Variables 　 Independent Variable: a quantity that you will vary and control E. G. angle of attack, chamber pressure or temperature, coefficient in algorithm, luminosity, gain O Parameter: a quantity that is set or otherwise determined

BASIS FOR MEASUREMENT Whatever exists, exists in some amount Our goals: Measure the appropriate quantity, Measure with the appropriate accuracy, to allow us to assess our hypothesis Some questions:

Topics Grading rubrics for written proposals Content Communication Grading distribution between content and communication Dealing with multiple graders Division of work within teams

Audience analysis elements Know four key facts about readers and listeners. Consider the level of technical expertise of your audience. Understand why they are reading. then... plan communication strategy and information organization

Why be concerned about ethics? Science and engineering are professions whose integrity rely on the participants behaving in ethical ways. Unethical behavior can lead to loss of life, property, or other resources. Individuals can also lose respect and their reputation

TODAY'S TOPICS Status check, photo opportunity Course goal and course learning objectives Some comments on the research process The research“catechism” The 16.62x cycle (16.62x Syllabus) Our thoughts on progress and achievement

Lecture D34 Coupled Oscillators Spring-Mass System(Undamped/Unforced)

Solution General solution x(t)= A cos wnt +B sin wnt or, x(t)=Csin(wnt+φ) Initial conditions

In lecture D28, we derived three basic relationships embodying Kepler's laws: Equation for the orbit trajectory

Outline Review of Equations of Motion Rotational Motion Equations of Motion in Rotating coordinates Euler Equations Example: Stability of Torque Free Motion Gyroscopic Motion Euler Angles Steady Precession Steady Precession with M=0 MIT