Diffraction Grating Slides, 1000lines/mm, Highly efficient embossed Holographic Optical Elements, For the direct viewing and analysis of spectra from different gas tubes and other light sources, Use in conjunction with colored film gels, Dimension: 2x2in
Diffraction Grating Slides, 500lines/mm, Highly efficient embossed Holographic Optical Elements, For the direct viewing and analysis of spectra from different gas tubes and other light sources, Use in conjunction with colored film gels, Dimension: 2x2in
DR MED* Laparoscopic 19in Needle Holder, 19in needle holder for students working with sutures, Needle holder locks and unlocks into place to hold the suturing needle. Comprised of stainless steel
Mini Motor Mount, This Mini Motor Mount securely holds our 1.5 v motor. It has a splined hole for attaching a dowel. It can also be mounted with a no. 10 Screw
Large Needle Electroscope, 1.5lbs, 7.0x6.0x4.0 in, ideal for classroom demonstrations of electrostatic principles, A light-weight metal vane, used as a pointer in the electroscope. A transparent scale, provided to measure the angle of the deflection
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