Caption: Experiment showing the weight of air. An airtight vessel filled with air at normal pressure is on an electronic scale, which shows the equipment weighs 411.86 grams. Air is then pumped out of the vessel, as shown by the pressure gauge dropping to 325 hectopascals, around a third of its normal value (1013.25 hPa). The scale is then seen to read 410.89 grams, meaning nearly a gram of air has been removed. When the valve is opened air rushes back into the vessel, and the scale shows the weight increasing back to its initial value.

Release details: Model release not required. Property release not required.

Keywords: air, airtight, atmospheric pressure, changing, demonstration, education, educational, electronic scales, evacuating, evacuation, experiment, gas, gauge, mass, physical, physics, pressure, pump, pumping, reading, scale, school, science, scientific, vacuum, weighing, weight

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.

Weighing air

K003/0106 Rights Managed

Downloadable master

Duration: 00:00:37

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 1.1G


Capture format: XDCAM EX

Codec: Photo - JPEG

Please contact Science Photo Library if you require the original, or other formats.


Save watermarked comp

Request un-watermarked file

Price clip Pricing

Please login to use the price calculator