Eureka/Constantan Bare Wire, Model A Prong_4 Larger 100 x 12 x

Larger 100 x 12 x 15mm Alnico horseshoe steps the pole-gap geometry up from the 75mm model

a 45mm hollow equilateral acrylic prism holds varied liquids for refraction-index-by-medium investigations

supplied with heavy sliders whose fine index marks support precise lens and mirror positioning

Polished beech wood test tube rack with twelve vertical holes sized for tubes up to 28 mm diameter

carrying a removable 3-6V 5W heating spring for electrical-method specific-heat investigations

Eureka/Constantan Bare Wire, Model A Prong_4 Larger 100 x 12 xSixteen SWG bare constantan wire on a 125g reel a copper nickel alloy with a low temperature coefficient that holds resistance steady across a wide temperature range.