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/ MacWorld 1998 May / Macworld (1998-05).dmg / Shareware World / Maths & Science / Newton's Aquarium 1.0 Demo 68K / Sample Universes / Stationery / Escape Velocity / Escape Velocity
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Text File  |  1998-03-02  |  5.9 KB  |  272 lines  |  [NAUn/NeAq]
  1. <APP>Newton's Aquarium</APP>
  2. <VER>1.0</VER>
  3.  
  4. <UNI>
  5. <G>6.67259e-11</G>
  6. <DISTEXP>2</DISTEXP>
  7.  
  8. <DIMENSIONS>2</DIMENSIONS>
  9.  
  10. <XL>-4.49137e+08</XL>
  11. <XU>2.28979e+09</XU>
  12. <YL>-1.36946e+09</YL>
  13. <YU>1.36946e+09</YU>
  14. <ZL>-1.36946e+09</ZL>
  15. <ZU>1.36946e+09</ZU>
  16.  
  17. <TIMESTEP>14400</TIMESTEP>
  18. <PLOTRATE>FASTEST</PLOTRATE>
  19.  
  20. <DETECTCOLLISIONS>TRUE</DETECTCOLLISIONS>
  21.  
  22. <ANTIDRIFTON>FALSE</ANTIDRIFTON>
  23.  
  24. <WNDZOOMSTATE>STD</WNDZOOMSTATE>
  25. <WNDLEFT>65</WNDLEFT>
  26. <WNDTOP>75</WNDTOP>
  27. <WNDWIDTH>345</WNDWIDTH>
  28. <WNDHEIGHT>360</WNDHEIGHT>
  29.  
  30. <BGRED>0</BGRED>
  31. <BGGREEN>0</BGGREEN>
  32. <BGBLUE>0</BGBLUE>
  33.  
  34. <SHOWAXES>TRUE</SHOWAXES>
  35. <AXESLABELSON>TRUE</AXESLABELSON>
  36. <AXESRED>32767</AXESRED>
  37. <AXESGREEN>32767</AXESGREEN>
  38. <AXESBLUE>32767</AXESBLUE>
  39.  
  40. <SHOWGRID>TRUE</SHOWGRID>
  41. <GRIDSNAPTO>FALSE</GRIDSNAPTO>
  42. <GRIDX>3.01282e+08</GRIDX>
  43. <GRIDY>3.01282e+08</GRIDY>
  44. <GRIDRED>32767</GRIDRED>
  45. <GRIDGREEN>32767</GRIDGREEN>
  46. <GRIDBLUE>32767</GRIDBLUE>
  47.  
  48. <SHOWCENTMASS>FALSE</SHOWCENTMASS>
  49. <CENTMASSTRACEON>TRUE</CENTMASSTRACEON>
  50. <CENTMASSTRACERED>32767</CENTMASSTRACERED>
  51. <CENTMASSTRACEGREEN>32767</CENTMASSTRACEGREEN>
  52. <CENTMASSTRACEBLUE>32767</CENTMASSTRACEBLUE>
  53.  
  54. <TRACEON>TRUE</TRACEON>
  55.  
  56. <SHOWVELVECTOR>FALSE</SHOWVELVECTOR>
  57. <VELVECTORSSCALE>200000</VELVECTORSSCALE>
  58. <SHOWACCVECTOR>TRUE</SHOWACCVECTOR>
  59. <ACCVECTORSSCALE>4e+10</ACCVECTORSSCALE>
  60. <SHOWFORCEVECTOR>FALSE</SHOWFORCEVECTOR>
  61. <FORCEVECTORSSCALE>7e+07</FORCEVECTORSSCALE>
  62.  
  63. <COMMENTSLEN>503</COMMENTSLEN>
  64. <COMMENTS>CONCEPT:
  65. This universe demonstrates the effect of initial velocity on orbit.
  66.  
  67. ACTIVITY:
  68. Four moons are positioned approximately the same horizontal distance away from a planet.  The initial upward velocity for each moon increases from the lowest moon up.  Animate the system forward and observe what happens.
  69.  
  70. Q&A:
  71. 1.  What are the basic shapes of the resulting orbits?
  72. 2.  What role did the initial velocities play in determining these orbits.  What about the initial positions?
  73.  
  74. ALSO SEE:
  75. Orbit Layers</COMMENTS>
  76. <SHOWCOMMENTS>TRUE</SHOWCOMMENTS>
  77.  
  78. <BODY>
  79. <MASS>5.98e+24</MASS>
  80. <RADIUS>6.378e+06</RADIUS>
  81.  
  82. <POSX>0</POSX>
  83. <POSY>0</POSY>
  84. <POSZ>0</POSZ>
  85. <POSFIXED>FALSE</POSFIXED>
  86.  
