In a pressure dependent system, two zones. on the same system are effected by the control of one. another. Example â. Room A and Room B are two conference rooms. Both. are supplied by different VAV terminal units from the. same central air supply.
The color of a star depends on its surface temperature. Our Sunâs surface temperature is about 6,000 Kelvin. Although it looks yellow from here on Earth, the light of the Sun would actually look very white from space. This white light coming off of the Sun is because its temperature is 6,000 Kelvin.
This is also the color you see with red giant stars; solar-mass stars that ran out of hydrogen fuel and bloated up many times their original size. The luminosity of the star is spread out over the much larger surface area of the red giant and so theyâre cooler, On the opposite side of the spectrum are blue stars.