Why You Need to Turn On Red Lights in a Submarine When it comes to operating a submarine, there are many safety protocols and equipment that need to be followed for the smooth functioning of the vessel. One such important aspect is the use of red lights in specific areas. In this article, we will explore why it is crucial to turn on red lights in a submarine. Submarines are unique in their design and purpose. They operate in a completely different environment than surface vessels. Being submerged underwater, visibility is significantly reduced, making it challenging for the crew to perform various tasks. That's where red lights play a vital role. The primary reason for using red lights in a submarine is to preserve the crew's night vision. Unlike surface ships, submarines rely on artificial lighting systems due to the lack of natural light underwater. When light is suddenly introduced to a dark environment, such as a control room or sleeping quarters, it can temporarily blind the crew members. This can lead to accidents and impact their ability to carry out their duties effectively. Red lights, on the other hand, have a longer wavelength compared to other colors in the light spectrum. This longer wavelength makes them less visible to the naked eye, minimizing the impact they have on night vision. When a crew member needs to move around the submarine during nighttime operations, turning on red lights in specific areas allows them to see without compromising their night vision. It also helps in maintaining overall situational awareness within the vessel. Furthermore, red lights are also used to indicate specific zones that require caution or have specific functions. For example, in a submarine's control room, some areas might have vital equipment or operations that need extra attention. By illuminating those areas with red lights, the crew members are automatically conditioned to be alert and focused. This not only enhances their perception but also minimizes the chances of errors or accidents. Additionally, red lights play a significant role in the preservation of stealth. Submarines are designed to remain undetected underwater, and maintaining a low profile is critical. Red lights, being less visible than other colors, help to reduce the chances of detection by other vessels. This becomes especially important during nighttime operations or when the submarine needs to remain concealed in potentially sensitive areas. In emergency situations, red lights become even more crucial. Submarines are equipped with emergency backup systems and procedures to handle unforeseen circumstances. When emergencies arise, the use of red lights allows the crew to quickly identify emergency escape routes, firefighting equipment, and other vital resources. Red lights not only aid in illuminating these areas but also warn the crew of potential danger and help them make prompt decisions. In conclusion, the importance of turning on red lights in a submarine cannot be overstated. From preserving night vision and enhancing situational awareness to aiding emergency response and maintaining stealth, red lights serve multiple critical purposes. They help ensure the safety and efficiency of the crew, allowing them to carry out their duties effectively in the unique and challenging environment of a submarine.