علم الكون والفلك | Cosmology & astronomy — مقرر…
مِسبار · مقرر جامعي مجاني
Cosmology & astronomy
تعلم علم الكون والفلك (Cosmology & astronomy) مجانًا عبر 4 وحدات و110 فيديو تعليميًا، بإجمالي نحو 16 ساعة، ضمن مكتبة مِسبار الجامعية.
It's a great, big universe out there. In this section of Khan Academy, you'll learn about the brain-bending vastness of time and space. We go from plate tectonics here on Earth to entire galaxies and beyond.
- 4 وحدات.
- 110 فيديو.
- نحو 16 ساعة مشاهدة.
- المستوى: college.
ابدأ مشاهدة المقرر داخل مكتبة مِسبار
التخصصات المرتبطة بالمقرر
- هندسة الطيران والفضاء (Aerospace Engineering)
- الفيزياء (Physics)
- الفلك وعلوم الفضاء (Astronomy & Space Science)
- تعليم العلوم (Science Education)
وحدات ودروس المقرر
1. Scale of the universe
41 فيديو تعليمي.
موضوعات ودروس الوحدة
- Scale of the large
- Scale of the small
- Scale of earth and sun
- Scale of solar system
- Scale of distance to closest stars
- Scale of the galaxy
- Intergalactic scale
- Hubble image of galaxies
- Cosmological time scale 1
- Cosmological time scale 2
- Introduction to light
- Four fundamental forces
- Light and the luminiferous ether
- Potential ways to detect an ether wind
- Michelson–Morley Experiment introduction
- Starting to set up a Newtonian path–time diagram
- Visualizing multiple Newtonian path–time diagrams
- Galilean transformation and contradictions with light
- Introduction to special relativity and Minkowski spacetime diagrams
- Measuring time in meters in Minkowski spacetime
- Angle of x' axis in Minkowski spacetime
- Introduction to the Lorentz transformation
- Evaluating a Lorentz transformation
- Algebraically manipulating Lorentz transformation
- Lorentz transformation derivation part 1
- Deriving Lorentz transformation part 2
- Lorentz transformation derivation part 3
- Lorentz transformation for change in coordinates
- Einstein velocity addition formula derivation
- Applying Einstein velocity addition
- Finding an in-between frame of reference
- Calculating neutral velocity
- Time dilation
- Big bang introduction
- Radius of observable universe
- Radius of observable universe (correction)
- Red shift
- Cosmic background radiation
- Cosmic background radiation 2
- Hubble's law
- A universe smaller than the observable
2. Stars, black holes and galaxies
21 فيديو تعليمي.
موضوعات ودروس الوحدة
- Birth of stars
- Accreting mass due to gravity simulation
- Becoming a red giant
- White and black dwarfs
- Star field and nebula images
- Lifecycle of massive stars
- Supernova (supernovae)
- Supernova clarification
- Black holes
- Supermassive black holes
- Quasars
- Quasar correction
- Galactic collisions
- Parallax in observing stars
- Stellar parallax
- Stellar distance using parallax
- Stellar parallax clarification
- Parsec definition
- Cepheid variables 1
- Why cepheids pulsate
- Why gravity gets so strong near dense objects
3. Earth geological and climatic history
23 فيديو تعليمي.
موضوعات ودروس الوحدة
- Plate tectonics: Difference between crust and lithosphere
- Structure of the earth
- Plate tectonics: Evidence of plate movement
- Plate tectonics: Geological features of divergent plate boundaries
- Plate tectonics: Geological features of convergent plate boundaries
- Plates moving due to convection in mantle
- Hawaiian islands formation
- Pangaea
- Compositional and mechanical layers of the earth
- How we know about the earth's core
- Seismic waves
- Why S-waves only travel in solids
- Refraction of seismic waves
- The mohorovicic seismic discontinuity
- Seasons aren't dictated by closeness to sun
- How Earth's tilt causes seasons
- Are southern hemisphere seasons more severe?
- Milankovitch cycles precession and obliquity
- Precession causing perihelion to happen later
- What causes precession and other orbital changes
- Apsidal precession (perihelion precession) and Milankovitch cycles
- Intro to Moon phases
- Solar and lunar eclipses
4. Life on earth and in the universe
25 فيديو تعليمي.
موضوعات ودروس الوحدة
- Earth formation
- Beginnings of life
- Ozone layer and eukaryotes show up in the Proterozoic eon
- Biodiversity flourishes in Phanerozoic eon
- First living things on land clarification
- Human evolution overview
- Understanding calendar notation
- Correction calendar notation
- Development of agriculture and writing
- Firestick farming in early Australia
- Collective learning
- Thomas Malthus and population growth
- Agriculture and human population
- Energy inputs for tilling a hectare of land
- Random predictions for 2060
- Chronometric revolution
- Carbon 14 dating 1
- Carbon 14 dating 2
- Potassium-argon (K-Ar) dating
- K-Ar dating calculation
- Detectable civilizations in our galaxy 1
- Detectable civilizations in our galaxy 2
- Detectable civilizations in our galaxy 3
- Detectable civilizations in our galaxy 4
- Detectable civilizations in our galaxy 5
مقررات مرتبطة
- حساب المثلثات | Trigonometry
- ما قبل التفاضل والتكامل | Precalculus
- التفاضل والتكامل AP (AB) | AP®︎ Calculus AB
- التفاضل والتكامل AP (BC) | AP®︎ Calculus BC
- التفاضل والتكامل متعدد المتغيرات | Multivariable calculus
- المعادلات التفاضلية | Differential equations
المصدر والحقوق
المحتوى الأصلي المرخص: أكاديمية خان. تقوم مِسبار بالفهرسة والتنظيم حسب التخصص، وتعرض الفيديوهات المرخصة غير التجارية داخل مكتبة مجانية مستقلة.