New power cables in Europe to make energy cheaper and more sustainable
EU researchers are looking to improve the electric grid to reduce energy waste, cut costs and curb emissions.
May 30, 2024
0
30
Engineering
EU researchers are looking to improve the electric grid to reduce energy waste, cut costs and curb emissions.
May 30, 2024
0
30
Engineering
Reducing carbon emissions from small-scale combustion systems, such as boilers and other industrial equipment, is a key step towards building a more sustainable, carbon-neutral future. Boilers are widely used across various ...
May 27, 2024
1
51
Energy & Green Tech
The design of battery technologies with increasingly longer lifespans could help to meet the growing needs of the electronics and automotive industry. Lithium (Li) batteries are the most widely used rechargeable batteries ...
Electronics & Semiconductors
Researchers have developed a method to make adaptive and eco-friendly sensors that can be directly and imperceptibly printed onto a wide range of biological surfaces, whether that's a finger or a flower petal.
May 24, 2024
0
133
Engineering
A research team led by Prof. Cao Xun from the Shanghai Institute of Ceramics of the Chinese Academy of Sciences, together with collaborators from Huazhong University of Science and Technology, has developed a new type of ...
May 21, 2024
0
34
Business
It sounds like a climate solution everyone should be able to support: Let's make it easier and cheaper for farmers with dwindling water supplies to convert their lands from crop production to solar energy generation, if that's ...
May 20, 2024
0
27
Energy & Green Tech
Lithium-ion batteries are integral to numerous applications, ranging from everyday electronics to electric vehicles. Despite their widespread use, these batteries pose safety risks due to the flammable liquid electrolytes ...
May 17, 2024
0
3
Energy & Green Tech
Instead of burning fossil fuels to smelt steel and cook cement, researchers in Switzerland want to use heat from the sun. The proof-of-concept study, published May 15 in the journal Device, uses synthetic quartz to trap solar ...
May 15, 2024
0
158
Electronics & Semiconductors
Semiconductors are the foundation of all modern electronics. Now, researchers at Linköping University, Sweden, have developed a new method where organic semiconductors can become more conductive with the help of air as a ...
May 15, 2024
0
32
Electronics & Semiconductors
In today's rapidly evolving technological landscape, the demand for reliable energy storage solutions has never been greater. With our reliance on electronic devices growing, especially in aviation, space exploration, and ...
In physics, temperature is a physical property of a system that underlies the common notions of hot and cold; something that feels hotter generally has the higher temperature. Temperature is one of the principal parameters of thermodynamics. If no heat flow occurs between two objects, the objects have the same temperature; otherwise heat flows from the hotter object to the colder object. This is the content of the zeroth law of thermodynamics. On the microscopic scale, temperature can be defined as the average energy in each degree of freedom in the particles in a system. Because temperature is a statistical property, a system must contain a few particles for the question as to its temperature to make any sense. For a solid, this energy is found in the vibrations of its atoms about their equilibrium positions. In an ideal monatomic gas, energy is found in the translational motions of the particles; with molecular gases, vibrational and rotational motions also provide thermodynamic degrees of freedom.
Temperature is measured with thermometers that may be calibrated to a variety of temperature scales. In most of the world (except for Belize, Myanmar, Liberia and the United States), the Celsius scale is used for most temperature measuring purposes. The entire scientific world (these countries included) measures temperature using the Celsius scale and thermodynamic temperature using the Kelvin scale, which is just the Celsius scale shifted downwards so that 0 K= −273.15 °C, or absolute zero. Many engineering fields in the U.S., notably high-tech and US federal specifications (civil and military), also use the kelvin and degrees Celsius scales. Other engineering fields in the U.S. also rely upon the Rankine scale (a shifted Fahrenheit scale) when working in thermodynamic-related disciplines such as combustion.
This text uses material from Wikipedia, licensed under CC BY-SA