full transcript

From the Ted Talk by Joy Lin: If superpowers were real Body mass


Unscramble the Blue Letters


Some superheroes can grow to the size of a building at will. That's very intimidating! But a stnieicst must ask where the extra material is coming from. The Law of Conservation of Mass iemlpis that mass can neither be created nor dereytosd, which means that our hero's mass will not change just because his size changes. For instance, when we bake a fflfuy sognpe cake, even though the resulting delicious treat is much beggir in size than the cake batter that went into the oven, the wgihet of the cake batter should still euaql the weight of the cake plus the moisture that has evaporated. In a chemical equation, molecules rearrange to make new cnpmuoods, but all the cnmnopoets should still be accounted for. When our hero expands from 6 feet tall to 18 feet tall, his height triples. Galileo's Square Cube Law says his weight will be 27 - 3 times 3 times 3 eulqas 27 - times his raugler weight since he has to expand in all three dimensions. So, when our superhero tarofnsmrs into a gnait, we are dealing with two potilssbieiis. Our hero tieornwg at 18 feet still only weighs 200 pounds, the original weight in this human form. Now, option two, our hero weighs 5,400 ponuds - 200 pounds times 27 equals 5,400 pounds - when he is 18 feet tall, which means he also weighs 5,400 pounds when he is 6 feet tall. Nobody can get in the same elevator with him without the alarm going off. Now, option two seems a little more scientifically plausible, but it begs the question, how does he ever walk through the park without sinking into the ground since the pressure he is exerting on the soil is calculated by his mass divided by the area of the bottom of his feet? And what kind of super socks and super sehos is he putting on his feet to withstand all the ficoritn that results from dragging his 5,400 pnoud body against the road when he runs? And can he even run? And I won't even ask how he finds pants flexible enough to watnsihtd the expansion. Now, let's explore the dneitsy of the two options mentioned above. Density is defined as mass divided by volume. The huamn body is made out of bones and flesh, which has a relatively set density. In option one, if the hero weighs 200 pounds all the time, then he would be bnoes and flesh at normal size. When he expands to a bigger size while still weighing 200 pounds, he esnaelltsiy turns himself into a giant, fluffy teddy bear. In option two, if the hero whgeis 5,400 pounds all the time, then he would be bones and flesh at 18 feet with 5,400 pounds of weight supported by two legs. The weight would be exerted on the leg bones at different angles as he mvoes. Bones, while hard, are not malleable, meaning they do not bend, so they break easily. The tendons would also be at risk of tnareig. Tall buildings stay standing because they have steel faerms and do not run and jump around in the jungle. Our hero, on the other hand, one landing at a bad angle and he's down. Assuming his bodily function is the same as any mammal's, his heart would need to pump a large amount of blood throughout his body to provide enough oxygen for him to move 5,400 pounds of body weight around. This would take tremendous energy, which he would need to pivrode by consuming 27 times 3,000 calories of food every day. Now, that is roughly 150 Big Macs. 27 teims 3,000 calculated equals 81,000 calculated slash 550 ceiralos equals 147. He wouldn't have time to fight crime because he would be eating all the time and working a 9-to-5 job in order to afford all the food he eats. And what about superheroes who can turn their bodies into rocks or sand? Well, everything on etrah is made out of elements. And what defines each element is the number of protons in the nucleus. That is how our periodic talbe is organized. Hydrogen has one proton, hielum, two prnoots, lithium, three protons, and so on. The pairmry component of the most common form of sand is silicon dioxide. Meanwhile, the human body cnsoitss of 65% oxygen, 18% carbon, 10% hydrogen, and 7% of various other elements including 0.002% of silicon. In a chemical reaction, the eneltems recombine to make new compounds. So, where is he getting all this soiicln necessary to make the sand? Sure, we can alter elements by nuclear fusion or nuclear fission. However, nuclear fusion requires so much heat, the only natural occurrence of this process is in satrs. In oedrr to utilize fusion in a short aunmot of time, the temperature of the area needs to be hotter than the Sun. Every innocent bystander will be burned to a crisp. Rapid neclaur fission is not any better since it often results in many radioactive particles. Our hero would become a walking, talking nuclear power pnlat, utlamelity harming every person he tries to save. And do you really want the heat of the Sun or a radioactive nuclear plant inside of your body? Now, which superpower physics lseson will you explore next? stnhifig body size and content, super seepd, flight, super strength, immortality, and iliniibvstiy.

