Courses tagged with "Class2Go" (28)

Videos attempting to grasp a little bit about our Universe (many of the topics associated with "Big History"). 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. Big Bang Introduction. Radius of Observable Universe. (Correction) Radius of Observable Universe. Red Shift. Cosmic Background Radiation. Cosmic Background Radiation 2. Cosmological Time Scale 1. Cosmological Time Scale 2. Four Fundamental Forces. Birth of Stars. Becoming a Red Giant. White and Black Dwarfs. A Universe Smaller than the Observable. Star Field and Nebula Images. Parallax in Observing Stars. Stellar Parallax. Stellar Distance Using Parallax. Stellar Parallax Clarification. Parsec Definition. Hubble's Law. Lifecycle of Massive Stars. Supernova (Supernovae). Supernova clarification. Black Holes. Cepheid Variables 1. Why Cepheids Pulsate. Why Gravity Gets So Strong Near Dense Objects. Supermassive Black Holes. Quasars. Quasar Correction. Galactic Collisions. 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. 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. Compositional and Mechanical Layers of the Earth. Seismic Waves. Why S-Waves Only Travel in Solids. Refraction of Seismic Waves. The Mohorovicic Seismic Discontinuity. How we know about the Earth's core. Pangaea. Scale of the Large. Scale of the Small. 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. Human Evolution Overview. Understanding Calendar Notation. Correction Calendar Notation. Development of Agriculture and Writing. Introduction to Light. Seasons Aren't Dictated by Closeness to Sun. How Earth's Tilt Causes Seasons. Milankovitch Cycles Precession and Obliquity. Are Southern Hemisphere Seasons More Severe?. Precession Causing Perihelion to Happen Later. What Causes Precession and Other Orbital Changes. Apsidal Precession (Perihelion Precession) and Milankovitch Cycles. Firestick Farming. Carbon 14 Dating 1. Carbon 14 Dating 2. Potassium-Argon (K-Ar) Dating. K-Ar Dating Calculation. Chronometric Revolution. Collective Learning. Land Productivity Limiting Human Population. Energy Inputs for Tilling a Hectare of Land. Random Predictions for 2060.

Things in our universe can be unimaginably large and small. In this topic, we'll try to imagine the unimaginable!. Scale of the Large. Scale of the Small. Introduction to Light. Four Fundamental Forces. 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. Big Bang Introduction. Radius of Observable Universe. (Correction) Radius of Observable Universe. Red Shift. Cosmic Background Radiation. Cosmic Background Radiation 2. Hubble's Law. A Universe Smaller than the Observable. Scale of the Large. Scale of the Small. Introduction to Light. Four Fundamental Forces. 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. Big Bang Introduction. Radius of Observable Universe. (Correction) Radius of Observable Universe. Red Shift. Cosmic Background Radiation. Cosmic Background Radiation 2. Hubble's Law. A Universe Smaller than the Observable.

Our universe is defined by stars. This topic explores how they came to be and where they end up. This includes a discussion of black holes and galaxies. Birth of Stars. Accreting mass due to gravity simulation. Challenge: Modeling Accretion Disks. 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. Birth of Stars. Accreting mass due to gravity simulation. Challenge: Modeling Accretion Disks. 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.

Zinc Copper cell (reduction-oxidation). How to Measure?. Battery Meter (Galvanometer). How Many Turns?. Electrolyte Test (pure water vs. vinegar). Reverse Electrodes (polarity). Electrolyte (strong acid test). Electrolyte (salt test). Electrode (distance test). Electrolyte (temperature test). Electrode (surface area test). Standard Cell. How much electrolyte does a single cell need?. What's Next?.

Discovery of Electromagnetism. Experiment: Electromangetism. Electromagnetic Field (above vs. below). Electromagnetic Field (forward vs. reverse). Electromagnetic Field (loop). Right-Hand Rule. Battery Meter (Galvanometer).

Magnet near Compass. Tracing a Magnetic Field. Tracing a magnetic field. Discovery of Magnetic Fields. Magnet and iron filings. Magnetic field. 3D magnet with field. Magnetic Permeability. Increase Strength of Magnet. What's Next?.

Discovery of Magnetism. Compass: which way is north?. Floating Magnet. Compass Build (stroke direction). Compass Build (magnet orientation). Neutralize a Compass. Compass Interactions. Magnetising materials. What's Next?.

Series Load. Pencil Resistor. Variable Resistor (Pencil). Listen to Variable Resistance. What's Next?.

Spinning Compass. Build your own motor. What's Next.

Electromagnet (construction tip). Electromagnet (penny powered). Understanding Force.

Discovery of Triboelectric effect. Pith Ball Electroscope. Foil Leaf Electroscope. What's Next?.

Are 2 magnets stronger than 1?. Measure the Earth!. Earth's Magnetic Field (how to measure). Force over Distance. Inverse Cube Law (deflection method). Inverse Square Relationship. Inverse Cube Law (Method of Oscillation).

Watch fun, educational videos on all sorts of Materials, how they're created and what they can do. Whats all the matter? Atoms and Molecules. What is Soap?. Flocculation: Making Clean Water. Manufacturing Processes: Hands On to Hands Off. Whats all the matter? Atoms and Molecules. What is Soap?. Flocculation: Making Clean Water. Manufacturing Processes: Hands On to Hands Off.

