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The name aikido is formed by the combination of three characters in the Japanese language. Ai, which means joining; ki, which means spirit and do, which means way. These three words actually summarize the essence of aikido as a form of martial art— the joining of the spirit to find the way. It was only in the period from 1930s to the 40s that the name aikido was officially accepted as the name of the martial arts form.

Aikido uses techniques that do not damage or kill unlike other forms of martial arts. The movements and skills being taught are just meant to divert attention or immobilize people. This is perhaps the reason why most people prefer aikido, because of it’s focus on peace and harmony as opposed to aggression and conflict. In fact, aikido developer Morihei Ueshiba believes that to control aggression without causing any injury is the art of peace.

Ueshiba, who is also called Osensei, which means Great Teacher, created aikido from the principles of Daito-ryu aiki-jujutsu. He incorporated the techniques of the yari, the spear; the juken, which is a bayonet; and the jo, which is a short quarterstaff). But what ultimately separates aikido from other forms of martial arts is the fact that its practitioners can attack while empty-handed. Practitioners need no weapons for protection.

As a young child, he was much into physical fitness and conditioning. This is because of his vow to avenge his father’s death. Eventually, his studies and activities brought him to the discipline of the different martial arts. He studied all. He even has certificates, fencing, fighting with spears, etc. He has learned it all. This is perhaps the reason why aikido is such a diverse and multi-disciplinary form of martial arts.

Yet despite his know how, he remains dissatisfied. He felt that there is still something missing. It was then that he turned to the religions. He studied under a spiritual leader, Onisaburo Deguchiof the sect Omoto-kyo in Ayabe. Deguchiof taught him to take care of his spiritual growth. He then combined his spiritual beliefs and his mastery of the different martial arts. Aikido was born.

His association with this charismatic spiritual leader Deguchiof also paved the way for his introduction to the elite political and military people as a martial artist. Because of this connection, he was able to establish aikido and even transferred the teachings to students, who have in turn developed their own styles of movement in aikido.

Aikido is a combination of the different styles of jujitsu as well as some of the techniques of sword and spear fighting, of which Ueshiba is an expert. To get an overall picture, aikido combines the joint locks and throws techniques of

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Pyramid Parachute

Parasol type

Conical parachute

Pack-style parachute

Round parachutes

Square parachutes

Ram-air parachutes

Ribbon/Ring Parachute

In its basic sense, a parachute is neither made for travel and sports, it was created to increase safety while descending from a certain altitude. It is a medium to delay the pull of gravity from earth when deployed form higher altitude.

In short, it makes the dropping of an item, a person or equipment vertically or diagonally slower by reducing the amount of dragging force while maintaining a balance so that the item would remain safe until it reaches the ground. Early physicists have made use of this principle and newer develops in parachuting technology led to the creation of various types of parachutes.

Early types of parachutes

Parasol type – Though not strictly called parachutes, the parasols were commonly used by performers in China to create a slow falling effect onstage.

Conical parachute – Possibly the earliest form of parachute is the conical shaped-parachute which appeared during 1470s in Italy preceding the design conceptualized by Leonardo da Vinci. As an escape device, this type of parachute was intended to allow people to get safely on the ground from burning buildings. However, there are no written records whether this parachute was ever used for that purpose.

Pyramid Parachute – Another design by Leonardo da Vinci, this parachute was conceptualized in Milan during the early part of 1480. It was a canopy that is supported by light wood held by a square bottom frame.

Pack-style parachute – This is the predecessor of all parachutes that are stored in casings these days.

Round parachutes – A basic drag device, round parachute is used in various settings like medical missions, cargo applications and military operations. While being described commonly as round in shape, the parachute actually resembles a dome or a jellyfish. This has been among the most popular type however; present-day parachutists don’t normally use this kind of parachute.

The earliest round parachutes were circulars with flat surfaces that made them unstable, thus causing a number of deaths and injuries on parachutists. To add more stability, military round parachutes were made parabolic or conical in shape.

There are two types of round parachutes- steerable and non-steerable. Like ram-air parachutes, non-steerable parachutes can’t be maneuvered to

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