General Science & Ability

Dmitri Mendeleev

Because molecules at the surface with sufficient kinetic energy can escape into the gas phase

0 °C

100 °C

Light Amplification by Stimulated Emission of Radiation

X-rays

High-frequency sound waves above the normal range of human hearing

Hertz (Hz)

The number of wave cycles or oscillations occurring per unit time

Wavelength

Electric motor

Electric generator