Caption: Galileo thermometer. This is a sealed glass tube filled with water. In the water are glass bulbs, each of slightly different density. As the temperature of the water changes its density changes. At any given temperature, some of the bulbs will float and others will sink, depending on their density relative to that of the water. The temperature is read off the tag on the lowest floating bulb.

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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, heat, historical, history, history of science, instrument, liquid, measure, measurement, measurements, measuring, motion, no one, no-one, nobody, physical, physics, school science, science, science education, scientific, technological, technology, temperature, thermal expansion, thermometer, thermoscope, time, white background

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Galileo thermometer

K004/9609 Rights Managed

Downloadable master

Duration: 00:00:11

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 190.2M


Capture format: Canon EOS 5D Mark II

Codec: H.264

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