Simple Ideas That Made It Big Wong Limsoon 11 February 2011 Some Inventions.

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Simple Ideas That Made It Big Wong Limsoon 11 February 2011 Some Inventions Slide 2 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 2 An invention should be Novel Non-obvious Useful It is NOT required to be complicated, technologically sophisticated, etc. So inventing should be easy But when there is already a solution to a problem, it is not easy to invent a better one Slide 3 From ancient time Slide 4 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 4 An invention is normally a device like this big stick of the Neanderthal man Slide 5 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 5 An invention can also be a process, like this ancient man drilling wood to get fire Slide 6 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 6 An invention can even be something representational, like money Slide 7 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 7 An invention can be a composition of all of the above (device, process, etc) as well Slide 8 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 8 An invention can even be something abstract, like language Slide 9 From modern times Slide 10 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 10 An invention can be a device Cat's eye is a safety device marking roads Originated in UK in 1933 and is now used all over the world A key feature of the cat's eye is the flexible rubber dome which is occasionally deformed by the passage of traffic. A fixed rubber wiper cleans the surface of the reflectors as they sink below the surface of the road (the base tends to hold water after a shower of rain, making this process even more efficient). The rubber dome is protected from impact damage by metal 'kerbs' which also give tactile and audible feedback for wandering drivers. Image and prose credit: Wikipedia Slide 11 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 11 An invention can be a process Walter Jacobs thought (in 1920s), Hmm. If people rented horses, why wouldn't they rent cars, too? He raised enough capital to buy 12 used Model T's and begin renting the cars. A few years later his fleet was up to 565 and annual revenues exceeded $1,000,000 Jacobs' thriving rental business is now the #1 rental car company in the world (Hertz) Prose credit: Ezine @rticles Slide 12 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 12 An invention can be a representation Machine Language (ATARI) 169 1 160 0 153 0 128 153 0 129 153 130 153 0 131 200 208 241 96 Machine Language (ATARI) 169 1 160 0 153 0 128 153 0 129 153 130 153 0 131 200 208 241 96 BASIC FOR I=1 TO 1000: PRINT "A";: NEXT I BASIC FOR I=1 TO 1000: PRINT "A";: NEXT I Programming a computer in the old days Programming a computer today Slide 13 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 13 An invention can be a composition of all of the above (device, process, etc) as well Slide 14 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 14 Math formula is not an invention, but its use to solve a real problem is Who is Limsoon? ~200,000 webpages contain limsoon Millions of webpages contain who is None contains all of who is limsoon Which webpages to show? Need to determine which word is key Word occurring freq in a doc & also occurs in many docs is not impt Term frequency- inverse document frequency Slide 15 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 15 Logical reasoning is not an invention, but its use to solve a problem is So who is are not impt words to look for in a doc, but limsoon is But there would still be ~200,000 webpages that are found. Which ones to show first? A webpage that is ref by more other webpages is more impt Slide 16 Exercise: Inventing the Internet Slide 17 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 17 Computer Network Jack Rose Network Long Message Problem : Data Communication relies essentially on electronic signals which can be unreliable. This slide came from Anthony Tung Slide 18 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 18 Computer Network Jack Rose Network Long Message Problem: Data Communication relies essentially on electronic signals which can be unreliable. This slide came from Anthony Tung Slide 19 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 19 Computer Network Jack Rose Network Long Message Problem: Data Communication relies essentially on electronic signals which can be unreliable. Breakdown! This slide came from Anthony Tung Slide 20 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 20 Computer Network Jack Rose Network Long Message Problem: Data Communication relies essentially on electronic signals which can be unreliable. Resend This slide came from Anthony Tung Slide 21 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 21 Computer Network Jack Rose Network Long Message Problem: Data Communication relies essentially on electronic signals which can be unreliable. Resend This slide came from Anthony Tung Slide 22 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 22 Computer Network Jack Rose Network Long Message Problem: Data Communication relies essentially on electronic signals which can be unreliable. Resend This slide came from Anthony Tung Slide 23 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 23 Can you think of a solution? Slide 24 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 24 Computer Network Jack Rose Network Short 1 Solution: Break long message to shorter message, have intermediate router Short 2 Short 3 This slide came from Anthony Tung Slide 25 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 25 Computer Network Jack Rose Network Short 1 Solution: Break long message to shorter message, have intermediate router Short 2 Short 3 This slide came from Anthony Tung Slide 26 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 26 Computer Network Jack Rose Network Short 1 Solution: Break long message to shorter message, have intermediate router Short 2 Short 3 This slide came from Anthony Tung Slide 27 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 27 Computer Network Jack Rose Network Short 1 Solution: Break long message to shorter message, have intermediate router Short 2Short 3 This slide came from Anthony Tung Slide 28 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 28 Computer Network Jack Rose Network Short 1 Solution: Break long message to shorter message, have intermediate router Short 2Short 3 Short 2 Breakdown! This slide came from Anthony Tung Slide 29 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 29 Computer Network Jack Rose Network Short 1 Solution: Break long message to shorter message, have intermediate router Short 3 Resend Short 2 from second router! Short 2 This slide came from Anthony Tung Slide 30 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 30 Computer Network Jack Rose Network An the Internet was born! Short 2 Short 3 Short 2 Short 3 Short 1 This slide came from Anthony Tung Slide 31 Talk at IvP Launch, Sing Poly, 11 Feb 2011 Copyright 2011 Limsoon Wong 31 Summary An invention should be Novel Non-obvious Useful It is NOT required to be complicated, technologically sophisticated, etc. So inventing should be easy But when there is already a solution to a problem, it is not easy to invent a better one

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