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Biology
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Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

Subject:
Biology
Life Science
Material Type:
Full Course
Date Added:
07/18/2021
Biology, The Chemistry of Life, The Chemical Foundation of Life, Atoms, Isotopes, Ions, and Molecules: The Building Blocks
Conditional Remix & Share Permitted
CC BY-NC
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By the end of this section, you will be able to:Define matter and elementsDescribe the interrelationship between protons, neutrons, and electronsCompare the ways in which electrons can be donated or shared between atomsExplain the ways in which naturally occurring elements combine to create molecules, cells, tissues, organ systems, and organisms

Subject:
Applied Science
Biology
Life Science
Material Type:
Module
Author:
OpenStax College
Date Added:
07/18/2021
Flight and Orbital Mechanics
Conditional Remix & Share Permitted
CC BY-NC-SA
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Course Contents 1. Turning performance (three dimensional equations of motion, coordinate systems, Euler angles, transformation matrices)
2. Airfield performance (take-off and landing)
3. Unsteady climb and descent (including minimum time to climb problem)
4. Cruise flight and transport performance
5. Equations of motion with a wind gradient present
6. Equations of motion applied to various phases of space flight
7. Launch, Vertical flight, delta-V budget, burn out height, staging
8. Gravity perturbations to satellite orbits, J2 effect for low earth orbit satellites, J2,2 effect for Geostationary Earth Orbit sattelites leading to contribution in V budget
9. Patched conics approach for interplanetary flight, gravity assist effect / options for change of excess velocity (2d, 3d), Launch, in orbit insertion.
Study Goals 1. Integrate fundamental disciplines (aero, power and propulsion, mechanics..) to describe the kinematics of aerospace vehicles satisfying real world constraints
2. Derive equations of motion for elementary flight and mission phases (climb, turn, cruise, take-off, launch, orbit)
3. Derive analytical expressions for optimal performance (steepest turn, Breguet Range, patched conics, J2, maneuvers )
4. Determine pros/cons of multi-stage launchers.
5. Assess sun lighting conditions on a satellite.
6. Determine the influence of wind (gradient) on aircraft motion and performance.
7. Develop the theory to describe an interplanetary trajectory as a succession of two-body problems, and apply this concept to real missions.

Subject:
Applied Science
Material Type:
Full Course
Provider:
Delft University of Technology
Provider Set:
Delft University OpenCourseWare
Author:
Dr.ir. M. Voskuijl
Date Added:
07/14/2021
Lights Out!
Read the Fine Print
Educational Use
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This lesson introduces the concept of electricity by asking students to imagine what their life would be like without electricity. Two main forms of electricity, static and current, are introduced. Students learn that electrons can move between atoms, leaving atoms in a charged state.

Subject:
Applied Science
Engineering
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Daria Kotys-Schwartz
Denise Carlson
Malinda Schaefer Zarske
Date Added:
09/18/2014
Rocket Propulsion, Fall 2005
Conditional Remix & Share Permitted
CC BY-NC-SA
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Chemical rocket propulsion systems for launch, orbital, and interplanetary flight. Modeling of solid, liquid-bipropellant, and hybrid rocket engines. Thermochemistry, prediction of specific impulse. Nozzle flows including real gas and kinetic effects. Structural constraints. Propellant feed systems, turbopumps. Combustion processes in solid, liquid, and hybrid rockets. Cooling; heat sink, ablative, and regenerative.

Subject:
Applied Science
Engineering
Material Type:
Full Course
Provider:
M.I.T.
Provider Set:
M.I.T. OpenCourseWare
Author:
Martinez-Sanchez, Manuel
Date Added:
01/01/2005