12V DC Hand Crank Generator with Light Bulb Biology_Dissection these concavity microscope slides hold

these concavity microscope slides hold liquid samples for hanging-drop preparations and observation of specimens in suspension

and standing waves visibly enough to compare amplitude

Cork-lined stainless steel safety flask tongs lock jaws around flask necks to prevent accidental drops during transfer of hot distillation vessels between bench stations

Built on a leveled cast-iron base with a dual-angle polymer top

Built for wing-spreading during insect mounting

12V DC Hand Crank Generator with Light Bulb Biology_Dissection these concavity microscope slides holdHand cranked 12V DC generator in a clear plastic case with a front mounted lamp and binding posts, demonstrating mechanical to electrical energy conversion as the crank lights the bulb.