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Space Mysteries

Space Mysteries. Chris Egbert Jon Pruett. If you were in space…. Would this really happen?. The Idea. Hollywood films have always incorporated science in their productions. However, the question that always seems to arise is, how accurate are these scientific features?

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Space Mysteries

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  1. Space Mysteries • Chris Egbert • Jon Pruett

  2. If you were in space… Would this really happen?

  3. The Idea • Hollywood films have always incorporated science in their productions. However, the question that always seems to arise is, how accurate are these scientific features? • The clip shown, from the movie “Mission to Mars” depicts a body that is instantly frozen in space. Using knowledge acquired in Heat Transfer class, our group will demonstrate the accuracy of the scene.

  4. Known Values • G=1380 W/m2 (solar flux near earth) • skin=0.97 • skin=0.62 • kskin=0.37 W/m.K • =1000 kg/m2 (assume water) • Cp=4201 J/kg.K (assume water) • T=0 K • T0=310 K • D= 0.2 m (assume head only)

  5. Equations •  Ts4 As=G Ac Ts=(G/4)1/4 space = 250k = -23ºC •  (Ts4 - T4)= Ts- T h=  Ts3 =0.86 W/m2.k • Bi=hD/6k =0.08 (use lumped) • T (273)=Cp/h . V/As ln (T-To/ T-T) =5.75 hrs. Disproved

  6. Conclusion • This is one of the many science flaws found in Hollywood film. • Tune in next semester for another thrilling… SPACE MYSTERIES

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