Learn about the differences between empathy and sympathy. This article also looks at some frequently asked questions.

Sunday is the shortest day of the year north of the equator, where the solstice marks the start of astronomical winter. It’s ...

To be eligible for JEE Advanced 2026, candidates must rank among the top 2.5 lakh students in JEE Main 2026, satisfy the age ...

To be eligible for JEE Advanced 2026, candidates must rank among the top 2.5 lakh students in JEE Main 2026, satisfy the age criteria. Additionally, candidates must have appeared for their Class 12 ...

Thermodynamic spontaneity—whether a reaction can go—can be measured by changes in either of two parameters: entropy or free energy.

A bomb calorimeter, as shown below, is a device that has an insulated container in which a sealed, oxygen-filled reaction vessel is surrounded by a known volume of water. This allows a complete ...

All chemical reactions involve an energy change. We categorise reactions by the direction of this energy change. If energy is released by a reaction, the reaction is exothermic. If energy is absorbed ...

There are many types of cameras out there, but when it comes to advanced, interchangeable lens models, nothing is more iconic than the DSLR. The name is practically synonymous with “professional ...

Scientists have discovered a new way to store mechanical energy using twisted rods in specially designed metamaterials, delivering massive energy density gains and big potential for robotics and ...

An international research team has developed mechanical metamaterials with a high elastic energy density. Highly twisted rods that deform helically provide these metamaterials with a high stiffness ...

Be it springs for absorbing energy, buffers for mechanical energy storage, or flexible structures in robotics or energy-efficient machines: Storage of mechanical energy is required for many ...