Alloy is a type of material that is composed of a mixture of two or more elements, with at least one of them being a metal.

Cytokines are small proteins that play a crucial role in cell signaling and immune responses in the human body.

Electromagnetic radiation refers to the waves of electric and magnetic fields that propagate through space.

Graphene is a one-atom-thick layer of carbon atoms arranged in a two-dimensional lattice.

Infrared is a type of electromagnetic radiation, which lies beyond the visible spectrum of light.

A jet engine, also known as a jet propulsion system, is a type of internal combustion engine that produces thrust by ejecting a high-speed jet of exhaust gases.