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What are escalator slots really for?

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Millions of people use escalators every day, whether in subways, shopping malls, stations, airports, business centers, etc. But only a minority knows its origin and its true functioning. Why do you think escalators have vertical grooves in the steps? Apart from the aesthetic aspect, there is a mechanical reason behind this detail. Explanations.

The little story of escalators..

The first escalator, also known as escalator or escalator, was invented by American Jesse W. Reno. It was patented on March 15, 1892 in the United States. In 1895, he created a novelty at Coney Island in New York: the s’agissait d’un trottoir rollant which transports the passengers at an angle of 25 degrees, a variant of the current “rolling tapis” that they trouve dans les malls. His ‘inclined escalator’, as he liked to call it, was first put into service at the Crystal Palace in 1898. It was a perfect alternative to traditional escalators. Its success was of great magnitude, which is why many countries in turn will develop this concept to better manage urban traffic in large commercial spaces, metro stations or airports.

An escalator is actually a network of wheels and chains that, like a treadmill, are powered by an electric motor. Specifically, it involves the provision of inclined, hinged steps that flatten and rise to move fairly rapidly up or down. As a security measure, it is also equipped with a mobile ramp where users can lean on. Finally, for ease of entry and exit, the first and last steps merge into a flat surface to align with the ground and allow people to enter or exit easily, without fear of falling. Visually speaking, the process can impress young children or dogs that are afraid to venture into it.

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But why does the escalator have grooves?

Mechanic stairs

Escalators – Source: spm

The grooves have their own history and various reasons can justify their presence in the escalators. You should know that the old models of escalators contained wooden parts with a completely flat surface. But they had major drawbacks: in addition to being slippery, they caught fire very easily. This was also the case during the deadly King’s Cross Underground fire in London on 18 November 1987. Unfortunately, an escalator caught fire due to a small match slipping between the gaps between the steps. From then on, the wooden steps were replaced by metal models.

For the sake of security, manufacturers have also decided to incorporate vertical slots. Its advantages are many:

  • The grooves continuously block any falling objects and collect debris to prevent a potential rupture of the metal plate.
  • The grooves also protect the soles of passengers’ shoes, preventing them from getting stuck easily.
  • In winter, when it rains, moisture builds up, increasing the risk of slipping or falling. The grooves will thus protect users by draining water and improving the grip of the shoes on the steps.

Good to know : In the case of inclined conveyor belts, for example at the airport or in the supermarket, the grooves are also designed in such a way that the rollers of luggage trolleys or shopping trolleys hook into them correctly to remain stationary.

Curiosities about escalators

Go up the escalator

Going up the escalator – Source: spm

The longest escalators in the world are in Asia. In Japan in particular, in Tokyo more precisely, the escalators in factories can reach a length of 1.5 km.

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Did you know that the world’s longest tourist escalator is located in the Enshi Grand Canyon in central China, in Hubei province? This escalator is 688 meters long and was built with durable materials. It offers a spectacular panorama of the region. Hong Kong also stands out with a grandiose escalator: listed in the Guinness Book of Records, the escalator located in the Ocean Park amusement park measures no less than 227 meters.

In general, the strangest and most curious structures are found in Asia. In fact, in Singapore, Tokyo and Hong Kong, spiral escalators have been built in shopping malls, defying designers’ imaginations.

NB : Japan also has the smallest escalator with only 5 steps to climb 83 cm. A curiosity to discover in the basement of the More’s department store in Kawasaki.

Europe can also boast of having impressive escalators. Especially in Italy, especially in Potenza: since 2010, the region has revealed the presence of 1.3 km of escalators. To the extent that the city is entirely built on levels, these developments make it much easier for the inhabitants to move around.

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What are the most dangerous dog breeds?

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Quelles races de chiens s'attaquent le plus aux humains final

Dogs are among the most beloved and beloved pets. However, there are dog breeds that are more dangerous than others. Do you know which dog breeds are more likely to attack humans? In this article we give you the important information you should know to make the right decisions for your safety and that of your loved ones when you approach certain breeds of dogs.

aggressive dog

Aggressive dog – Source: spm

Why can some dogs be considered evil?

In some dogs, aggressive behavior can only occur in certain situations that stress them or in relation to factors such as breed, origin and upbringing: lack of love and affection, territorial protection, aggression, possessiveness, dominance, fear or pain. So the reasons may be different. Breed generalizations should be avoided and special attention should be paid to the individuality of each dog. Large guard dogs are very fierce because they either protect their territory or have not learned to restrain themselves.

What are the most dangerous dog breeds?

Although there is actually no breed of dog that is meant to be aggressive towards humans, some breeds are more prone to aggressive behavior than others. The most dangerous are Rottweilers, Pit Bulls, Akitas, Chow Chows, Dobermans, and German Shepherds. These dogs are very protective and can be very aggressive if their environment or owners are threatened.

