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In fact, those science fiction films are against the laws of physics, generally (not absolutely), the smaller the animal, the stronger the athletic ability relative to itself, the kitten can jump several times the height of their own height, the mouse can run with something several times heavier than themselves, but the heavier animals, like tigers, and even elephants are simply not like small animals, and the physical abilities of animals are not equally magnified.
Why? First of all, the weight of an animal is proportional to the third power of its height. Take a simple cube as an example, the weight of the cube is proportional to the volume, and the volume is proportional to the 3rd power of the side length of the cube, assuming that the length of a flea is about 1 millimeter, if you zoom in to 1 meter, the body length increases by 1000 times, then the weight increases by 1 billion times.
So what does animal power have to do with it? Strength is proportional to the cross-sectional area of the muscle, and if a creature is magnified in equal proportions, that is, the strength is proportional to the square of the height. To understand this problem intuitively, we can think of it this way, we usually use the naked eye to judge whether a person's strength is strong, is to see how thick his arm is, not to see whether his arm is long.
Generally speaking, (note the word, not absolutely) the thicker the arm, the greater the force, that is, the strength is proportional to the cross-sectional area of the muscle.
So a huge creature, because the weight is increased by the 3rd power, the strength is increased by the 2nd power, mathematically speaking, the weight rises much faster than the strength, so if the flea is really enlarged to 1 meter, it will be like other animals about 1 meter, such as Erha, at most it is more than a meter high.
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Fleas can jump at least 100 times their height, and mountain antelopes can jump about 15 times their own height, so fleas will jump a little higher.
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Altitude can be measured in two ways: absolute and relative. For example, if you can jump 1 meter high, and a mouse can jump 40 centimeters, then in absolute height, you can jump higher than a mouse; But if you compare the height with the length of the jumper, then if you jump less than 1 times your length, and the mouse jumps 4 times the length of your body, the relative height of the mouse jump is much higher than yours.
Cougars can jump up to 12 meters high.
If the absolute height is compared, large animals will naturally have a greater advantage. According to an early 20th century record, the white-tailed long-eared hare can leap up to one metre in place, the highest absolute height ever known. Cougars can jump up to the metre, but up to 12 metres in the run-up jump.
High Jump Champion – Flea.
If you compare the relative heights, the smaller the animal, the better.
Fleas are well-known champions in high jumps, specifically, dog fleas, which can jump up to 25 centimeters in height. The absolute height is indeed not very high, but the relative height is very amazing, they are only 1 3 mm long, and they can jump up to 200 times the length of their body, which is equivalent to an adult jumping to the top of the Eiffel Tower in France.
High jumpers in the water - dolphins.
There is also a high jumper in the water, the long-snouted spinner dolphin, which can jump up to 3 meters above the surface. What is more special is that most animals jump high either to avoid predators or to prey, while the reason why dolphins jump out of the water is not very clear, perhaps to increase vision, navigation, communication with peers, remove parasites, or simply for fun.
The method of jumping is also completely different from that of land animals, which accumulate energy through their leg muscles and then release it instantaneously to propel their bodies to jump, while long-nosed spinner dolphins generate power by twisting their bodies.
High jump champion among mammals.
The Gänglu rat is famous for its two long legs, which at first glance resemble the stature of an athlete. They are only about 10 centimeters tall, but they can jump to a height of meters, which is more than 20 times their height, which is equivalent to a human jumping to a height of more than a dozen stories. Thus, in terms of relative height, among mammals, the more glue rat is the champion of the high jump.
Two insect high jumpers.
The cicada is another small insect that is only about 6 millimeters long, but can jump to a height of 70 centimeters, which is 116 times the length of its body. Grasshoppers are about 5 centimeters long and can jump up to 25 centimeters tall and 1 meter away.
The length of the hind legs of grasshoppers is about the same as the length of the body, and they are twice as long as the front and middle legs. According to the principle of leverage, the longer the lever, the less effort it has, so the long legs of the grasshopper are an important reason for its excellent bouncing ability.
Powerful hind legs.
Fleas, cicadas and grasshoppers rely on their powerful hind legs for their excellent jumping ability. They use their hind legs as multi-joint levers to squat down to pull the muscles first, gather the energy, and when the energy is released, they lift into the air like a spring that has been released. The insects have spikes on their claws, precisely to get a strong grip and not slip when taking off.
