• Bar & Gauge Apparatus

  • P378
  • In Stock
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  • £5.21excluding VAT

    £6.25 including VAT

  • For illustrating expansion by heating and contraction by cooling. Comprising a bar of iron mounted on a support rod with wooden handle, and a brass gauge with a cut-out which barely admits the bar lengthways while cold, and a hole which passes the bar endways only while cold. Heating the bar and then comparing it to the gauge provides an excellent visual demonstration of thermal expansion.

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