John D Ruddy
American Civil War (Remastered Edition) - Manny Man Does History
What happened when America went to war against itself.
One Minute History
084 Before the Attack on Pearl Harbor - One Minute History
1941 - Tensions between Japan and the United States run hot as the Imperial Japanese Army invades China and French Indochina. The U.S. responds by sending support to the Nationalist government of Chiang Kai-shek and imposes trade...
Jabzy
Confederate fighting in Ethiopia: The Diary of A Confederate Veteran who fought with the Egyptians.
Confederate fighting in Ethiopia: The Diary of A Confederate Veteran who fought with the Egyptians.
Jabzy
How did the Communists Take over China? | History of China 1945-1955 Documentary 7/10
How did the Communists Take over China? | History of China 1945-1955 Documentary 7/10
Curated Video
Not in Kansas Anymore
The video “Not in Kansas Anymore” explains how tornadoes form, what makes them dangerous, and how to stay safe when they occur.
Schooling Online
Physics - Module 2 - Introduction to Statics and Dynamics: Static Friction
Vector Man enrols into Ian’s superhero training programme! This lesson will explain how static friction is dependent on the applied force, normal force and roughness of a surface, but independent of apparent contact area. Definitions...
Schooling Online
Physics - Module 2 - Introduction to Statics and Dynamics: Dynamic Friction
Lotus isn’t the only one who has noticed that Ian is up to something… This lesson will explain how dynamic friction is dependent on the normal force and roughness of a surface, but independent of speed and apparent contact area....
Schooling Online
Shakespeare's Henry IV Part 1 - Act 4 Summary
Civil war is on the horizon but some last minute bad news puts the Northern Rebels’ cause into doubt. Meanwhile, King Henry’s soldiers are assembling, including Falstaff and his ragged infantry. Prince Hal is taking charge as a serious...
Vlogbrothers
Syria in Five Minutes
In which Hank discusses the situation in Syria as deeply and completely as he can in five minutes. Negotiations are ongoing as to whether and how chemical weapons will be removed from Syria. This is an opportunity for the global...
Vlogbrothers
John Reads the First Chapter of Turtles All the Way Down
In which John Green reads the first chapter of his new novel, Turtles All the Way Down. In it, we meet Aza, a young woman whose obsessive thought spirals do not seem to make her a particularly good detective.
Flipping Physics
3 States of Matter - Solid, Liquid, Gas
This video discusses the three common states of matter: solid, liquid, and gas. The video starts with an introduction and shows the three states of matter: a beaker (solid), water (liquid), and air (gas). Then, the video explains the...
Religion for Breakfast
Is Religion Good for the Environment?
Back in the 1960s, the historian Lynn White Jr. blamed Christianity for the climate crises of the 20th century. More recently, many religious leaders have published eco-friendly versions of their theology. But is it helping? Can religion...
Flipping Physics
Short Answer for AP Physics Explained
I answer the question, “What are AP Physics Short Answer Questions?”
Flipping Physics
#21 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about using Newton's 2nd Law to determine the acceleration of a block being pulled at an angle on a level surface.
Flipping Physics
#8 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about the acceleration of a ball at the top of its path when thrown up on the surface of a small asteroid.
Flipping Physics
#22 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about finding the coefficient of kinetic friction for a block being pulled at an angle relative to a level surface.
Flipping Physics
#20 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about using Newton's 2nd Law to determine the velocity of two identical stars in a fixed orbit around their mutual center of mass.
Flipping Physics
#19 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about using Newton's 2nd Law and uniformly accelerated motion equations to determine the initial velocity of a falling elevator that is held by a cable.
Flipping Physics
#14 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about finding the centripetal force (or the net force in the in direction) for an object on a spring moving in uniform circular motion.
Flipping Physics
#57 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about the relationship between frequency and radius for a charged particle moving in a circle in a constant magnetic field.