The mysterious power of plants

   An oak or pine tree can split a granite boulder in half, and even grow into a towering tree. In Huangshan, “the first strange mountain in the world,” pine trees grow from the hard Huanggang rocks. The seeds of Huangshan pine are in the cracks of granite, with indomitable, crack-entering diamond strength, where they sprout, root and grow. This is the mysterious plant power.
   Around the roots of the pine trees, there are crusty rock lichens. Their extended fronds penetrate into every tiny corner and gap. In the process of lichen alternately wetting and drying, the microscopic rock fragments mixed with it become loose due to expansion and contraction. It can be said that the seeds germinated in the cracks, which greatly enhanced the plant’s rock breaking ability, especially in the case of woody shrubs and conifers with strong extended root systems.
   The secret of the mysterious force
   in the vertical portion of the period of large concrete sewage pipes, planted a clump of bamboo. A few years later, bamboo grew a lovely big belly. Later, the belly became bigger and bigger, it really bent the 10 cm thick concrete wall of the sewer, as if the solid concrete wall was made of foam plastic!
   In fact, the production process of this “big belly” is a kind of growth law of plant tissues in a closed environment. The process of plant tissue expansion in a closed environment refers to the process of absorbing water through infiltration and self-absorption, and the overall increase caused by cell division. Essentially belongs to the activity of woody stems and roots with a sharp increase in perimeter.
   Origin Scientific imbibition
   self-priming process is actually a colloidal water molecules into the porous material and it expanded. Water (HOH) is a polar molecule with oxygen atoms negatively charged and two positively charged hydrogen atoms (H) on either side of the oxygen atom. When the colloidal material contains exposed hydroxyl groups (HO), that is, with a negatively charged oxygen atom and a positively charged hydrogen atom, water molecules penetrate into these polymers like many tiny magnets. , Adhere to the positive and negative electrodes of adjacent water molecules. This influx of water molecules and the coagulation of chemical bonds (called hydrogen bonds) cause the cell wall and its contents to expand several times their original size.
   Life: An Introduction to Biology gives an answer. The self-priming effect of the seeds may produce a pressure of 2.3 tons per square centimeter. When the seeds absorb moisture and swell, the actual pressure that causes the seed shell to crack is amazing! According to scientists’ research, the pressure produced by the swollen seeds has reached 1,000 times the normal atmospheric pressure!
   Another surprising fact about self-priming is that there is a plausible explanation for the excavation of the large limestone blocks used in the construction of the pyramids in Egypt and Maya: these huge stones were hammered into the stone by round wooden stakes Surface holes were then mined out by soaking wooden stakes in water. As the pillars expand, the force generated by self-priming is sufficient to tear the rock.
   The application of self-priming in medicine is also very extensive. It can be used to dilate the ear canal so that it can be excreted normally. An elongated porous cylinder called the “ear core” is inserted into the blocked ear canal, which gradually absorbs water and swells. The same mechanism is used in routine gynecological examinations. A thin kelp called “dilateria” is used to dilate the cervix. A cylinder of brown algae is inserted into the cervix, where it absorbs moisture and swells.
   Mysterious forces have advantages and disadvantages
   plant has so much ability, many of whom are amazing destructive power, mainly because of the amazing physical pressure force generated by the plant growth and imbibed generated. Some invasive species, such as plants with huge surface roots and rhizomes distributed underground, can easily damage concrete driveways and rock walls.
   If there is a kind of tree that is very suitable for trick or treat, it is the “leg neck fig tree”. No matter where it is located, its strong root system spreads among the rocks, and gradually turns the huge vertical walls into rubble. According to a famous neotropical botanist, strangled fig trees are likely to be the main plant that led to the destruction of ancient Mayan buildings in Central America; in the 18th and 19th centuries, Britain and France built the strategically important Caribbean island The closed and strong military fortress was also destroyed by the fig tree at the neck. Therefore, people must constantly fight this natural plant invasion.
   However, although plants have such a huge destructive power and brought some trouble, most of them are actually quite beneficial to the natural environment. Plants help nature produce more nutritious soil and provide habitat for countless animal species. Not only that, plants provide us with oxygen, food, beverages, textiles, paper, wood, and medicines, and we are loyal partners of human beings. Our survival is inseparable from these “hercules”. Not to mention, in addition to these, they also provide us with beautiful forests, meadows and colorful flowers and fragrances.