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Signs about spiders were created based on many years of observations. Gradually, a certain connection was established between the behavior of eight-legged creatures and further events in the lives of the owners of the houses. These conclusions have been passed down from mouth to mouth since ancient times and have gradually reached the present day. And since spiders lived and live in almost every house and apartment, a lot of information has been collected.

Meeting point

Spiders can be called ubiquitous. These creatures are able to climb into the tiniest crack and penetrate any room. Thus, they are found in city apartments, and in country houses, and in office premises, and even in cars.

On a note! As for our ancestors, they considered spiders to be mystical creatures, a kind of connecting link between reality and the other world. In addition, if you look into the past, you can find many amazing healing potions, which necessarily included spiders!

In the house

First, let's find out if spiders appear in the house, is this good or bad? According to ancient belief, such a neighborhood promises wealth and prosperity. At the same time, almost all nationalities are inclined to this opinion, and their signs regarding the appearance of spiders in the house are mostly positive. Therefore, you should not be particularly frightened when you unexpectedly encounter arachnids, as they are harbingers of good events.

The sign of the appearance of eight-legged creatures in a city apartment will have the same meaning: they promise happiness and success to absolutely all its residents. It is especially good if the spider you meet turns out to be white - the sign says that such an arthropod collects into its web all the negativity that has accumulated in the house.

But there are other designations.

• If you saw a spider and got scared - it’s bad news.
• Crawling along the floor towards you - expect good changes in the financial sector.
• Moves away from you along the floor - losses await you.
• Stomps on clothes - soon you will buy an expensive new thing.
• The spider weaves a web, located in its very center - this sign promises clear and sunny weather.
• There is a web, but the owner is not in it - most likely it will rain.
• Crawling around the house in the morning is a bad sign.
• Crawling around the house after lunch is a sign of great luck.
• Ran through the house in the evening - it is possible to receive a gift.
  

  Advice! On this day, it is advisable not to make any important decisions, since the outcome of the matter will most likely not be in your favor!

• A black spider weaves a web over the bed - its owner will soon fall ill.
• If the network of such a creature is located above the bed of a married couple, then a cooling of the relationship between them or betrayal is possible.
• Sitting on the threshold - to losses.
• A spider came down from the ceiling and found itself right in front of your face - such a sign promises a quick pleasant meeting or the arrival of dear guests in your home.

In the office

If a spider somehow miraculously ended up in your workplace, then the sign will relate exclusively to the business sphere.

• Crawls nearby - expect a business letter or meeting.
• Climbing up the wall - most likely, a monetary reward awaits you, the project you have been working on for so long will still be accepted, or a distrustful client will still agree to sign a contract.
• He sank to the floor and immediately disappeared - a possible delay in wages or an unpleasant conversation with the boss.
• Unexpectedly fell on the desktop - soon you will have an enemy/envious person who will try to show you in an unfavorable light.

Recommendation! In such a situation, the sign advises not to think about the bad, but to perform your work duties more diligently. In this case, as they say, the mosquito will not undermine your nose, and your enemy will be left with nothing!

In the car

A personal car is also, in a sense, personal space, and therefore the meaning of a spider in a car will not differ much from the interpretation of its appearance, say, at home or at work.

• Crawling across a chair, on the ceiling or on the dashboard is a hint of a certain amount of money that will either become profit or, on the contrary, leave your wallet.
  

  On a note! In this case, the turn of events will determine the direction in which the spider is moving: towards you - expect profit, from you - traffic police officers will probably stop you at the next turn!

• A large spider means a large amount, a small one means an insignificant amount.
• Climbed on you - profit will be guaranteed.
• Spun a web right in the car - a very good sign. In this case, you can assume that you are under his protection.

In the bathroom

The sign regarding an encounter with a spider in the bathroom belongs to a separate category, and therefore its designation will be somewhat different from the interpretations associated with the house.

• Settled in the bathroom - stagnation awaits you, both in your personal life and in current affairs.
  
• Another sign speaks of a spider in the bathroom as a leak. This could be money, important information or missing valuables.
• Crawling towards you - expect profit.
• A sudden meeting with a spider means a quick cleansing of your spiritual and personal life.

On the street

An encounter with spiders may well happen on the street. What does she promise us according to signs and popular beliefs?

• Getting caught in a big web is a very bad sign. This promises you a lot of minor troubles and even a bad reputation about you in society.
• Touching the web a little with your hand or other part of the body is a good omen. Soon you will have a pleasant meeting with an old friend, which will be remembered by both exclusively on the positive side.
• A cobweb clung to your clothes unnoticed and you saw it only at home - to wealth.

Spider and man

There are several signs that are associated with the direct interaction between a spider and a person.

