This method has been refined over the years, and NIST reports that they can now calibrate transfer standards with an uncertainty of 0.67% [3][8] for 100 W measurements below 1 GHz. This uncertainty ...

Students will use a calorimeter to measure the heat energy released by the combustion of various fuels. Students will calculate and compare the fuel values associated with various types of fuel.

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Users can use simple equipment to measure enthalpy, a term often associated with physicists but significantly relevant to daily life. Heat transfer plays a pivotal role in all these processes, and ...