Why do you need to knock on the mirror first when staying in a hotel?

Most people choose to stay in hotels when traveling, which is convenient and comfortable, and can bring great benefits to their travels. But, have you ever noticed the mirrors in the hotel? There may be something fishy in it.

There are generally more mirrors in hotels, usually in bathrooms and rooms. Firstly, it is for the beauty of the hotel, which will make it look more spacious and brighter, but also for the convenience of tourists. It is more convenient to have a mirror when washing and putting on makeup. But there are also some perverts who will make a fuss about the mirror. If you're not careful, you may lose everything.

Some people say that when staying in a hotel, you should knock on the mirror before entering!

Some people will use the hotel mirror to peek. When you admire your beautiful face in front of the mirror, in fact, there is also someone admiring your beautiful face. When you see an ordinary mirror, it is actually not a mirror, but a specially processed double-sided mirror. This kind of double-sided mirror is usually used in cars. People can see clearly when sitting in the car. Outside, but people outside the car cannot see everything inside the car. When you look in this mirror, you are like a person outside the car, and the peeper is the person inside the car. You can't see anything, but the "person outside the car" has a panoramic view.

So how do we judge whether a mirror is a double-sided mirror? The first simple method is to hold your finger against the mirror and see the distance between your finger and the mirror. If there is a distance between your fingertip and the image in the mirror, it is a one-way mirror; if there is no distance between your fingertip and the image in the mirror, it is a double-sided mirror. Mirror, you may have been exposed to other people's sight.

Method for judging brightness

Double-sided mirrors use a reflective layer of about 50% to 70%, so compared with ordinary mirrors, double-sided mirrors are darker. Take out the makeup mirror you carry with you and compare them together to see if there is any big difference in brightness.

Disadvantages: This method is prone to misjudgment, and there may be color differences between mirrors.

"The enemy is light and we are dark" method

The double-sided mirror has a special feature, that is, you can see the light side from the dark side. Therefore, if you turn off the lights on your side, you will see the scene on the opposite side (provided there is a certain brightness on the opposite side).

When you go to bed at night, remember to turn off the lights in the room and close the curtains!

Let the room be dark without any light. The darker the room, the better the inspection status will be! Then turn on the camera function of your mobile phone, circle around the room, and check the blind corners of the room and the ceiling. TVs, air conditioners, etc. are places where pinhole cameras may be installed. If there is a pinhole camera, you will see a red dot on the phone. The red dot is the camera.

For those who often travel or travel, it is inevitable that they will have to stay in a hotel. However, many people worry about the hygiene of hotels. In fact, as long as you prepare some "dirty" items, your Life on the road will definitely be more exciting!

You cannot use the mouthwash cup in the hotel. It is best to bring your own. With this cup set, you can ensure that your toothpaste and toothbrush are clean and hygienic. Secondly, it can also be used as a mouthwash cup. It’s really convenient to use it in a cup.

Worried about dirty hotel sheets? Then bring one yourself, a dirty sleeping bag to help you solve the embarrassment of mysophobia! The pure cotton fabric is super comfortable, and you don’t have to worry about cross-infection even if you sleep naked.