MAPA CIENTIFICOS

 hello today I'm going to explain: what is a crossbow, a little of his history and the different types. What is a crossbow:  The crossbow is a propelling weapon that is used to shoot arrows or bodoques, consisting of a bow mounted horizontally on a support provided with a mechanism that tightens the rope and another that shoots. Although it is a very old martial instrument, they are still used today, (as for target shooting and hunting). His history:  The crossbow is a weapon that began to be used in the West in a massive way in the 10th century, being the evolution and improvement of the bow and arrow.  It was possible to flex the metal arch with different ways: the first consisted of putting the bow on the ground and tightening the wire with both hands or the foot, until it was locked on a hook. Later various mechanisms (hulks) were mounted on the central rail. The most successful and used was the tensioning by means of a crank tourniquet. Its power became consider...

 Hello, today I am going to explain you: what is archery?, What components is the arch made of?, what types of rope are flexible and resistant?, and his history. Wat is Archery? = Archery is a sport of precision and strength so in principle its practice requires a great capacity for concentration, but also a correct physical preparation. It consists of hitting the closest to the center of the target to obtain the maximum number of points. So far there are seven modalities in archery, which are: 1. Archery on an outdoor target                   2. Indoor archery                   3. Field shooting                   4. Long-distance archery                   5. Bow running                   6. Bow skiing         ...

 It is nearly April and I have decided to teach you one of the sports that I practice: "the archery". I have been practicing this size since I was 5 years old, and it is very funny.  I promise to solve all the questions you have, for example: types of bows, the best arrows, the best places to practice, ... The next entry I am going to explain you: what is the archery, What components is an arc made of, what types of rope are flexible and resistant and their history. And I will saw a video to teach you techniques to hit the center of the objective. Once I have explained what I am going to do, I am going to explain a little about wat is a bow: A bow is a flexible weapon that shoots arrows. A string or loop is attached to the two ends of the bow and when the string is repeatedly stretched, the ends of the bow flex. When the string is released, the potential energy generated by the bending of the bow is transformed into the speed of the arrow. Today, bows and arrows...

Hola chicos, bienvenidos a una nueva entrada de Mapacientíficos.  En el día de hoy os explicaré: qué son, pros y contras, tipos, el hidrógeno y conclusión de las " Energías renovables y no renovables ".