12V DC Hand Crank Generator with Light Bulb Biology_Dissection Cork-lined stainless steel safety flask

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

and standing waves visibly enough to compare amplitude

the numbered dicot leaf model on a base maps epidermal

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

12V DC Hand Crank Generator with Light Bulb Biology_Dissection Cork-lined stainless steel safety flaskHand 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.