Everything in the universe can be measured. Under Pressure. Earth's Tilt 1: The Reason for the Seasons. Earth's Tilt 2: Land of the Midnight Sun. 2D Equilibrium -- Balancing Games. Under Pressure. Earth's Tilt 1: The Reason for the Seasons. Earth's Tilt 2: Land of the Midnight Sun. 2D Equilibrium -- Balancing Games.

Watch fun, educational videos on all sorts of Physics questions. Bridge Design and Destruction! (part 1). Bridge Design (and Destruction!) Part 2. Shifts in Equilibrium. The Marangoni Effect: How to make a soap propelled boat!. The Invention of the Battery. The Forces on an Airplane. Bouncing Droplets: Superhydrophobic and Superhydrophilic Surfaces. A Crash Course on Indoor Flying Robots.

Watch fun, educational videos on all sorts of Physics questions. Thomas Young's Double Slit Experiment. Newton's Prism Experiment. Bridge Design and Destruction! (part 1). Bridge Design (and Destruction!) Part 2. Shifts in Equilibrium. The Marangoni Effect: How to make a soap propelled boat!. The Invention of the Battery. The Forces on an Airplane. Bouncing Droplets: Superhydrophobic and Superhydrophilic Surfaces. A Crash Course on Indoor Flying Robots. Heat Transfer. Thomas Young's Double Slit Experiment. Newton's Prism Experiment. Bridge Design and Destruction! (part 1). Bridge Design (and Destruction!) Part 2. Shifts in Equilibrium. The Marangoni Effect: How to make a soap propelled boat!. The Invention of the Battery. The Forces on an Airplane. Bouncing Droplets: Superhydrophobic and Superhydrophilic Surfaces. A Crash Course on Indoor Flying Robots. Heat Transfer.

Electrostatics (part 1): Introduction to Charge and Coulomb's Law. Electrostatics (part 2). Proof (Advanced): Field from infinite plate (part 1). Proof (Advanced): Field from infinite plate (part 2). Electric Potential Energy. Electric Potential Energy (part 2-- involves calculus). Voltage. Capacitance. Circuits (part 1). Circuits (part 2). Circuits (part 3). Circuits (part 4). Cross product 1. Cross Product 2. Cross Product and Torque. Introduction to Magnetism. Magnetism 2. Magnetism 3. Magnetism 4. Magnetism 5. Magnetism 6: Magnetic field due to current. Magnetism 7. Magnetism 8. Magnetism 9: Electric Motors. Magnetism 10: Electric Motors. Magnetism 11: Electric Motors. Magnetism 12: Induced Current in a Wire. The dot product. Dot vs. Cross Product. Calculating dot and cross products with unit vector notation. Electrostatics (part 1): Introduction to Charge and Coulomb's Law. Electrostatics (part 2). Proof (Advanced): Field from infinite plate (part 1). Proof (Advanced): Field from infinite plate (part 2). Electric Potential Energy. Electric Potential Energy (part 2-- involves calculus). Voltage. Capacitance. Circuits (part 1). Circuits (part 2). Circuits (part 3). Circuits (part 4). Cross product 1. Cross Product 2. Cross Product and Torque. Introduction to Magnetism. Magnetism 2. Magnetism 3. Magnetism 4. Magnetism 5. Magnetism 6: Magnetic field due to current. Magnetism 7. Magnetism 8. Magnetism 9: Electric Motors. Magnetism 10: Electric Motors. Magnetism 11: Electric Motors. Magnetism 12: Induced Current in a Wire. The dot product. Dot vs. Cross Product. Calculating dot and cross products with unit vector notation.

Fluids (part 1). Fluids (part 2). Fluids (part 3). Fluids (part 4). Fluids (part 5). Fluids (part 6). Fluids (part 7). Fluids (part 8). Fluids (part 9). Fluids (part 10). Fluids (part 11). Fluids (part 12). Fluids (part 1). Fluids (part 2). Fluids (part 3). Fluids (part 4). Fluids (part 5). Fluids (part 6). Fluids (part 7). Fluids (part 8). Fluids (part 9). Fluids (part 10). Fluids (part 11). Fluids (part 12).

Classical gravity. How masses attract each other (according to Newton). Introduction to Gravity. Mass and Weight Clarification. Gravity for Astronauts in Orbit. Would a Brick or Feather Fall Faster. Acceleration Due to Gravity at the Space Station. Space Station Speed in Orbit. Introduction to Newton's Law of Gravitation. Gravitation (part 2). Introduction to Gravity. Mass and Weight Clarification. Gravity for Astronauts in Orbit. Would a Brick or Feather Fall Faster. Acceleration Due to Gravity at the Space Station. Space Station Speed in Orbit. Introduction to Newton's Law of Gravitation. Gravitation (part 2).

Linear momentum. Conservation of momentum. Elastic collisions. Introduction to Momentum. Momentum: Ice skater throws a ball. 2-dimensional momentum problem. 2-dimensional momentum problem (part 2). Introduction to Momentum. Momentum: Ice skater throws a ball. 2-dimensional momentum problem. 2-dimensional momentum problem (part 2).