Рет қаралды 11,858
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This is a 1972 color film by Cullen Productions, sponsored by the Lead Industries Association, about the element Lead (Pb) and its many uses. It was likely produced as a p.r. effort at a time when the element was under assault in the media, and was about to be phased out of gasoline.
The film opens with a color-coded periodic table of the elements. Only the symbol, Pb for lead is visible. "The Lead Matrix". Man is seen drilling crude ore in a mine 1:03. Rocks are transported by rail car, underground 1:32. Rail car is turned on its side and ore is dumped 1:45. Rocks are crushed 2:12. Suspended and separated 2:30. Concentrated and recovered 2:45. Centered and smelted 2:55. Molten lead 3:12. A man dips a large bucket into the molten lead 4:15. Refined, purified and poured into ingots; 2 tons of ore produce only one, 100-pound brick of lead 4:43. A map of North America 4:51. Over 1 million tons of lead are reclaimed each year 4:58. Symbol which the ancients used to represent lead 5:10. The modern day symbol for lead is Pb which stands for the word Plumbum 5:29. Lead lasts for centuries 5:45. Lead is soft and easy to process 6:00. Animation shows how lead is an effective barrier to the transmission of sound 6:25. Lead protects us in x-ray rooms 6:38. Industrial radiographic installations 6:55. Interlocking lead bricks 7:08. Gloves and aprons made with lead protect people 7:20. Lead lined plywood and cinderblocks, lead glass windows and lead personnel shields 7:36. Lead shipping containers come in all sizes 7:45. NS Savannah was the first nuclear-powered merchant ship, built in the late 1950s at a cost of $46.9 million. The ship has more than 530 tons of lead shielding 8:00. Lead sheeting protects cable 8:20. The lead flexes right with the cable 8:27. Lead is a prime ingredient in portable electric power 8:45. Electrodes made from two different forms of lead, when suspended in an acid solution outlasted and outperformed earlier galvanic batteries 8:57. Lead acid batteries come in all sizes 9:10. Battery-powered cars were the first ones produced 9:45. A Battronic van - an early electric vehicle -- is shown 9:48. UPS operates 40 electric trucks 10:00. Battery-powered electric motors power lawnmowers 10:10. Lead is used in battery-operated hand tools and golf carts 10:25. It is used in outboard motors for boats 10:40. Electric carrier carts 10:50. Industrial lift trucks powered by battery 11:05. Batteries are used for emergency standby power for schools and hospitals 11:16. An animation shows lead pipes in use 11:52. Lead is used in roofing and gutter lining material 12:06. Lead resists corrosion 12:13. Lead is used for soundproofing walls in office buildings 12:41. Lead controls sound 13:10. An airplane flies overhead 13:34. Lead is used in Hydro foils 13:51. Lead is used in soundproof movable walls 14:27. A single soundproof room 14:37. Minimizing vibrations in trains 15:15. Lead used between the columns and footings in concrete frame buildings 5:29. Lead used in the walls at the New York Philharmonic to protect from subway vibrations 15:38. Lead pads protect the Pan Am building from vibrations 15:50. Lead used in stained glass 16:00. Lead animation 16:45. Animation shows family driving 17:05. Tetraethyl lead or TEL is an odorless, colorless, liquid form of lead 17:25. Lead has valuable oxides 17:53. Lead monoxide is the most widely used 18:10. Red lead, lead chromate, lead silicate, etc. widely used today 18:21. Goblet of lead crystal by George Ravenscroft 18:34. Ceramic products made with lead oxide 18:47. Lead glass is ideal for technical purposes 19:03. Sears store 19:25. Lead products for pools, fountains and planters 20:05. Yellow highway paint, white lead and lead silicates for exterior painting 20:25. Lead is the ideal material in chemical manufacturing equipment 20:48. Lead Telluride generator powers a motor with no moving parts 21:24. The transit satellite launched by the USA 21:33. Lead is found in many car parts 21:40. Lead zirconate titanate crystals 22:04. New technology could create a lifetime strobe light activated by hand pressure alone 22:20. Cleaning systems are developed using lead with vibrations 22:51. Lead solder 23:00. Lead contributes to the production of modern containers 23:18. Leaded glass is the most crystal-clear in the world 23:58. Lead deadens sound 24:08. Lead is used in the projector lens used to show this picture 24:42. Lead gives light, power, silence, color and protection of life itself 25:03.
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