Electronic speed control. An electronic speed control or ESC is an electronic circuit with the purpose to vary an electric motor's speed, its direction and possibly also to act as a dynamic brake.
The ionosphere is the layer of the atmosphere that reflects radio waves. This effect is caused by the ionization, or electrical charging, of the gas particles present in the upper atmosphere by... The ionosphere is the layer of the atmosphere that reflects radio waves. This effect is caused by the ionization, or electrical charging, of the gas particles present in the upper atmosphere by X-rays and ultraviolet rays emitted by the sun.
Greenhouse gases absorb reflected sun energy, making the Earth's atmosphere warmer. A lot of the sunâs energy reaches the ground directly, and a portion is reflected by the ground back into space. Some gases, when present in the atmosphere, absorb that reflected energy and redirect it back to Earth as heat.