An escalator is a moving staircase that transports people between floors or levels. It consists of steps attached to a continuously moving band that carries people in one direction. Escalators were invented in 1892 by Charles Seeberger and take their name from the Latin word for stairs, "scala", and the word elevator. They are commonly found in places with high foot traffic like airports, train stations, shopping malls and allow people to move between levels without having to climb long flights of conventional stairs.

1. bridgetoreach

3. Do you know what am i?

4. I’m a machine!

5. I am a mechanizedmoving stairway!

6. Amovingstairway?

7. Yeah! I am an escalator! 

8. Who invented me?....

9. Charles D. Seeberger!!!

10. the name 'escalator'from the word 'scala'

11. which is Latinfor steps and the word 'elevator', which had already been invented.

12. It can be found in common in places with a lot of foot traffic or…

13. where a conventional staircase would be very long and tiring to climb.

14. often installed in pairs, with an upescalator and a down escalator adjacentto each other

15. a single escalator may be changed to go up

17. down according to the directionof heavier traffic at different times of the day.

18. What’s inside the escalator?

19. top and bottom landing platforms

20. truss carries all the straight track sections connecting the upper and lower sections.

21. track system is built into the truss to guide the step chain

22. The steps are linked by a continuousmetal chain so they form a closed loop with each stepableto bend in relation to its neighbors

23. railing provides a convenient handholdfor passengers while they are riding the escalator

24. Did you know how to use escalator?

25. To move from one end of an escalator to the other, a person may simply stand on one step until one reaches the end, or one may climbor descend the escalatorlike conventional stairs

26. The great majority of escalators in the world are straight

28. there are some spiral models too.

29. Escalator generally used for their aesthetic appeal

30. and

31. saving space

33. In United States...

34. There are an estimated 35,000 escalators.

35. Over 245 million riders take an escalator daily

36. About 210 billion riders travel on elevators or escalators each year in the North America.

37. Thelongestoutdoor escalator covers over 800 meters in distance and elevates over135 metersfrom bottom to top located at Hong Kong

38. Shortestescalator vertical rise is only 32.8 inches (83 cm) at Okadaya Mores shopping mall

39. earliestuses of escalators was used in the building of the Egyptian Great Pyramid at Giza

40. over 2 millionstone cubes were laid on the tree trunks and slowly rolled upwardson the artificial earth bridges that surrounded the build site

41. That continuous use of rolling wheelsbeneath the transportedweight

42. became

43. one of the basic principles behind the today’s escalators.

44. It’snot moving?

45. Are u going up or down?

47. escalators also have moving handrailswhich approximately keep pacewith the movement of the steps.

48. staircase whose steps move up or downon tracks which keep them horizontal.

49. Escalators in the London Underground used to have wooden steps

50. Escalators now have metal steps in a continuous loop that move on tracks.

51. have glass sides which allow their workings to be viewed

52. Do you realized?

53. Escalator have the capacity to move large numbers of people

54. can be placed in the same physical space as stairswould be.

55. have no waiting interval, except during very heavy traffic

56. can be used to guide people towards main exits or special exhibits

57. they may be weather-proofedfor outdoor use

58. So, what does it all means?

59. bridgetoreach

61. Credits :Content based on a encyclopediaSource of content :http://www.encyclopedia.com/topic/Escalator.aspxAndhttp://www.google.com.my/imghp?hl=en&tab=wi

62. Presentation design byMuhammad Izzat Khan