| Demonstrates: Glass transmits visible and near IR wavelengths but is opaque to longer wavelengths. |
| Description: An heat lamp is placed near a thermometer and temperature is marked. Thermometer is then placed in a covered glass beaker and higher temperature is noted.
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| Instructions: Place heat lamp 30 cm from themometer, take temperature reading after allowing time (5 min) for air stabilization, then place thermometer inside beaker and take temperature reading again after 10 minutes.
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| Items Used: Projector, thermometer, beaker with rubber stopper, black paper, heat lamp, mirrors for projection of thermometer markings. Notes: Add black paper for better heat absorption. Math Description: None.
Size: 22 Condition: Good. Hazard: Thermometer can be broken if not placed in to beaker system
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| Schematic:
4B 20.40 Tech Specs:
None. Web Links: |
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| History: |