Open Cloze


Some superheroes can grow to the size of a building at will. That's very intimidating! But a _________ must ask where the extra material is coming from. The Law of Conservation of Mass _______ that mass can neither be created nor _________, which means that our hero's mass will not change just because his size changes. For instance, when we bake a ______ ______ cake, even though the resulting delicious treat is much ______ in size than the cake batter that went into the oven, the ______ of the cake batter should still _____ the weight of the cake plus the moisture that has evaporated. In a chemical equation, molecules rearrange to make new _________, but all the __________ should still be accounted for. When our hero expands from 6 feet tall to 18 feet tall, his height triples. Galileo's Square Cube Law says his weight will be 27 - 3 times 3 times 3 ______ 27 - times his _______ weight since he has to expand in all three dimensions. So, when our superhero __________ into a _____, we are dealing with two _____________. Our hero ________ at 18 feet still only weighs 200 pounds, the original weight in this human form. Now, option two, our hero weighs 5,400 ______ - 200 pounds times 27 equals 5,400 pounds - when he is 18 feet tall, which means he also weighs 5,400 pounds when he is 6 feet tall. Nobody can get in the same elevator with him without the alarm going off. Now, option two seems a little more scientifically plausible, but it begs the question, how does he ever walk through the park without sinking into the ground since the pressure he is exerting on the soil is calculated by his mass divided by the area of the bottom of his feet? And what kind of super socks and super _____ is he putting on his feet to withstand all the ________ that results from dragging his 5,400 _____ body against the road when he runs? And can he even run? And I won't even ask how he finds pants flexible enough to _________ the expansion. Now, let's explore the _______ of the two options mentioned above. Density is defined as mass divided by volume. The _____ body is made out of bones and flesh, which has a relatively set density. In option one, if the hero weighs 200 pounds all the time, then he would be _____ and flesh at normal size. When he expands to a bigger size while still weighing 200 pounds, he ___________ turns himself into a giant, fluffy teddy bear. In option two, if the hero ______ 5,400 pounds all the time, then he would be bones and flesh at 18 feet with 5,400 pounds of weight supported by two legs. The weight would be exerted on the leg bones at different angles as he _____. Bones, while hard, are not malleable, meaning they do not bend, so they break easily. The tendons would also be at risk of _______. Tall buildings stay standing because they have steel ______ and do not run and jump around in the jungle. Our hero, on the other hand, one landing at a bad angle and he's down. Assuming his bodily function is the same as any mammal's, his heart would need to pump a large amount of blood throughout his body to provide enough oxygen for him to move 5,400 pounds of body weight around. This would take tremendous energy, which he would need to _______ by consuming 27 times 3,000 calories of food every day. Now, that is roughly 150 Big Macs. 27 _____ 3,000 calculated equals 81,000 calculated slash 550 ________ equals 147. He wouldn't have time to fight crime because he would be eating all the time and working a 9-to-5 job in order to afford all the food he eats. And what about superheroes who can turn their bodies into rocks or sand? Well, everything on _____ is made out of elements. And what defines each element is the number of protons in the nucleus. That is how our periodic _____ is organized. Hydrogen has one proton, ______, two _______, lithium, three protons, and so on. The _______ component of the most common form of sand is silicon dioxide. Meanwhile, the human body ________ of 65% oxygen, 18% carbon, 10% hydrogen, and 7% of various other elements including 0.002% of silicon. In a chemical reaction, the ________ recombine to make new compounds. So, where is he getting all this _______ necessary to make the sand? Sure, we can alter elements by nuclear fusion or nuclear fission. However, nuclear fusion requires so much heat, the only natural occurrence of this process is in _____. In _____ to utilize fusion in a short ______ of time, the temperature of the area needs to be hotter than the Sun. Every innocent bystander will be burned to a crisp. Rapid _______ fission is not any better since it often results in many radioactive particles. Our hero would become a walking, talking nuclear power _____, __________ harming every person he tries to save. And do you really want the heat of the Sun or a radioactive nuclear plant inside of your body? Now, which superpower physics ______ will you explore next? ________ body size and content, super _____, flight, super strength, immortality, and ____________.