  87. <VELX>0</VELX>
  88. <VELY>0</VELY>
  89. <VELZ>0</VELZ>
  90.  
  91. <TITLELEN>6</TITLELEN>
  92. <TITLE>Planet</TITLE>
  93.  
  94. <TEXTURE>2</TEXTURE>
  95.  
  96. <TRACEON>FALSE</TRACEON>
  97. <TRACERED>32767</TRACERED>
  98. <TRACEGREEN>0</TRACEGREEN>
  99. <TRACEBLUE>0</TRACEBLUE>
  100.  
  101. <SHOWVELVECTOR>FALSE</SHOWVELVECTOR>
  102. <VELVECTORRED>0</VELVECTORRED>
  103. <VELVECTORGREEN>32767</VELVECTORGREEN>
  104. <VELVECTORBLUE>0</VELVECTORBLUE>
  105.  
  106. <SHOWACCVECTOR>FALSE</SHOWACCVECTOR>
  107. <ACCVECTORRED>0</ACCVECTORRED>
  108. <ACCVECTORGREEN>0</ACCVECTORGREEN>
  109. <ACCVECTORBLUE>32767</ACCVECTORBLUE>
  110.  
  111. <SHOWFORCEVECTOR>FALSE</SHOWFORCEVECTOR>
  112. <FORCEVECTORRED>43253</FORCEVECTORRED>
  113. <FORCEVECTORGREEN>14417</FORCEVECTORGREEN>
  114. <FORCEVECTORBLUE>0</FORCEVECTORBLUE>
  115. </BODY>
  116.  
  117. <BODY>
  118. <MASS>730</MASS>
  119. <RADIUS>1.738e+06</RADIUS>
  120.  
  121. <POSX>-3e+08</POSX>
  122. <POSY>0</POSY>
  123. <POSZ>0</POSZ>
  124. <POSFIXED>FALSE</POSFIXED>
  125.  
  126. <VELX>0</VELX>
  127. <VELY>1600</VELY>
  128. <VELZ>0</VELZ>
  129.  
  130. <TITLELEN>6</TITLELEN>
  131. <TITLE>Moon 1</TITLE>
  132.  
  133. <TEXTURE>3</TEXTURE>
  134.  
  135. <TRACEON>TRUE</TRACEON>
  136. <TRACERED>32767</TRACERED>
  137. <TRACEGREEN>0</TRACEGREEN>
  138. <TRACEBLUE>0</TRACEBLUE>
  139.  
  140. <SHOWVELVECTOR>TRUE</SHOWVELVECTOR>
  141. <VELVECTORRED>0</VELVECTORRED>
  142. <VELVECTORGREEN>32767</VELVECTORGREEN>
  143. <VELVECTORBLUE>0</VELVECTORBLUE>
  144.  
  145. <SHOWACCVECTOR>TRUE</SHOWACCVECTOR>
  146. <ACCVECTORRED>0</ACCVECTORRED>
  147. <ACCVECTORGREEN>0</ACCVECTORGREEN>
  148. <ACCVECTORBLUE>32767</ACCVECTORBLUE>
  149.  
  150. <SHOWFORCEVECTOR>TRUE</SHOWFORCEVECTOR>
  151. <FORCEVECTORRED>43253</FORCEVECTORRED>
  152. <FORCEVECTORGREEN>14417</FORCEVECTORGREEN>
  153. <FORCEVECTORBLUE>0</FORCEVECTORBLUE>
  154. </BODY>
  155.  
  156. <BODY>
  157. <MASS>730</MASS>
  158. <RADIUS>1.738e+06</RADIUS>
  159.  
  160. <POSX>-3e+08</POSX>
  161. <POSY>-1e+07</POSY>
  162. <POSZ>0</POSZ>
  163. <POSFIXED>FALSE</POSFIXED>
  164.  
  165. <VELX>0</VELX>
  166. <VELY>1400</VELY>
  167. <VELZ>0</VELZ>
  168.  
  169. <TITLELEN>6</TITLELEN>
  170. <TITLE>Moon 2</TITLE>
  171.  
  172. <TEXTURE>3</TEXTURE>
  173.  
  174. <TRACEON>TRUE</TRACEON>
  175. <TRACERED>4260</TRACERED>
  176. <TRACEGREEN>16383</TRACEGREEN>
  177. <TRACEBLUE>4664</TRACEBLUE>
  178.  
  179. <SHOWVELVECTOR>TRUE</SHOWVELVECTOR>
  180. <VELVECTORRED>0</VELVECTORRED>
  181. <VELVECTORGREEN>32767</VELVECTORGREEN>
  182. <VELVECTORBLUE>0</VELVECTORBLUE>
  183.  
