Caption: Galileo thermometer. This is a glass tube filled with water containing glass bulbs of varying density. A heater is used to warm the water. As the temperature of the water increases its density decreases. At any given temperature, some of the bulbs will float and others will sink, depending on their density relative to that of the water. Here the water has been warmed sufficiently for all the bulbs to sink.

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Keywords: 10 seconds or greater, buoyancy, buoyant, close up, close-up, closeup, concept, conceptual, demonstrating, demonstration, density, device, education, educational, experiment, float, floating, galileo, galileo thermometer, glass, hair dryer, hand, heat, heater heating, heating, historical, history, history of science, instrument, liquid, measure, measurement, measurements, measuring, motion, people, person, physical, physics, school science, science, science education, scientific, sink, sinking, technological, technology, temperature, thermal expansion, thermometer, thermoscope, time, warming, white background

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Galileo thermometer

K004/9619 Rights Managed

Downloadable master

Duration: 00:00:17

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 206.5M


Capture format: Canon EOS 5D Mark II

Codec: H.264

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