Solution


  1. essentially
  2. silicon
  3. transforms
  4. stars
  5. speed
  6. regular
  7. possibilities
  8. bones
  9. weight
  10. shoes
  11. friction
  12. bigger
  13. lesson
  14. equals
  15. helium
  16. scientist
  17. order
  18. fluffy
  19. weighs
  20. withstand
  21. moves
  22. provide
  23. table
  24. compounds
  25. human
  26. frames
  27. ultimately
  28. towering
  29. tearing
  30. protons
  31. amount
  32. calories
  33. invisibility
  34. plant
  35. shifting
  36. implies
  37. primary
  38. density
  39. earth
  40. pound
  41. times
  42. destroyed
  43. components
  44. sponge
  45. equal
  46. elements
  47. pounds
  48. nuclear
  49. consists
  50. giant

Original Text


Some superheroes can grow to the size of a building at will. That's very intimidating! But a scientist must ask where the extra material is coming from. The Law of Conservation of Mass implies that mass can neither be created nor destroyed, which means that our hero's mass will not change just because his size changes. For instance, when we bake a fluffy sponge cake, even though the resulting delicious treat is much bigger in size than the cake batter that went into the oven, the weight of the cake batter should still equal the weight of the cake plus the moisture that has evaporated. In a chemical equation, molecules rearrange to make new compounds, but all the components should still be accounted for. When our hero expands from 6 feet tall to 18 feet tall, his height triples. Galileo's Square Cube Law says his weight will be 27 - 3 times 3 times 3 equals 27 - times his regular weight since he has to expand in all three dimensions. So, when our superhero transforms into a giant, we are dealing with two possibilities. Our hero towering at 18 feet still only weighs 200 pounds, the original weight in this human form. Now, option two, our hero weighs 5,400 pounds - 200 pounds times 27 equals 5,400 pounds - when he is 18 feet tall, which means he also weighs 5,400 pounds when he is 6 feet tall. Nobody can get in the same elevator with him without the alarm going off. Now, option two seems a little more scientifically plausible, but it begs the question, how does he ever walk through the park without sinking into the ground since the pressure he is exerting on the soil is calculated by his mass divided by the area of the bottom of his feet? And what kind of super socks and super shoes is he putting on his feet to withstand all the friction that results from dragging his 5,400 pound body against the road when he runs? And can he even run? And I won't even ask how he finds pants flexible enough to withstand the expansion. Now, let's explore the density of the two options mentioned above. Density is defined as mass divided by volume. The human body is made out of bones and flesh, which has a relatively set density. In option one, if the hero weighs 200 pounds all the time, then he would be bones and flesh at normal size. When he expands to a bigger size while still weighing 200 pounds, he essentially turns himself into a giant, fluffy teddy bear. In option two, if the hero weighs 5,400 pounds all the time, then he would be bones and flesh at 18 feet with 5,400 pounds of weight supported by two legs. The weight would be exerted on the leg bones at different angles as he moves. Bones, while hard, are not malleable, meaning they do not bend, so they break easily. The tendons would also be at risk of tearing. Tall buildings stay standing because they have steel frames and do not run and jump around in the jungle. Our hero, on the other hand, one landing at a bad angle and he's down. Assuming his bodily function is the same as any mammal's, his heart would need to pump a large amount of blood throughout his body to provide enough oxygen for him to move 5,400 pounds of body weight around. This would take tremendous energy, which he would need to provide by consuming 27 times 3,000 calories of food every day. Now, that is roughly 150 Big Macs. 27 times 3,000 calculated equals 81,000 calculated slash 550 calories equals 147. He wouldn't have time to fight crime because he would be eating all the time and working a 9-to-5 job in order to afford all the food he eats. And what about superheroes who can turn their bodies into rocks or sand? Well, everything on Earth is made out of elements. And what defines each element is the number of protons in the nucleus. That is how our periodic table is organized. Hydrogen has one proton, helium, two protons, lithium, three protons, and so on. The primary component of the most common form of sand is silicon dioxide. Meanwhile, the human body consists of 65% oxygen, 18% carbon, 10% hydrogen, and 7% of various other elements including 0.002% of silicon. In a chemical reaction, the elements recombine to make new compounds. So, where is he getting all this silicon necessary to make the sand? Sure, we can alter elements by nuclear fusion or nuclear fission. However, nuclear fusion requires so much heat, the only natural occurrence of this process is in stars. In order to utilize fusion in a short amount of time, the temperature of the area needs to be hotter than the Sun. Every innocent bystander will be burned to a crisp. Rapid nuclear fission is not any better since it often results in many radioactive particles. Our hero would become a walking, talking nuclear power plant, ultimately harming every person he tries to save. And do you really want the heat of the Sun or a radioactive nuclear plant inside of your body? Now, which superpower physics lesson will you explore next? Shifting body size and content, super speed, flight, super strength, immortality, and invisibility.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
hero weighs 3
cake batter 2
feet tall 2
mass divided 2
human body 2
nuclear fusion 2
nuclear fission 2



