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Science of Superheroes

Science of Superheroes. Invisibility. Invisible Woman [Fantastic Four]. Retro-reflective material. http://www.youtube.com/watch?v=PD83dqSfC0Y. Mutated DNA. The Incredible Hulk. DNA & genetic engineering. Where do they come from?. Where do superheroes come from?. The Great Depression

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Science of Superheroes

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  1. Science of Superheroes

  2. Invisibility Invisible Woman [Fantastic Four] • Retro-reflective material http://www.youtube.com/watch?v=PD83dqSfC0Y

  3. Mutated DNA • The Incredible Hulk • DNA & genetic engineering

  4. Where do they come from?

  5. Where do superheroes come from? • The Great Depression • Magic and Legend • Pulp writers

  6. Q: How many pulp writers does it take to change a lightbulb? • A: The history of the lightbulb is a fantastic tale with humble beginnings in the quiet town of Menlo Park, New Jersey in 1879. While much is known about the mechanics of how the device works, the method of changing…

  7. Superman: The Man of Steel, The Metropolis Marvel, Big Blue, The Man of Tomorrow… • The Flash: The Scarlet Speedster, Sultan of Speed, the Champion of the foot race…

  8. Where do superheroes come from? • The Great Depression • Magic and Legend • Pulp writers • SCIENCE

  9. The Flash • The more popular version is Barry Allen as the Flash • Formerly a policeman/scientist, Barry gained super speed after accidentally being doused in a mix of chemicals from his lab. • Gained the ability of super speed! Can run at near light [and occasionally, luminal] speeds

  10. WARNING • The following slide may contain PHYSICS

  11. Newton’s 1st Law • An object in motion will stay in motion unless acted upon by an outside force • http://www.youtube.com/watch?v=_d8ROhH3_vs

  12. Newton’s 2nd Law • The sum of the forces acting on an object will change in the object’s velocity • F=ma • F is the net force • m is the object’s mass • a is the object’s acceleration

  13. The Flash vs Captain Cold • The Flash on ice • No forces acting on him • F=0 • F=ma • 0=ma • a=0 • No change in direction!

  14. Flash vs Tractor Beam • A Tractor beam is pulling the flash backward with 300N of force. How much will this slow down the Scarlett Speedster? (70kg=155lbs) • F=ma • -300=70a • a=-4.3m/s^2 • This is would only slow him down from running at 223m/s to 219m/s in one second!

  15. Well, Science with some exceptions…. • Say the Flash wanted to go for a jog at 1% the speed of light starting from rest in one second • He would need to get from 0 to 3 million m / s • His acceleration would have to be 3 million m/s^s

  16. F=ma • F=70*3million • F=210 million Newtons

  17. The average human can withstand only about 10g’s, or 10 thousand Newtons of force You 10,000 N The Flash 210,000,000 N The Flash must also be able to withstand EXTREME forces!

  18. Energy • Energy cannot be created or destroyed in our universe • Two classes of energy, Potential and Kinetic • Eo=Ef • Chemical bonds store energy, and release it to our bodies when they are broken

  19. Energy Consumption • In order to have energy to move, you must eat things! • How many burgers would the Flash have to eat to run at 1% speed of light?

  20. Kinetic Energy = .5m*v^2 Where m=mass=70kg, v=velocity=3*10^6m/s. So, E=.5*70*(3*10^6)^2 E=315 trillion Joules = 75 trillion calories!

  21. To get the energy, the Flash would need to eat 150 Million cheese burgers at 500 nutritional calories each for every second!

  22. Newton’s 3rd Law • For every force acting on an object, there is an equal and opposite force of the same kind acting back • Forces come in pairs

  23. Superman • Debuted in 1938, Superman #1 • After discovering his planet was doomed to explode, Jor-el puts his son in a rocket and spirits him away from certain doom. • This child grows up to be the Man of Steel, Superman. • Originally, only had super strength due to Kryptonian gravity

  24. Leaping a Tall Building • Superman could leap 1/8th of a mile into the air • A tall building was about 660ft (1/8th mi) The only force acting on him during this flight is gravity! So we already know he’s decelerating at 32ft/sec^2

  25. Leaping a Tall Building • Using some rearrangement of the definition of acceleration, we get • Vo^2=2gh • g=32ft/sec^2, h=660ft, • Vo^2=32*660 • Vo=205ft/sec, or 140mi/hr!

  26. Leaping a Tall Building • Superman would need to accelerate at 800ft/sec^2 in the .25sec it would take to push off of the ground • F=ma • F=100*800=5,600 lbs! Is this reasonable?

  27. Earth’s gravity compared to Krypton’s is .07g!

  28. Magneto • Appeared in the first X-men comic in 1963 • Erick Lehsherr was born to a jewish family that was taken to Auschwitz • During this time, his parents were killed. In a rage, he destroyed the city by uncontrollably hurling metal around, discovering ability to control magnetic fields

  29. Could it happen? • http://www.youtube.com/watch?v=etPXBm0zRvM&playnext=1&list=PL7278B6DD619C3A79&feature=results_video

  30. Using his powers for good • Nanomedicine uses magnetic nanoparticles to target diseases!

  31. Wonder Woman • Born to a planet of Amazon women, Wonder Woman was sent to earth to bring the ideas of Peace, Love, and Equality • Firs appeared in All Star Comics #8, 1941 • Uses indestructible bracelets, lasso of truth

  32. Amazonian Bracelets • Can deflect bullets • Make ‘sonic clang’ • Help her strength and stability using ions

  33. Does it work? • Ion bracelets designed to ‘enhance balance and stability • Aligns ions in the body to create a more pure flow of energy

  34. Lie detectors • Some are currently in use! • Sadly, they are beatable. • Current research into MRI scanning the brain To overcome limitations

  35. Spiderman • First appeared in 1962, Amazing Fantasy#15 • Peter Parker was bitten by a radioactive spider, combining his genetics • After his uncle was killed, he realized that with great power comes great responsibility

  36. Could it happen? • http://www.youtube.com/watch?v=pmtxiQCl6rg&feature=related

  37. Spider feet • The tiny hairs fit into a surface and make Van der Waals chemical bonds with the surface

  38. Gecko Feet

  39. 210lbs from 1sqInch!!

  40. Swinging • Remember, F=ma Here, Spidey isn’t moving, so T-mg=ma=0, T=mg

  41. Swinging • For a swinging object though, the acceleration is always towards the center with a value of a=v^2/r v=velocity r=radius from pivot

  42. Swinging • If Spidey weighs 73 kg (160lbs), and he swings from a line of 61m (200ft) at a speed of 22m/s (50mi/hr), could the rope hold? • a=v^2/r = 22^2/61= 7.93m/sec^2

  43. Swinging • F=ma • T-mg=ma • T=ma+mg • T=73*7.93+73*10 • T=1300N, about 300lbs of force!

  44. Can it work? • According to 2002 Smithsonian, a Braided spider-silk rope the diameter of a pencil could stop a fighter jet landing on an aircraft carrier!

  45. How to Save a Life • Why does Spiderman have a little bit of give when he catches someone?

  46. How to save a Life • Why does Spiderman have a little bit of give when he catches someone? • If he decelerates them too fast [impulse], the results could be tragic!

  47. The Death of Gwen Stacy • Using the same ideas from superman’s jump, Vf^2= 2gh h=300ft for Brooklyn bridge to where she is caught g=32ft/sec^2 Gwen is falling at nearly 95mi/hr!

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