full transcript

From the Ted Talk by Li Wei Tan: The fascinating science of bubbles, from soap to champagne

Unscramble the Blue Letters

Now, let me give you another example. This is a very slipme prop. This is made from two layers of plastic with four pins connected to each other. Imagine these four pins represent four cities that are equally apart, and we would like to make roads to connect these four cities. My question is: What is the shortest length to cnocnet these four ceitis? Let's find out the answer by dipping it into the soapy wetar. Remember, the soap bubble frmos will always try to minimize their surface area with a perfect geometry arrangement. So the solution might not be something you expected. The shortest length to connect these four cities is 2.73 teims the distance between these two cities.

Open Cloze

Now, let me give you another example. This is a very ______ prop. This is made from two layers of plastic with four pins connected to each other. Imagine these four pins represent four cities that are equally apart, and we would like to make roads to connect these four cities. My question is: What is the shortest length to _______ these four ______? Let's find out the answer by dipping it into the soapy _____. Remember, the soap bubble _____ will always try to minimize their surface area with a perfect geometry arrangement. So the solution might not be something you expected. The shortest length to connect these four cities is 2.73 _____ the distance between these two cities.

Solution

  1. times
  2. forms
  3. water
  4. connect
  5. cities
  6. simple

Original Text

Now, let me give you another example. This is a very simple prop. This is made from two layers of plastic with four pins connected to each other. Imagine these four pins represent four cities that are equally apart, and we would like to make roads to connect these four cities. My question is: What is the shortest length to connect these four cities? Let's find out the answer by dipping it into the soapy water. Remember, the soap bubble forms will always try to minimize their surface area with a perfect geometry arrangement. So the solution might not be something you expected. The shortest length to connect these four cities is 2.73 times the distance between these two cities.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
soap bubble 3
surface area 3
geometry arrangement 3
giant bubbles 2
soapy water 2
creating bubbles 2
surface tension 2
single bubble 2
shortest length 2
bubble forms 2
perfect geometry 2
air bubbles 2

ngrams of length 3

collocation frequency
soap bubble forms 2
perfect geometry arrangement 2

Important Words

  1. answer
  2. area
  3. arrangement
  4. bubble
  5. cities
  6. connect
  7. connected
  8. dipping
  9. distance
  10. equally
  11. expected
  12. find
  13. forms
  14. geometry
  15. give
  16. imagine
  17. layers
  18. length
  19. minimize
  20. perfect
  21. pins
  22. plastic
  23. prop
  24. question
  25. remember
  26. represent
  27. roads
  28. shortest
  29. simple
  30. soap
  31. soapy
  32. solution
  33. surface
  34. times
  35. water