Invention of paper

[vc_row][vc_column width=”1/1″][vc_empty_space empty_h=”0″][vc_column_text][youtube]https://www.youtube.com/watch?v=COxB_GvdzWI[/youtube][/vc_column_text][vc_separator][vc_column_text]*Tutors – please transcribe your student’s answer to the questions. Give feedback and correct his/her answer once your student finishes his/her answer. Please do not stop your students while they’re talking and wait patiently until they finish their sentences unless they ask for help.[/vc_column_text][vc_separator][vc_column_text]*Use these templates: questions and answersvocabulary

Go to File – Make a copy – You’ll get your own template – Share it with your student[/vc_column_text][vc_empty_space empty_h=”0″][vc_separator][vc_column_text]

Script

 

00:07 This one here, and here… And here…

00:13 And… It’s done! IT’S DONE!

00:17 I have invented the time machine!

00:21 But do you know, one of mankind’s greatest inventions is probably lying around you right now?

00:28 That’s right my friend, PAPER!

00:32 This little thing is so abundant that it sometimes feels like a natural product.

00:38 But it isn’t quite so.

00:41 Ooooh oooh. Oh, no! There it goes…

00:47 Let’s trace this paper back to it’s roots.

00:50 Zoom in!

00:55 In ancient times, that is before the paper was invented,..

01:00 ..people used to carry information not only in their brains…

01:05 But on them too!

01:08 Writing was usually done on bones, bamboo tablets or animal skin.

01:17 Which made accessing these writings, err…messy and tedious.

01:24 There was however, one Chinese man, in the Han Dynasty, in 105 AD..

01:31 ..who revolutionized the way people wrote and read, forever!

01:36 The legend says, that a man named Cai Lun, once saw a wasp, knitting it’s nest.

01:43 It was then that an idea struck him.

01:48 He took the bamboo fibers..

01:53 ..added them to water..

01:55 ..and pounded them with a wooden tool.

01:58 After the fibers were thoroughly interwoven,..

02:02 ..he poured the whole mixture on a flat woven cloth.

02:07 Letting the water drain out.

02:09 He let the wet mixture dry up in the sunlight.

02:13 And, Voila!

02:15 After a few hours, the world’s first paper was born.

02:24 Cai Lun, presented his paper making process to the Chinese Emperor.

02:29 And received praise for his ability.

02:32 From that time, paper has been in use everywhere.

02:37 And, is universally called the paper of Marquis Tshai.

02:44 It was easy to make, the writers were happy,..

02:49 ..and of course, it was light weight.

02:53 Do you know, although the Chinese kept the secret of paper making,..

02:57 ..discreet for a long time.

03:00 The secret eventually started spreading,..

03:04 ..after the defeat of the Chinese T’ang army in 751 AD.

03:11 By the end of the 12th Century,..

03:14 ..a major part of the world was using, Cai Lun’s method of manufacturing paper.

03:21 But as the popularity of this spectacular new invention grew,..

03:26 ..so did the demand!

03:29 A demand that the manual method of paper manufacturing couldn’t certainly meet.

03:36 This eventually gave way to water-powered paper mills,..

03:41 ..the first evidence of which..

03:43 ..dates back to the Spanish Kingdom of Aragon in 1282

03:50 The most common fiber source the manufacturing process used..

03:55 ..was from the rag picker!

03:58 Which included hemp, linen, and cotton.

04:03 Use of this fiber source was to continue for another 6 centuries..

04:09 ..before another revolution!

04:15 Although this paper was cheaper than the traditional writing material..

04:19 ..such as animal skin and bones.

04:22 The cost was still high and production was low.

04:27 Keeping it out of the reach of a common man.

04:32 But this was only until two men, from different continents..

04:36 ..named Friedrich Gottlob Keller and Charles Fenerty..

04:41 ..tried wood fibre as a source material.

04:45 In light of this new discovery,..

04:47 ..the mills started replacing this new discovery to wood fiber.

04:52 And a new Era of papermaking began in mid 1844.

04:59 And by the end of the 19th Century, all the paper manufacturers in the West,..

05:05 ..were converting wood to paper.

05:09 And, my friends, what is paper without pen and pencils.

05:14 Awww… It would be the same as me without you.

05:20 So, with the invention of fountain pen and pencils,..

05:25 ..the paper industry skyrocketed!

05:30 Books were written and read.

05:33 Paper money was printed.

05:36 Even the gifts were wrapped in paper.

05:43 Sorry.

05:46 Sorry, sorry, sorry…

05:49 I said sorryyyy…

05:55 Don’t worry, we are safe now.

06:00 He was just a paper tiger.

06:03 So, what’s more?

06:05 Done… done… done. Oh, Yeah!

06:10 TRIVIA TIME!

06:12 Did you know, for every ton of paper that gets recycled..

06:16 ..we save three cubic yards of landfill space..

06:21 7000 gallons of water.

06:24 And, 20 trees.

06:28 It also produces 73% less air pollution..

06:33 ..than making paper from new materials.

06:37 And, what’s more? The amount of energy saved from recycling..

06:41 ..can power an average home for 6 months!

06:47 Global Toilet paper demand, uses nearly 30,000 trees, every day!

06:54 That is, 10 Million trees a year.

06:58 Almost half of global wood harvest, becomes paper!

07:03 Think about just how many trees we could save, if we all went paperless!

07:10 So, there you have it.

07:12 Some of the interesting things that I know about paper, and you should too!

07:19 I hope the next time you read or write something, it’s worth the paper it’s written on.

07:26 And remember friends, to tune in for the next episode.

07:31 This is me, zoooming out!

07:35 Hey kids, you liked my videos, didn’t you?

07:39 Before you go, don’t forget to click on the ‘Subscribe’ button and the bell.

07:44 So you won’t miss out on my latest videos.

07:49 See you.

[/vc_column_text][vc_separator][vc_column_text]

Questions

  1. What are the causes of floods? (01:10)
  2. How many major categories of floods are there? (01:27)
  3. How long does a slow on-set flood last? (01:46)
  4. How long does a rapid on-set flood last? (01:53)
  5. How dangerous is a flash flood? (02:07)
  6. What can we do to help prevent floods? (02:38)
  7. Can floods occur in deserts? (02:58)

[/vc_column_text][/vc_column][/vc_row]

Comments

mood_bad
  • 아직 리뷰가 없습니다
  • 리뷰 달기