what does it mean when there is a red light in a window?
444485
The red light means "available". Extinguishing the light means "occupied". ... I could be way off the mark here but, expressions such as "she puts a red light in the window" and "red light district" have, throughout the 20th Century referred to prostitution. The red light means "available".
401030
On the street lights. They are photo sensors. ... These sensors then trigger the traffic lights to change from red to green. Sometimes the device is a video camera designed to take photos of red light runners and civics that attempt to fool the emergency light trigger sensor.
1428214
Electromagnetic radiation with a wavelength of 745 nm appears as red light to the human eye. The frequency of this light is _ s-1.
1401122
There are two types of warning lights – red and orange. A red warning light suggests that you should act quickly because the problem is serious, such as an overheating engine, low engine oil pressure or a braking system problem. ... If a red or orange warning light appears on your dash, don't ignore it.
718685
The special get togethers happen at night, and the red lights make it so your retinas don't react to the light in the room. Meaning, they can do their business being able to see and go back into the dark night without needing to wait for their eyes to adjust.
18925
The light that you're seeing is just the proximity sensor. You should only be able to see it in dark conditions, like at night when you're on your phone, but during the day it isn't on, unless if you're on a phone call to turn off your screen. It's just a red dot telling you it's time to get off your phone.
1073284
Red electrical wire indicates the secondary live wires in a 220-volt circuit, used in some types of switch legs and in the interconnection between smoke detectors that are hard-wired into the power system. You can connect a red wire to another red wire or to a black wire.
1210047
A red light is just the part of the visible spectrum we see as red. White light is a mix of colours that cancel out in terms of how the eye perceives it. ... With red light, colours other than red will not be seen. A green object is green under white light because it reflects green light and absorbs the rest.
643844
These are the meanings of red indicator light when it is solid: One beep = RoboVac's left/right wheel is stuck. ... Turn off RoboVac, then remove and empty the dust collector. Make sure the suction inlet is not blocked by any hair or debris.
872553
or low on power. The lighting bolt icon typically represents charging the computer when it is constantly lit. If this icon flashes, it may mean the battery is nearly exhausted or dead. Plug into the charger.
160763
Electronic Throttle Control Warning Light – This symbol appears as lightning bolt with two concave lines on either side. When lit, it means there's an issue with your Jeep's electronic throttle control system and you may experience your vehicle's performance feeling significantly under-powered.
260241
Far-red light is a range of light at the extreme red end of the visible spectrum, just before infra-red light. Usually regarded as the region between 700 and 780 nm wavelength, it is dimly visible to human eyes.
1410997
RED—A red signal light means STOP. ... FLASHING RED—A flashing red signal light means exactly the same as a stop sign: STOP! After stopping, proceed when safe and observe the right-of-way rules. YELLOW—A yellow signal light warns you that the red signal is about to appear.
1377055
If someone uses the red lights on TikTok, it usually means that they are trying to set a sexual and seductive mood. The colour red is associated with sex in many areas of life, not just on TikTok.
997028
Three flashing red lights around the Xbox 360 power button instead of the one to four green lights indicating normal operation represent an internal problem that requires service. This error was soon nicknamed the "Red Ring of Death", echoing Windows' Blue Screen of Death error.
161402
Usually, if the DRL light is on, it indicates that the computer has detected an issue. ... This light should turn off afterwards once the system verifies that everything is working as intended. Typically, a faulty bulb may be the culprit, but there are fuses and relays in the circuit that can cause similar issues.
376478
The lighting bolt icon typically represents charging the computer when it is constantly lit. If this icon flashes, it may mean the battery is nearly exhausted or dead. Plug into the charger. ... Turn on the computer. If the light then flashes, you probably have a hardware problem with the computer.