All articles tagged with #measurement techniques
Scientists have developed precise methods to measure the weight of single cells, such as yeast and bacteria, using physics principles like Stokes' law and vibrating microchannel resonators, revealing that these tiny organisms weigh only a few picograms.
A new study reveals that early 20th-century ocean temperatures were colder than previously thought, challenging existing climate models. This discrepancy, found to be about 0.26 degrees Celsius, suggests inaccuracies in historical ocean temperature data due to changing measurement methods. The findings, however, do not alter the understanding of long-term global warming since 1850 but provide better insights into historical climate variability and improve future climate models.
Researchers at the Helmholtz-Zentrum Dresden-Rossendorf have successfully visualized a detailed three-dimensional image of turbulent temperature-driven liquid metal flow using a self-developed method called contactless inductive flow tomography (CIFT). This breakthrough could provide insights into geophysical and astrophysical flow phenomena and industrial applications, such as the casting of liquid steel. The team overcame challenges in measuring the small flow-induced magnetic fields and aims to further develop the measurement method for increased accuracy and deeper insights into turbulent liquid metal flows.