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If you convert it according to the ratio of the distance of the jump to the height, then it must be the flea that jumps high, because it can jump several times its height, and the mountain antelope can't do it.
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Compared with the flea and the mountain antelope, I think the flea will jump higher, after all, the antelope may only be a few meters high when it jumps, but the flea has jumped dozens or even hundreds of times more than the height of its own body, so there is no comparison.
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The highest jumper deserves to be the flea. In terms of their size, they are the longest jumpers of all animals. Fleas can jump up to 220 times the length of their body and 150 times the height of their body!
What is the concept? That is, a person of 1.8 meters has to jump nearly 400 meters, nearly 1 mile; Jump 270 meters high - almost 90 stories or so.
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The level of bounce depends on the calf muscles, and fleas are as big as gazelles, and fleas that jump on 4 legs together are certainly not as flexible as gazelles. In addition, the living environment of the two is different, the mountain antelope inhabits the peaks of Ethiopia above 4,300 meters, can fleas survive there? Before the game even started, it was probably already dying.
So my personal opinion is still in favor of Shanjing.
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Of course, it's still a jump, after all, his bounce power is there.
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If it is the same size, the flea will jump high, and it has some advantages of the bouncing function earlier, which is also the difference of the species, so it tends to jump in a higher direction.
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I think it should be that the flea will jump higher, after all, the jumping ability of the flea is not comparable to ordinary animals, it can jump hundreds of times its own height, but it is impossible to jump so high like an antelope.
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If the flea is as big as the goat's, I personally think the goat jumps high, because if the flea is so big, he can't jump. Moreover, a goat jumps much higher than a flea.
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It's common sense, fleas are better.
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If the flea is the same size as the antelope, then there is no doubt that the flea will jump higher, and in terms of actual structure, the overall long jump ability of the insect is much stronger than that of a mammal like the antelope.
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The bounce power of the flea itself is higher than that of the mountain antelope, even if the flea does not change its size, the jump height is not necessarily lower than the mountain antelope, if the flea becomes larger, it must be higher than the mountain antelope.
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That must be a flea jumping higher, and the flea can jump up to 35 centimeters. Fleas are only 3 millimeters long and weigh only about 200 milligrams, but they can jump up to 350 millimeters in height. That is, the flea jumps more than a hundred times higher than its body length.
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Because fleas have a strong ability to bounce, fleas jump higher than gazelles.
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According to the conversion relationship between body weight and high jump, if the flea is the same size as the mountain antelope, it is naturally converted into bouncing and the natural flea jump is much higher than that of the mountain antelope.
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The main thing is the ratio of the distance jumped to the weight of the body, and it is clear that the flea is much larger than the mountain antelope. Hence the fleas will be higher.
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Fleas can jump up to 35 cm, the length of the flea is only 3 mm, the weight is nearly 200 mg, but the height of the jump is 350 mg, that is to say, the height of the flea jump is more than 100 times its depth, the flea jumps every four seconds, jumps continuously for 78 hours vertically, and the force used is 140 times its own weight, so it must be the height of the flea jump!
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Hello! Fleas jump high only when they are small. If it's as big as a goat. I can't jump high. For example, adults and children race to run, and children are explosive and fast. Run fast.
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I think it's still a mountain antelope, after all, people don't exercise every day to run and jump.
If the flea had become so big, it would have been fattened to death if it had been eaten, or it would have starved to death if it had nothing to eat, and it would only suck blood when approaching him.
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Of course, it's a flea, because its jumping ability is several times that of a mountain antelope, and if they were the same size, it would jump higher than a mountain antelope.
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The reason why fleas can jump very high is not unrelated to their own quality, if they are the same size as the mountain antelope, their weight is affected by weight, and they will not jump very high. For example, elephants, rhinos and other large land animals are basically not very good at bouncing. The size and evolution of the mountain antelope can be said to be very perfect, suitable for jumping and running, and the cockroach becomes the same size, which may not jump over the mountain antelope.
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Gazelle, of course!
If the flea is too big, it is estimated that it will lose the advantage of jumping!
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Personally, I think that although the flea is small, it is the same size as the mountain antelope, and it will jump higher.