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The Rottweiler: This dog is extremely fierce and truly fearsome. 2,000 years ago, Rottweilers were “in the service” of the Roman army and fought alongside legionnaires. They also act like what they were trained to do. There are extremely obedient dogs of this breed that love their owner, but if they have to defend him or his house, they will attack without hesitation.

a pitbull

A pitbull – Source: spm

The pitbull: this animal is not cruel, but it is difficult to train. Perhaps that is why it is one of the most dangerous dog breeds in the world. Very strong, with an extremely developed jaw, it can be trained to kill as in dogfights, or to protect a territory or a home. This question is often asked, does the pit bull hate children and the elderly? No, he doesn’t hate them. On the other hand, if he is trained to attack a human, he will attack anything that moves like a human. Unfortunately, when people feel attacked, they run away, and therefore, in their eyes, they become prey. Veterinarians, on the other hand, feel very relaxed, and some do not even put a muzzle on the pit bull, as long as it is well trained by its owner.

The akita: This dog can be dangerous, but it doesn’t depend on the animal. It is up to its owner to decide on the socialization tools that are instilled in it, and on its training. The American Akita is a popular breed for all dog lovers, as they tend to make their owners feel very well protected. However, no matter how you feel about this dog, that doesn’t mean you should shy away from the responsibility of caring for him and training him to stay out of harm’s way.

a chow chow

A Chow Chow – Source: spm

The Chow Chow: it is also an ancient breed originating from China. In Chinese, its name sounds like “Sunshi-quan” (“roan lion dog”). A Chinese bas-relief dating to 150 B.C. C. shows a lion chasing a dog similar to this breed. The chow-chow is a magnificent watchdog. He is a very pretty dog, but he has a serious flaw, he gets nervous too easily. It is a dog that is known to be a biter; he is the only dog ​​that, when he is really angry, bites his master. It is very difficult to train. In fact, in Stanley Coren’s ranking of the smartest dogs, the Chow chow ranks 76 out of 79 listed dog breeds.

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The Dobermann: Dobermans are affectionate animals, but they have the physical ability to be dangerous if need be (they are big, strong, and have a powerful bite). Therefore, this breed of dog is considered aggressive, although in reality they are just great loyal protectors and are usually only dangerous to those who threaten their loved ones.

A german shepherd

A German Shepherd – Source: spm

The German Shepherd: Known for its intelligence and for often being a police dog, the German shepherd is an animal that is always aware of its home and its family, of which it is very attentive. He takes care of the whole house and likes to take care of his owners. However, German Shepherds that are ferocious are only ferocious because they have been mistreated, trained by their owner to attack, or simply because they are hungry. In fact, hungry animals fight for food.

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the best dates for a successful haircut

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Calendrier lunaire des coiffures pour février 2023 - les meilleures dates pour une coupe de cheveux réussie_

Do you want to know what is the best time to do some hair changes? Would you like to adopt a new haircut or sport a new hairstyle? According to some beliefs, the lunar calendar could help you in this regard. Here’s how to let yourself be guided by the lunar calendar for February 2023 to take care of your hair and get an impeccable result! It’s your turn ! Follow the guide!

What are the best days to go through the scissors box during the month of February 2023? What days should I avoid? Do your visits to the hairdresser take your head off? Bingo! We give you all the information you need to take care of your hair… According to the lunar calendar. Don’t be afraid, trust the Moon and go for it!

The benefits of cutting hair with the moon

full moon

Full moon. source: spm

Cutting hair according to the lunar calendar is an ancient practice of cutting hair with reference to the different cycles of the Moon. Idea based on the influence of the moon on the development and growth of hair. If you paid a little attention to this belief, you would know that the lunar calendar indicates the most favorable days to make a hair change, obtaining a successful cut and healthy hair. What else can we expect?! If you’re stuck, let us help you!

Also read: These zodiac signs can strike it rich in 2023. They will have a fantastic year

What are the benefits of getting a haircut with the moon?

According to legend, lunar calendars have been used for centuries to determine the best time to get a haircut. According to the cycle of the Moon, hair would grow at different rates. Furthermore, this practice is said to offer health and beauty benefits for the hair, as well as spiritual and energetic benefits at the same time. The idea, in fact, is to make a cut according to the position of the moon. Which allows to accelerate growth, make them thicker and more voluminous. After all, if the night star is strong enough to move the oceans and has the ability to influence the tides, it’s no wonder it can have a direct impact on our hair.

What are the good times to get a haircut according to the lunar calendar for February 2023?

Now that you know the benefits of the lunar calendar for hair health, you want to optimize the growth and volume of your hair. Why not the key moments to sport a new hairstyle or get a new haircut? That being said, first of all, zoom in on the most important dates of the February 2023 lunar calendar for nickel hair all year long. Zoom in on lunar dates!

Lunar calendar for February 2023

Moon phases

Moon phases. source: spm

The dates corresponding to the different lunar phases in February 2023:

  • Full moon : February 5th
  • New Moon : February 20th
  • Crescent moon: February 1-4, February 21-28.
  • waning moon : February 6-19.

