The origin of the gum.

       Gum from the latex white of the wood Sapodilla (the Sapodilla) That's what I called "The Circle" (chicle), the Mayas of the terms of residents in the chewing and teeth and jaw, but. ancient In the centuries after 1845, Mr. Charles Adams (Charles Adams) is the inventor of American tire over his back. He was very interested in this tire. But not for chewing. If a mask is used to make rubber band boots if they are not successful inventions. Until one day. He took over his rubber chew on the traditional idea of ​​a new one immediately. The flavors can be mixed into the resin film is over. Shortly after the trial was great. He opened the world's first chewing gum factory.

       The 1869 Ames William Temple City (William F. Semple) Dental of Ohio. USA This has led to the development of the gum. To encourage people to chew gum. To maintain healthy teeth and jaw. He put the ingredients in the teeth of the rubber powder, chalk, charcoal and roots rich in cattle (licorice) has since been patented.

      Chewing gum good for teeth, but not good for the environment when they chew it. I'll leave it as is. To prevent contamination to others. Because it does not wash out the damage.

Source: http://kungsss.exteen.com/20070827/entry.

The origin of the escalator. And Thailand's first escalator.

The origin of the escalator. And Thailand's first escalator.

Does anyone know the origin of the escalator. And Thailand's first escalator.

Escalators have evolved from the belt to be no end of uses for the product to the factory was used to take the belt is tilted. Travel up to the cliff there is a tradition. The escalator. Without a ladder.

For escalators. The format used is. Currently it. The ladder is mounted on each wheel up and down. Along the rails of the ladder steps to move into. One end. The escalators will gradually cut down on the escalator, take the stairs up to the lodge to move back to the elevator. The electric motor. Rotate the large gear. Traction Traction is also a moving staircase railing that ran around the track. For the user to move the elevator. Hold it.

The speed of the elevator about 40 feet per minute, the elevator will transport people to higher ground faster than the escalator, but it is also necessary because people are constantly moving escalators to move people more than the lift. In the same time.

Atiadmaro mall escalator leading family first arrived in Thailand. Opened on 10 December 2507 the townsfolk flock to the crowded escalator with his grandmother, "The Song" I'm a ride up the elevator on his Genesis of the mall's first escalator was installed Atiadmaro. Located on the banks of the World Trade Center later moved to the opposite side of the mall's escalators that move first. According to the present building or a shopping mall was demolished Atiadmaro for many years.

Source: http://variety.teenee.com/foodforbrain/31743.html.