Thermodynamics is a branch of natural science concerned with heat and its relation to energy and work. It defines macroscopic variables (such as temperature, internal energy, entropy, and pressure) that characterize materials and radiation, and explains how they are related and by what laws they change with time. Thermodynamics describes the average behavior of very large numbers of microscopic constituents, and its laws can be derived from statistical mechanics.
Well, the year really kicked off in style. This research is really next level physics, and in order to understand it (even slightly), we’re going to delve into some serious physics. Dancing around absolute zero Over the years, physicists have made significant progress in cooling objects closer to absolute zero (0 Kelvin, the temperature at [...]
We often like to think us humans have achieved a remarkable standard of efficiency and development – but a look at the animal life around us is often enough to humble us. Replicating bacteria and physics The common gut bacteria, Escherichia coli (E. coli, in short) typically takes about 20 minutes to duplicate itself in [...]
Researchers at North Carolina State University have developed a new technique of cooling electronic devices which they claim and prove through their findings that it can lead to an increase of performance by improving the rate of heat exchange, while also lowering the cost of manufacturing. The scientists’ findings might lead to a new generation [...]
A group of researchers at MIT have successfully managed to create a light emitting diode (LED) that has an electrical efficiency greater than 100%. This might sound preposterous, and against everything you learned in physics, however the system is still governed by fundamental laws of thermodynamics. This extraordinary power conversion efficiency was obtained by a [...]
Since the start of the year, I’ve received quite a few questions regarding absolute temperatures – highest and lowest, so I decided to start a brief discussion around the two values, in which I will give the basic facts about them, so feel free to step in and add more info or questions. Absolute zero [...]