His scientific interests were in analytical chemistry, especially optical measurements.
Based on optical measurements, the object is between 300 and 900 meters in diameter.
The integrating sphere is used in optical measurements.
Integrating spheres are used for a variety of optical, photometric or radiometric measurements.
This has been enabled by the avoidance of modified nucleotides and optical measurements.
Earlier optical measurements had given an estimated diameter of about 330 50 meters.
Under average conditions, optical measurements are consistent with a spherical Earth approximately 15% less curved than its true diameter.
Plant canopy gap size analysis theory for improving optical measurements of leaf area index.
They would be flying blind, trying to pinpoint their position with nothing more than optical measurements of distant planets to go by.
They will study the properties of xenon at its critical point, taking subtle optical measurements in the region surrounding it.