» sGravesande Ring (0066)
Immagini
DESCRIPTION
Exhibit 66 is a version of the ring of 'sGravesande used to demonstrate thermal expansion. It consists of a horizontal ring and a metal sphere, suspended by a chain through the ring, mounted on a stable wood base. Below the sphere is a small alcohol oven. In the usual demonstration, the sphere is lifted through the ring. Then the alcohol oven is ignited to heat the sphere. After a while the sphere can no longer be lifted through the ring because it has dilated due to the increase in temperature.Dati Catalografici
| Data di costruzione: | --- |
|---|---|
| Data di carico: | 1835-05-25 |
| Nr. Inventario: | 368 (Generale dal 1874) 220 (Antico inv. Gabinetto Fis) |
| Costruttore: | Costruttore sconosciuto |
| Materiale: | legno, metallo, ottone |
| Dimensioni: | Altezza complessiva: 38 cm; Diametro della sfera: 3 cm |
| Conservazione: | ottimo |