Important Words


  1. accounted
  2. afford
  3. alarm
  4. alter
  5. amount
  6. angle
  7. angles
  8. area
  9. assuming
  10. bad
  11. bake
  12. batter
  13. bear
  14. begs
  15. bend
  16. big
  17. bigger
  18. blood
  19. bodies
  20. bodily
  21. body
  22. bones
  23. bottom
  24. break
  25. building
  26. buildings
  27. burned
  28. bystander
  29. cake
  30. calculated
  31. calories
  32. carbon
  33. change
  34. chemical
  35. coming
  36. common
  37. component
  38. components
  39. compounds
  40. conservation
  41. consists
  42. consuming
  43. content
  44. created
  45. crime
  46. crisp
  47. cube
  48. day
  49. dealing
  50. defined
  51. defines
  52. delicious
  53. density
  54. destroyed
  55. dimensions
  56. dioxide
  57. divided
  58. dragging
  59. earth
  60. easily
  61. eating
  62. eats
  63. element
  64. elements
  65. elevator
  66. energy
  67. equal
  68. equals
  69. equation
  70. essentially
  71. evaporated
  72. exerted
  73. exerting
  74. expand
  75. expands
  76. expansion
  77. explore
  78. extra
  79. feet
  80. fight
  81. finds
  82. fission
  83. flesh
  84. flexible
  85. flight
  86. fluffy
  87. food
  88. form
  89. frames
  90. friction
  91. function
  92. fusion
  93. giant
  94. ground
  95. grow
  96. hand
  97. hard
  98. harming
  99. heart
  100. heat
  101. height
  102. helium
  103. hero
  104. hotter
  105. human
  106. hydrogen
  107. immortality
  108. implies
  109. including
  110. innocent
  111. instance
  112. invisibility
  113. job
  114. jump
  115. jungle
  116. kind
  117. landing
  118. large
  119. law
  120. leg
  121. legs
  122. lesson
  123. lithium
  124. macs
  125. malleable
  126. mass
  127. material
  128. meaning
  129. means
  130. mentioned
  131. moisture
  132. molecules
  133. move
  134. moves
  135. natural
  136. normal
  137. nuclear
  138. nucleus
  139. number
  140. occurrence
  141. option
  142. options
  143. order
  144. organized
  145. original
  146. oven
  147. oxygen
  148. pants
  149. park
  150. particles
  151. periodic
  152. person
  153. physics
  154. plant
  155. plausible
  156. possibilities
  157. pound
  158. pounds
  159. power
  160. pressure
  161. primary
  162. process
  163. proton
  164. protons
  165. provide
  166. pump
  167. putting
  168. question
  169. radioactive
  170. rapid
  171. reaction
  172. rearrange
  173. recombine
  174. regular
  175. requires
  176. resulting
  177. results
  178. risk
  179. road
  180. rocks
  181. roughly
  182. run
  183. runs
  184. sand
  185. save
  186. scientifically
  187. scientist
  188. set
  189. shifting
  190. shoes
  191. short
  192. silicon
  193. sinking
  194. size
  195. slash
  196. socks
  197. soil
  198. speed
  199. sponge
  200. square
  201. standing
  202. stars
  203. stay
  204. steel
  205. strength
  206. sun
  207. super
  208. superhero
  209. superheroes
  210. superpower
  211. supported
  212. table
  213. talking
  214. tall
  215. tearing
  216. teddy
  217. temperature
  218. tendons
  219. time
  220. times
  221. towering
  222. transforms
  223. treat
  224. tremendous
  225. triples
  226. turn
  227. turns
  228. ultimately
  229. utilize
  230. volume
  231. walk
  232. walking
  233. weighing
  234. weighs
  235. weight
  236. withstand
  237. working