• Runs away from you - warns of an unexpected waste of money.
• A spider descends down the web right at you - this sign says that you will have the opportunity to accept an unexpected inheritance or win the lottery.
• If the descended spider is black, then you should expect bad news.
• If it fell on your head, the profit will directly fall on you.
• Falls down during a feast directly onto the table - you will have an enemy in life.
• Killing a spider is not a good omen. According to various sources, she promises forgiveness of a certain number of sins - from 7 to 40 - but it will not be achieved at a simple price: either through the illness of the one who killed the spider, or through the loss of a very valuable thing, or through parting with a dear person.
  

  Advice! If you are an ardent opponent of any living creatures in your home or have a strong fear of spiders, then you should not kill them right away. The best solution would be to carefully “evict” him: collect the cobwebs with a broom or twig and move it with the “owner” out the door!

• A spider crawling along a person’s hand is a sign that you will soon receive money.

As you can see, there are a huge number of signs and popular beliefs about spiders. And as you can see, most of them still have a favorable interpretation. If there are few spiders in your house and their presence does not particularly annoy you, do not rush to drive them out. Let them sit in the corners and slowly cleanse your home of negative energy. As long as they agree to live next to you, peace and prosperity will reign in your home.

To believe in omens or not? Everyone decides for themselves. But, be that as it may, one should always hope for a good outcome, and therefore it is better to pay attention and believe in signs of a positive nature. By the way, according to observations, these are the ones that come true more often.

The main thing is not to rush to destroy the spiders you meet. The species that live in our homes are mostly harmless. In addition, they are part of the ecosystem and help you in many ways - they eat mosquitoes, flies and other unwanted insects.

Some spiders have a rather massive body, however, despite gravity, they can easily climb absolutely smooth vertical surfaces. Zoologists have puzzled over this secret for many years, and now they have discovered an interesting anatomical feature and behavioral cunning of arthropods that allows them to crawl on any surface.

Spiders have thousands of tiny hairs on the tips of their legs that create contact points. These hairs are very small and flexible, and therefore can catch on any minimal unevenness. At the molecular level, every surface, even the smoothest in appearance, has roughness and bulges that can only be grasped by very thin hairs.

"Because the hairs on spiders' legs are also very flexible, they can catch on several parts of the surface at once. This provides additional stickiness," explains lead author Jonas Wolff, a biologist at the University of Kiel in Germany.

Unlike barnacles, which attach themselves to rocks or ship hulls, spiders only temporarily attach their legs to the surface on which they climb. Biologists call this ability dynamic attachment. The authors of the new study compare the process to putting stickers on a refrigerator.

“Unlike glue, which holds one surface to another for a long time, spider hairs stick to the bumps for just a second, after which the contact can be broken without much difficulty,” says Wolff, who has been studying this issue for many years.

As part of their experiment, scientists examined the abilities of spiders of the species Cupiennius salei. These arthropods generate enough adhesive force to keep them from falling, but are also able to quickly tear off their legs to instantly capture and consume prey.

As a rule, the attack on the victim lasts only a quarter of a second, after which the spider runs away at a speed of half a meter per second. For such manipulations, hairs must be torn off extremely quickly, says Wolff.

Initially, scientists assumed that the secret lay only in the hairs on the legs, but Wolff suspected that this was not the only feature of the spiders. He measured the force that the spider's body imparted to the glass, and it was equal to 97 milli-Newtons or 10 grams.

“It doesn’t sound very impressive, but this is three or four times the weight of the spider’s body. Thus, you can hang a load equal to its mass on the spider’s body, and the animal will not fall from a smooth vertical glass surface. In small specimens, this ratio is even higher, since the tips their paws are even smaller relative to their body volume,” says the biologist.

To determine how each individual leg generates the key force, the researchers applied warm beeswax to the spiders' legs, depriving them of their ability to cling to hairs. The paws were “turned off” first one at a time, then in pairs, and then all at once. The scientists found that the force generated by opposing paws (such as the front left and back right) unlocked the arthropod's ability to attach to smooth glass.

When the opposite legs move apart, more friction is generated between the hairs and the surface, and due to this, the spider attaches its body more securely. But at the moment when it is necessary to tear off the paws and capture the prey, the arthropods reduce the distance between the limbs, and the stickiness decreases.

In their article published in the Journal of Experimental Biology, Wolff and his colleagues talk about their observations and calculations. Scientists also mentioned that people would not be able to resort to the same trick even if they had: a person is too heavy for such abilities.

