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Jeff Elhai Center for the Study of Biological Complexity Virginia Commonwealth University ElhaiJ@VCU.Edu http://www.people.vcu.edu/~elhaij 804-828-0794
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Bicycle 101
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The basic principle, as simply as possible
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Bicycle 101 1866 – Pierre Lallement invents the Velocipede A historical perspective
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Bicycle 101 Angular momentum L = m v r Key facts
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Bicycle 101 Importance of acting like a cyclist
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Bicycle 101 The seven steps of the bicycle method 1.Determine the direction you wish to go 2.Determine whether there is a paved surface 3.Point the bicycle in the proper direction 4.Pedal furiously 5.Determine how far you have moved 6.Determine what change in direction is required 7.Call a cab Easily learned steps of the method
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Bicycle 101
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Bicycle 101
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Science 101
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The Lives of the Scientist
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Science 101 Our role
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Science 101 Our role
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Science 101 Our role
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Science 101 Our role Science is the belief in the ignorance of experts. - Richard Feynman A process,... not a body of facts
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Science 101 Our role Science is the belief in the ignorance of experts. - Richard Feynman A process,... not a body of facts Once you learn it… it's yours for life
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Importance of visualization in science
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Visualizing Energy
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High Energy State Low Energy State
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High Energy State Visualizing Energy (cheap refrigerator magnet) Low Energy State
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High Energy State Visualizing Energy (cheap refrigerator magnet) Low Energy State
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Visualizing Energy High Energy State Low Energy State
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Visualizing Energy High Energy State Low Energy State
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High Energy State Visualizing Energy Low Energy State
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High Energy State Visualizing Energy Low Energy State
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Visualizing Energy
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High Energy State Low Energy State
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Visualizing Energy High Energy State Low Energy State What are the components? …for other forms of energy?
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Visualizing Chemical Energy Life: The play of water Water: The play of oxygen H H O H2OH2O Eight electrons
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Visualizing Chemical Energy Life: The play of water Water: The play of oxygen H H O H2OH2O - + + Low Energy State Eight electrons
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Visualizing Chemical Energy H H O H2OH2O - + + Low Energy State O2O2 H2H2 H2H2 High Energy State
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Visualizing Chemical Energy H H O H2OH2O - + + Low Energy State O2O2 H2H2 H2H2 High Energy State
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Visualizing Chemical Energy H H O H2OH2O - + + Low Energy State O2O2 High Energy State
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Visualizing Chemical Energy H H O H2OH2O - + + Low Energy State O2O2 High Energy State H2H2 H2H2
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Visualizing Photosynthesis
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Low Energy State How can light be put to work?*
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Visualizing Photosynthesis How can light be put to work?*
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Visualizing Photosynthesis
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http://www.bsharp.org/physics/swings Visualizing Photosynthesis Sympathetic vibration - resonance
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http://www.bsharp.org/physics/swings Visualizing Photosynthesis Sympathetic vibration - resonance 0 0 0
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Visualizing Photosynthesis Sympathetic vibration - resonance Distance from you Force on swing Push at same frequency Transfer of energy through resonance...if frequencies match Time
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Visualizing Photosynthesis Sympathetic vibration - resonance Distance from you Force on swing Push at same frequency Push at twice frequency Push at half frequency
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Visualizing Photosynthesis Sympathetic vibration - resonance Press silently Bang then let go Transfer of energy through resonance...if frequencies match
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Visualizing Photosynthesis Sympathetic vibration - resonance
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Visualizing Photosynthesis Sympathetic vibration - resonance Infrared (low frequency, low energy) (high frequency, high energy) Ultraviolet Transfer of energy through resonance...if frequencies match
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Visualizing Photosynthesis Sympathetic vibration - resonance Transfer of energy through resonance...if frequencies match Which color light will be absorbed (put to use)? Chlorophyll
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Visualizing Photosynthesis Sympathetic vibration - resonance Transfer of energy through resonance...if frequencies match Which color light will be absorbed (put to use)? Carotenoids
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Low Energy State Visualizing Photosynthesis
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High Energy State Low Energy State
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Visualizing Photosynthesis High Energy State Low Energy State
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Visualizing Photosynthesis High Energy State Low Energy State CO2CO2 Glucose Fate of glucose?
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Visualizing Photosynthesis High Energy State Low Energy State Fate of chlorophyll? H H O H2OH2O - + + Not as Low Energy State
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Visualizing Photosynthesis High Energy State Low Energy State Fate of chlorophyll? H H O H2OH2O - + + Not as Low Energy State O2O2
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Visualizing Photosynthesis High Energy State Low Energy State How to test this? H H O H2OH2O - + + Not as Low Energy State O2O2 Glucose
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Visualizing Photosynthesis
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Visualizing Human Photosynthesis
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Visualizing Science in the Classroom
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Jeff Elhai Center for the Study of Biological Complexity Virginia Commonwealth University ElhaiJ@VCU.Edu http://www.people.vcu.edu/~elhaij 804-828-0794
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