Lot 21
A Galileo Thermometer, In Perfect Working Condition
A Galileo thermometer (or Galilean thermometer) is a thermometer made of a sealed glass cylinder containing a clear liquid and several glass vessels of varying density. The individual floats rise or fall in proportion to their respective density and the density of the surrounding liquid as the temperature changes. It is named after Galileo Galilei because he discovered the principle on which this thermometer is based—that the density of a liquid changes in proportion to its temperature.
This piece is in working Perfectly, an excellent Christmas Gift for the History or science minded Student. It measures approx 40cm high
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| From: | To: | Increments: |
|---|---|---|
| A$0 | A$49 | A$5 |
| A$50 | A$99 | A$10 |
| A$100 | A$499 | A$20 |
| A$500 | A$999 | A$50 |
| A$1,000 | A$1,999 | A$100 |
| A$2,000 | A$9,999 | A$200 |
| A$10,000 | A$49,999 | A$500 |
| A$50,000 + | A$1,000 |