The Pivot Interactives Iris™️ Light and Color Measuring Tools allow you to take light- and color-based quantitative measurements directly from a video. This can be used for videos both from the Pivot Interactives collection as well as instructor- and student-uploaded videos.
Please note that as of 9 May 2022, activities using the Iris™️ Light and Color Measuring Tools the will only work in Chrome, Firefox, and Microsoft Edge. They will not work in Safari.
Using the Iris™ Light and Color Measuring Tools
The Iris™ Light and Color Measuring Tools allows you to measure quantities such as transmittance of light and temperature directly from a video. For videos with Iris™ enabled:
Click the tools icon in the top-right corner of the video.
Click the Iris™ icon.
Click and drag the Iris™ to select an area to measure.
When measuring transmittance, the measurement is shown in the box labeled Transmittance.
Different color LED's have been placed behind a sample of distilled water. The transmittance through the water of each light can be measured using the Iris™ Transmittance Tool.
When measuring temperature, the measurement is shown in the box labeled Temperature.
A bunsen burner was used to heat an aluminum rod. The Iris™ Temperature Tool can be used to measure the temperature at different points along the rod as it's being heated up.