U30150-115], Overhead Projector](/thumblibrary/U30150-115/U30150-115_01_140_140_Overhead-Projector-115-V-5060-Hz.jpg)
![Magnetic field line apparatus, Two-Dimensional, 1003092 [U19560], Magnetic Fields](/thumblibrary/U19560/U19560_01_140_140_Magnetic-field-line-apparatus-Two-Dimensional.jpg)
![Helical Spring 16.0 N/m, 1002702 [U11025], Coil Springs](/thumblibrary/U11025/U11025_01_140_140_Helical-Spring-160-Nm.jpg)
![Set of 6 Steel Balls -
for elastic and inelastic collision experiments, 1002939 [U15014], Linear Motion](/thumblibrary/U15014/U15014_01_140_140_Set-of-6-Steel-Balls-for-elastic-and-inelastic-collision-experiments.jpg)
![Helical Springs 3.9 N/m, 1002945 [U15027], Coil Springs](/thumblibrary/U15027/U15027_01_140_140_Helical-Springs-39-Nm.jpg)
![Helical Springs 20 N/m, 180 mm, 1002946 [U15028], Coil Springs](/thumblibrary/U15028/U15028_01_140_140_Helical-Springs-20-Nm-180-mm.jpg)
![Optical Bench U, 1200 mm, 1003039 [U17150], Optics with an Optical Bench](/thumblibrary/U17150/U17150_01_140_140_Optical-Bench-U-1200-mm.jpg)
![Set of 10 Tracing Compasses, 1003095 [U19562], Magnetic Fields](/thumblibrary/U19562/U19562_01_140_140_Set-of-10-Tracing-Compasses.jpg)
![Precision Dynamometer 5 N, 1003106 [U20034], Dynamometers](/thumblibrary/U20034/U20034_01_140_140_Precision-Dynamometer-5-N.jpg)
![Precision Dynamometer 100 N, 1003110 [U20038], Dynamometers](/thumblibrary/U20038/U20038_01_140_140_Precision-Dynamometer-100-N.jpg)
![Magnetic Needle, 80 mm, 1000674 [U216031], Magnetic Fields](/thumblibrary/U216031/U216031_01_140_140_Magnetic-Needle-80-mm.jpg)
![Vacuum Experiment Plate, 1003166 [U21850], Vacuum](/thumblibrary/U21850/U21850_01_140_140_Vacuum-Experiment-Plate.jpg)
![Turn Table, 1003490 [U45001], Rotational Motion](/thumblibrary/U45001/U45001_01_140_140_Turn-Table.jpg)
![Helical Springs 5 N/m, 1000741 [U8401010], Coil Springs](/thumblibrary/U8401010/U8401010_01_140_140_Helical-Springs-5-Nm.jpg)
![Horn Loudspeaker, 1000811 [U8432680], Sound](/thumblibrary/U8432680/U8432680_01_140_140_Horn-Loudspeaker.jpg)
![Kundts Tube, 1000814 [U8432845], Sound](/thumblibrary/U8432845/U8432845_01_140_140_Kundts-Tube.jpg)
![Speed of Light Meter (230 V, 50/60 Hz), 1000882 [U8476460-230], Speed of Light](/thumblibrary/U8476460-230/U8476460-230_01_140_140_Speed-of-Light-Meter-230-V-5060-Hz.jpg)
![Cloud Chamber, 1000921 [U8483220], Radioactivity](/thumblibrary/U8483220/U8483220_01_140_140_Cloud-Chamber.jpg)
![Metal Ring for Thomson Coil, 1000992 [U8497470], Demountable Transformer D](/thumblibrary/U8497470/U8497470_01_140_140_Metal-Ring-for-Thomson-Coil.jpg)
![Interactive Atomic Model According to Bohr, Class-Set, 1005319 [W19901], Atomic models](/thumblibrary/W19901/W19901_01_140_140_Interactive-Atomic-Model-According-to-Bohr-Class-Set.jpg)
![Enzymes and the Process of Digestion, 1022409 [W56626], Anatomy and Physiology Experiments](/thumblibrary/W56626/W56626_01_140_140_Enzymes-and-the-Process-of-Digestion.jpg)