Fluid Pressure Transmissibility Apparatus on Wooden Base Subcategory_Wash Bottles Engineered with a higher spring

Engineered with a higher spring constant than a classic coiled novelty spring

Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric

Combined thermo hygrometer on an 85 mm metal dial pairing a -10 to 50°C thermometer with a 0 to 100 percent hygrometer for single-glance monitoring of room and laboratory conditions

eliminating cord-threading during setup in compound-pulley experiments

stretching to approximately 290mm under load

Fluid Pressure Transmissibility Apparatus on Wooden Base Subcategory_Wash Bottles Engineered with a higher springTwo cylinder brass fluid pressure apparatus with 19mm and 38mm leather packed pistons connected by a brass tube, showing equal pressure transmission across different piston areas.