Articles tagged with Velocimetry
Purdue researchers have developed a new method for measuring the velocity of moving objects using lasers and semiconductors. By using an electronic strobe to make light appear to stand still, they can capture cleaner signals from moving objects, resulting in more accurate measurements of speed.
Researchers at the Weizmann Institute of Science have confirmed the existence of fractional electric charges, one-third that of an electron, in a groundbreaking experiment. The team measured the charge using sophisticated equipment to eliminate noise and detected ripples proportional to the unit of electric charge.
The USGS is tracking the northward movement of the Red River floodwaters, taking measurements to improve forecasts for evacuations upstream. Crucial to understanding the impact on upstream communities will be how much water is contributed by the Pembina River.
The prototype non-Doppler optical sensor registers faint wind movements that anemometers cannot measure, correlating with those of anemometers in test results. It offers a low-cost alternative to complex arrays of traditional sensors and can measure both horizontal and vertical wind speeds.
Astronomers at Johns Hopkins University have developed a new method called photometric-redshift astronomy, which allows for rapid distance measurements to distant galaxies. This technique resolves a long-standing dilemma in cosmology research by enabling the study of galaxy evolution and dark matter.