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I think the flea should jump a little higher because his hind legs are very advantageous. Able to support objects that are many times heavier than the body. It's much higher than the antelope bouncing. This is determined by the special structure of his body.
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Fleas are a type of parasite. The parasite receives food and protection from another organism (the host) without giving anything in return. Adult fleas feed on the blood of mammals (including humans) and birds.
Fleas are very well adapted to this parasitic lifestyle. Their flat body makes it easy to navigate between fur or feathers. Because the skin of fleas is thick and hard, they cannot be damaged by scratching by the host.
Although fleas are insects, they do not have wings. They jump from one host to another. Their jumping ability is extraordinary, with some fleas being able to jump up to 200 times their body length.
If humans had the ability to jump, we would be able to jump about 340 meters.
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This is because it has a lot of elastin on its body, which can bounce like a rubber band and has a very strong explosive power.
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Because the flea's bouncing ability is very strong, and this is one of its abilities, only in this way can it survive better.
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If someone is that big, a flea can jump about 600 meters.
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The first question of the 2006 Shandong College Entrance Examination is this topic. Let's take a look at it when you have time.
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The flea grows very small, but it has a very elastic substance due to the inside of its body. With this, it can leap 30 centimeters with just one jump, and jump up to 20 centimeters up, which is 100 times its length, although this distance is nothing.
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Laundry detergent is a good auxiliary tool to eliminate fleas, the main harm is to spray insecticides, I had fleas at home at the time, and then my mother sprayed the bed board and floor with Cress, sanitized the insects and fell to the ground, and was not bitten that day. It's been more than two years now, and there hasn't been **. If you feel that there are many fleas in your home, you may wish to soak the clothes, bed sheets and other items in the laundry detergent for 10 to 30 minutes, which can basically effectively eliminate fleas.
Ordinary families should be vigilant enough when purchasing and using insecticides, first of all, they should be used sparingly, and only in moderation. The second is to leave the scene immediately after spraying the insecticide. Half an hour later, open the windows and ventilate them before entering the room.
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Prevention and control methods:
1. Exposure to bed boards and textiles can kill insect eggs;
2. Frequent use of a vacuum cleaner to clean the bed board and the surrounding crevices can also effectively reduce lice and fleas. After vacuuming, continue to start the vacuum cleaner and put insecticide at the mouth of the straw to reduce lice and fleas in the vacuum cleaner. You can also carefully remove the vacuum bag and put it in the sun to kill lice and fleas with high temperature.
3. To kill bed bugs in the living room, you can use organophosphorus insecticides to set up guards, and the method must be protected to avoid children's contact. Use a sprayer, wear a mask and gloves for application, wash hands after application, and disinfect. After spraying the drug, close the doors and windows for 3 hours before entering, and come in after three hours to clean up, and check the gaps in time for residual dust lice, bed bugs, and book lice.
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Because anyone who has seen fleas knows it. Fleas have long hind legs, well-developed leg muscles, and a protein in their body that is specifically responsible for jumping. This allows the flea's hind leg muscles to contract strongly, allowing for a huge burst of energy when jumping.
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Because the height of the flea jump is nearly 100 times its height, from this point of view, the flea is the champion of jumping.
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The flea bounce is so powerful that it can jump two hundred times its height to the height of a person, which is equivalent to a person jumping onto a building about 400 meters high, and no creature on earth can do this.
There is an animal, the size of a cat, and the appearance of a tiger, what kind of animal is this, this is (tiger cub)
It's not an artificial lobster, because the customers of the restaurant prefer lobsters of this weight, so the restaurant stipulates the weight and size when acquiring it, and it is not about the same size, they don't charge it at all, so it looks the same size.
Fetal arrest is the stage before spontaneous abortion, which refers to the death that occurs during growth and no longer continues to develop, and spontaneous abortion refers to the self-protective expulsion of the embryo by the mother after death. There are many types of miscarriage, and according to the development of the abortion condition, it can be divided into threatened abortion, unavoidable miscarriage and incomplete abortion.
The impact of an ice ball as big as the sun on the sun will cause the surface of the sun to cool and darken for tens of thousands of years, causing the extinction of life on Earth, but in the future, the sun will emit more heat and brighter.
That can be the same medicinal properties vary greatly.