I was fascinated by the idea of jet packs when I was a kid. They were sci-fi magic, and the idea that you could strap into an oversized backpack wrapped in tinfoil and fly around was very enticing.

A catalyst is a substance that speeds up a chemical reaction. The catalyst is not used up or chemically changed during the reaction. Enzymes are catalysts that work inside the cells of living ...

Atmospheric CO 2 levels have increased as a result of anthropogenic activities. This rise has contributed to global warming, ocean acidification, and the degradation of ecosystems. Addressing this ...