Before revealing to you the favorable periods for any hair manipulation for the month of February 2023, here are some indications on the lunar calendar of haircuts for January 2023, for people who want to make a change right now!

Lunar haircut calendar for February 2023: favorable and unfavorable days

Do you want to accelerate your hair growth or strengthen and thicken your hair? You just need to stick to the perfect dates for a successful haircut. Take out your agenda, dear readers, and make an appointment with your hairdresser!

  • When to cut to promote hair growth?

Do you want to accelerate your hair growth? Well, it’s time to go to your hairdresser while the Moon is positioned in the waxing phase, that is, in: February 1, 4, 22, 23, 24, 25, 26, 27 and 28. This period is great, especially if you want to have long hair!

  • When to cut to slow down hair growth?

If you want to slow down your hair growth. A friendly advice, cut them during the days of the waning moon, that is, the following dates: 5, 6, 7, 8, 9, 10, 13, 14, 15, 16, 17, 18 and 19 February 2023. Ideal period if you want to keep a short haircut as long as possible and space out visits to your hairdresser. This includes the Full Moon that will take place on Sunday, February 5, 2023, the opportune time to try a new drink! Smart, right?

  • When to cut to thicken and strengthen hair?

To have thick and voluminous hair, my advice to you is to cut it while the Moon enters the sign of Leo or Virgo, on the following days: February 4, 5, 6, 7, 8 and 9, 2023. To your scissors!

Also read: 3 zodiac signs will be lucky in February: they will get everything they want

Cut your hair

Cut your hair. source: spm

  • When is the best time to rest your hair?

The following days are unfavorable for any care or manipulation of the hair, you must let them rest, and this in: February 2, 3, 11, 12, 13, 20 and 21, 2023, when the night star is placed under the sign of Cancer, Scorpio or Pisces. These dates include the New Moon that will take place on Monday, February 20, 2023 and where we strongly advise against touching your beautiful mane.

Dear readers, the Moon is a fascinating star and from now on your visit to the hairdresser will no longer be random, the lunar cycles will guide you to obtain an impeccable result. If long hair is beautiful, healthy hair is even better! Control the cycle of the Moon and be aware of the beauty of the hair. Come on Zou, get started and let the Moon do the rest!

Also read: 2023 will be a real fairy tale for 4 zodiac signs: beautiful surprises are ahead

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How to heat the house with the trick of aluminum foil behind the radiator?

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L’astuce de papier aluminum001

For most people, this winter is marked by anxiety about rising electricity prices. But to reduce your heating bills, there are some interesting alternatives that can relieve you. In particular, it turns out that aluminum foil, which you use regularly in the kitchen, can serve you in unexpected ways. A simple sheet behind the radiator can prevent significant waste. We explain to you.

a radiator

A radiator – Source: spm

Why use aluminum foil behind radiators?

With rising energy prices and the high cost of living, we’re constantly looking for smart tips and tricks to save money and lower our household bills without sacrificing convenience. You are probably wondering if there is any benefit to placing a homemade radiator reflector. Well, indeed, it is a well thought out alternative. Because it prevents the heat emitted from dissipating through the walls.

Right now, anything that can make the house warmer without necessarily turning up the thermostat is welcome. And precisely, the very purpose of a radiator reflector is to reflect all the heat that is lost through the wall back into the room. Thanks to this technique, you not only maximize heating efficiency, but also avoid wasting energy. Therefore, you save a little more money!

Also read: How to warm up almost for free in winter with the trick of rice in the sock?

Foil

Aluminum foil – Source: spm

Often used for cooking in the oven or keeping food warm, aluminum foil is a particularly versatile tool with a wide variety of uses. However, few people take full advantage of it. And, that’s a shame, since it can help you solve many common household problems. Here, in this case, you can count on him to help you reduce your heating bills. By fixing an aluminum sheet behind the radiator, you will be pleasantly surprised by its effect.

Radiators are usually placed under or near windows, which means that the heat they give off quickly evaporates from the apartment. It turns out that aluminum foil can contribute to an increase in room temperature and act as a heat reflector. The trick is very simple and takes little time.

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What you will need:

  • A roll of aluminum foil
  • An unfolded cardboard box the size of the radiator.

How to proceed ?

  • Wrap the cardboard with aluminum foil so that the shiny side shows.
  • Place the object behind the radiator.

Thus, the aluminum foil will successfully reflect the heat from the radiator. In fact, the heat will be immediately pushed into the room instead of evaporating outside the window or heating up the wall unnecessarily. Thanks to this, your interior will be better heated and at the same time you will be able to reduce the amount of the bill by turning off the thermostat.

NB – If you don’t have cardboard on hand, you can simply tape the aluminum foil to the back of the radiator with masking tape like “masking tape”.

Also read: How to heat an apartment without a radiator?

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