Watching in movies and on the pages of comics how any of our heroes perform superheroic deeds with the help of their superpowers, everyone sooner or later asks the question: how would he behave if he had supernatural powers at his disposal. What would you like? Run like the Flash? Fly like Superman? Hear and feel like Daredevil? Or crawl along walls like Spider-Man?

And here merciless science comes to the rescue. She takes out the starry-eyed superhero fan with a roundhouse kick to detail how such powers would work with real-life physics. Barry Allen would kill everyone he tried to save. Clark Kent would eat millions of insects every day. Matt Murdock could instantly go deaf or poisoned. But Peter Parker would be swinging huge hands the size of tennis rackets.

According to calculations by scientists from the University of Cambridge, a Spider-Man capable of sticking to walls would look quite strange. To support the weight of an adult man, the palms must be a meter in diameter, and the feet must correspond to European shoe size 145. One can only imagine what Tobey Maguire would look like with such limbs.

« If a person wanted to crawl up a wall like a gecko, they would need huge sticky feet. Shoe size - 145 European or 114 American" says Walter Fiederle, senior author from the Cambridge Department of Zoology.

The author of the original calculations, Dr. David Labonte, notes: “ As the size of the animal increases, the body surface area in volume decreases. An ant has a very large surface area but very little volume, whereas an elephant has one volume and a small surface area».

« This causes problems for large creatures attempting to climb vertical surfaces. The larger and heavier the animals, the more strongly they should stick, but they have less body surface area for suckers. In this way, the maximum size of an animal capable of sticking can be calculated. And we'll get a gecko."

But there is another solution to the problem: increase adhesion. This alternative is followed by animals whose size and weight precede the size of the sticking paws. So maybe Spider-Man won't have to fight criminals with giant potato sacks instead of fists and skis instead of feet after all.

During a long and tortured episode in the life of Peter Parker Clone Saga the hero had to face the consequences of increased stickiness. Cain, one of Spider-Man's clones created by the mad geneticist Jackal, gained the ability to "cauterize" human flesh precisely because his hands stuck too much.

So if you want to be Spider-Man in real life, don't be surprised if you're looked at as a freak, even without a mask. If evolution chooses the first option, then instead of arms and legs you will get flippers. If the second, then at the first attempt to save a person, there is a high probability that you will rip off his skin.

Scientists are not yet in a hurry to figure out how a person would produce a web in real life.

Primary source: gecko foot and micrograph of bristles with numerous “blades”

Goal: “Spider-Man suit”, allowing you to feel free on any surface

Gecko lizards can crawl along vertical walls and even ceilings thanks to millions of tiny hairs located on the soles of their feet. At the end of each hair there are thousands of miniature pads. These pads firmly adhere to any surface, interacting with it at the level of molecules and atoms, due to van der Waals forces having an electromagnetic nature. This mechanism allows geckos to support a weight several hundred times greater than their own weight, sticking their paws to the ceiling or wall.

The same principle can be successfully used to create a special suit with which a person can climb sheer walls. A corresponding statement was made by a group of Italian specialists led by Nicola Pugno. The idea is to coat gloves and boots with shredded synthetic bristles that provide a reasonable degree of adhesion to the surface. Similar materials already exist - let us recall that the ability of the Stickybot robot to move along vertical surfaces due to the many elastomer hairs covering its tentacles was previously demonstrated (we wrote about it in the article “Technologies of the Year”). However, not everything is as simple as it might seem at first glance.

The force with which the Velcro sticks to the wall is directly dependent on the area. As the gecko's body size increases, the surface area of ​​its soles will increase in proportion to the square of its length, and its weight will increase in proportion to the cube. It turns out that if a gecko is enlarged to the size of a person, it will not be able to climb any vertical walls. Therefore, Spiderman's gloves should have much more adhesion than gecko's feet.

Fortunately, the famous reptile geckos do not use the capabilities of Van der Waals forces one hundred percent. “According to some calculations, the adhesion force can be increased by as much as 200 times the level that lizards demonstrate. True, this is only a theory for now,” explains the Italian scientist. He expects to achieve acceptable performance through the use of carbon nanotubes.

However, ensuring proper adhesion is only half the battle. It is also necessary to think over a mechanism that would allow the wearer of the suit to tear off the Velcro from the wall (you need to somehow rearrange the arms and legs!). And finally, Velcro must have the ability to self-clean, otherwise dirt particles will very soon destroy them. This can be achieved by imparting very strong water-repellent properties to the adhering surface: miniature droplets of water flowing from the nanotubes will wash away foreign inclusions from them. To do this, it is enough to slightly change the topology of the working surface, although its “stickiness” will deteriorate. “It is very difficult to make all these elements work at the same time, since they are in a certain contradiction. However, geckos are living proof that in principle this is completely achievable,” concludes Nicola Puno.