07/19/14 07/19/14 03:59 03:59 dovanhuu@yahoo.com dovanhuu@yahoo.com PCT_BMT PCT_BMT 1 1 Saturday, July 19, 2014 Period 91 07/19/14 07/19/14 03:59 03:59 dovanhuu@yahoo.com dovanhuu@yahoo.com PCT_BMT PCT_BMT 2 2 1843 Alexander Bain 07/19/14 07/19/14 03:59 03:59 dovanhuu@yahoo.com dovanhuu@yahoo.com PCT_BMT PCT_BMT 3 3 (1) Printing Press(2)1810 (3) Bicycle (4) German (5)1843 (6) Alexander Bain (7)English (8)Sewing machine (9) F.J. Monier (10)French (11) D.E. Hughes (12)American (13) Wilhelm Konarad (14) German (15) 1939 (16) American (17) Optical fiber 1 2 3 4 07/19/14 07/19/14 03:59 03:59 dovanhuu@yahoo.com dovanhuu@yahoo.com PCT_BMT PCT_BMT 4 4 07/19/14 07/19/14 03:59 03:59 dovanhuu@yahoo.com dovanhuu@yahoo.com PCT_BMT PCT_BMT 5 5 Saturday, July 19, 2014 Period 90 07/19/14 07/19/14 03:59 03:59 dovanhuu@yahoo.com dovanhuu@yahoo.com PCT_BMT PCT_BMT 6 6 a) b) c) d) simple same 200 (1) (2) (3) (4) (5) left rollers <<<Click to hear sounds 07/19/14 07/19/14 03:59 03:59 dovanhuu@yahoo.com dovanhuu@yahoo.com PCT_BMT PCT_BMT 7 7 a) b) c) d) e) f) g) c) d) a) e) g) f) b) <<<Click to hear sounds 07/19/14 07/19/14 03:59 03:59 dovanhuu@yahoo.com dovanhuu@yahoo.com PCT_BMT PCT_BMT 8 8 Tape scritp_Unit 16: Tape scritp_Unit 16: Papermaking is a simple process. The Papermaking is a simple process. The procedure is almost the same as it was 200 procedure is almost the same as it was 200 years ago. Look closely at the picture of an old years ago. Look closely at the picture of an old papermaking machine. On the left is the pulp papermaking machine. On the left is the pulp vat. Paper pulp was placed in the vat and vat. Paper pulp was placed in the vat and mixed with a lot of water. The water was then mixed with a lot of water. The water was then drained and the pulp fibers were poured out of drained and the pulp fibers were poured out of the vat and onto a conveyor belt. The conveyor the vat and onto a conveyor belt. The conveyor belt took them under the rollers. There were belt took them under the rollers. There were quite a lot of rollers as you can see. These quite a lot of rollers as you can see. These rollers smoothed the fibers and pressed them rollers smoothed the fibers and pressed them dry. The finished paper was then put on a roller dry. The finished paper was then put on a roller at the end. You can see the roll of paper at the at the end. You can see the roll of paper at the far right of the picture. far right of the picture. 07/19/14 07/19/14 03:59 03:59 dovanhuu@yahoo.com dovanhuu@yahoo.com PCT_BMT PCT_BMT 9 9 _____ _____ The end of The end of section “Write” section “Write” THANK you for THANK you for your ATTENTION your ATTENTION 07/19/14 03:59 dovanhuu@yahoo.com PCT_BMT 10 Good bye. See you next time . The conveyor belt took them under the rollers. There were belt took them under the rollers. There were quite a lot of rollers as you can see. These quite a lot of rollers as you can see water was then drained and the pulp fibers were poured out of drained and the pulp fibers were poured out of the vat and onto a conveyor belt. The conveyor the vat and onto a conveyor belt see. These rollers smoothed the fibers and pressed them rollers smoothed the fibers and pressed them dry. The finished paper was then put on a roller dry. The finished paper was then put on