Feb. 12, 2025 — Researchers developed a method to recycle all parts of a solar cell repeatedly without environmentally hazardous solvents. The recycled solar cell has the same efficiency as the ...

4 min read Geothermal energy has been used for thousands of years in some countries for cooking and heating. It is simply power derived from the Earth’s internal heat. This thermal energy is ...

Cells manage a wide range of functions in their tiny package — growing, moving, housekeeping, and so on — and most of those functions require energy. But how do cells get this energy in the ...

What are the effects of fusion on the environment? Fusion is among the most environmentally friendly sources of energy. There are no CO 2 or other harmful atmospheric emissions from the fusion process ...

such tailor-made defects enable the catalyst to bind exclusively to Li atoms in Li 2 S reactant and elongate the Li-S bond, thus decreasing the reaction energy barrier during charging and finally ...

A reaction profile includes the activation energy, which is the minimum energy needed by particles when they collide for a reaction to occur. The activation energy is shown as a 'hump' in the line ...

In 1932, physicists glimpsed antimatter for the first time — a strange mirror image of regular matter with mind-bending potential. Nearly a century later, this ghostly substance could someday fuel a ...

Enzymes lower the activation energy necessary to transform a reactant into a product. On the left is a reaction that is not catalyzed by an enzyme (red), and on the right is one that is (green).

If a reaction is reversed then the sign of the enthalpy change must also be reversed. Changing the physical state of any reactant (or product) will involve an enthalpy change.