  184. <SHOWACCVECTOR>TRUE</SHOWACCVECTOR>
  185. <ACCVECTORRED>0</ACCVECTORRED>
  186. <ACCVECTORGREEN>0</ACCVECTORGREEN>
  187. <ACCVECTORBLUE>32767</ACCVECTORBLUE>
  188.  
  189. <SHOWFORCEVECTOR>TRUE</SHOWFORCEVECTOR>
  190. <FORCEVECTORRED>43253</FORCEVECTORRED>
  191. <FORCEVECTORGREEN>14417</FORCEVECTORGREEN>
  192. <FORCEVECTORBLUE>0</FORCEVECTORBLUE>
  193. </BODY>
  194.  
  195. <BODY>
  196. <MASS>730</MASS>
  197. <RADIUS>1.738e+06</RADIUS>
  198.  
  199. <POSX>-3e+08</POSX>
  200. <POSY>-2e+07</POSY>
  201. <POSZ>0</POSZ>
  202. <POSFIXED>FALSE</POSFIXED>
  203.  
  204. <VELX>0</VELX>
  205. <VELY>1200</VELY>
  206. <VELZ>0</VELZ>
  207.  
  208. <TITLELEN>6</TITLELEN>
  209. <TITLE>Moon 3</TITLE>
  210.  
  211. <TEXTURE>3</TEXTURE>
  212.  
  213. <TRACEON>TRUE</TRACEON>
  214. <TRACERED>4171</TRACERED>
  215. <TRACEGREEN>2294</TRACEGREEN>
  216. <TRACEBLUE>16383</TRACEBLUE>
  217.  
  218. <SHOWVELVECTOR>TRUE</SHOWVELVECTOR>
  219. <VELVECTORRED>0</VELVECTORRED>
  220. <VELVECTORGREEN>32767</VELVECTORGREEN>
  221. <VELVECTORBLUE>0</VELVECTORBLUE>
  222.  
  223. <SHOWACCVECTOR>TRUE</SHOWACCVECTOR>
  224. <ACCVECTORRED>0</ACCVECTORRED>
  225. <ACCVECTORGREEN>0</ACCVECTORGREEN>
  226. <ACCVECTORBLUE>32767</ACCVECTORBLUE>
  227.  
  228. <SHOWFORCEVECTOR>TRUE</SHOWFORCEVECTOR>
  229. <FORCEVECTORRED>43253</FORCEVECTORRED>
  230. <FORCEVECTORGREEN>14417</FORCEVECTORGREEN>
  231. <FORCEVECTORBLUE>0</FORCEVECTORBLUE>
  232. </BODY>
  233.  
  234. <BODY>
  235. <MASS>730</MASS>
  236. <RADIUS>1.738e+06</RADIUS>
  237.  
  238. <POSX>-3e+08</POSX>
  239. <POSY>-3e+07</POSY>
  240. <POSZ>0</POSZ>
  241. <POSFIXED>FALSE</POSFIXED>
  242.  
  243. <VELX>0</VELX>
  244. <VELY>1000</VELY>
  245. <VELZ>0</VELZ>
  246.  
  247. <TITLELEN>6</TITLELEN>
  248. <TITLE>Moon 4</TITLE>
  249.  
  250. <TEXTURE>3</TEXTURE>
  251.  
  252. <TRACEON>TRUE</TRACEON>
  253. <TRACERED>15903</TRACERED>
  254. <TRACEGREEN>16383</TRACEGREEN>
  255. <TRACEBLUE>1966</TRACEBLUE>
  256.  
  257. <SHOWVELVECTOR>TRUE</SHOWVELVECTOR>
  258. <VELVECTORRED>0</VELVECTORRED>
  259. <VELVECTORGREEN>32767</VELVECTORGREEN>
  260. <VELVECTORBLUE>0</VELVECTORBLUE>
  261.  
  262. <SHOWACCVECTOR>TRUE</SHOWACCVECTOR>
  263. <ACCVECTORRED>0</ACCVECTORRED>
  264. <ACCVECTORGREEN>0</ACCVECTORGREEN>
  265. <ACCVECTORBLUE>32767</ACCVECTORBLUE>
  266.  
  267. <SHOWFORCEVECTOR>TRUE</SHOWFORCEVECTOR>
  268. <FORCEVECTORRED>43253</FORCEVECTORRED>
  269. <FORCEVECTORGREEN>14417</FORCEVECTORGREEN>
  270. <FORCEVECTORBLUE>0</FORCEVECTORBLUE>
  271. </BODY>
  272. </UNI>