Apollo 15 Video Courtesy of NASA: The 1971 Feather and Hammer Drop Experiment performed by Astronaut David Scott. We analyze the experiment to determine the height from which the feather and hammer were dropped. It is a great, basic,...

Until yesterday there had been rumours that May was planning to bring back her deal for a third meaningful vote. Then Speaker of the House of Commons, John Bercow, changed that. He declared that she wasn't able to bring back the same...

Listen to the buzzing and whirring of robots that help shape the future of space exploration. NASA Robotics Technologist Brian Roberts takes you on a sound tour of the lab where robots are tested for spaceflight. Music credits:...

👉 Learn how to solve particle motion problems. Particle motion problems are usually modeled using functions. Now, when the function modeling the position of the particle is given with respect to the time, we find the speed function of...

👉 Learn how to solve particle motion problems. Particle motion problems are usually modeled using functions. Now, when the function modeling the position of the particle is given with respect to the time, we find the speed function of...

👉 Learn how to solve particle motion problems. Particle motion problems are usually modeled using functions. Now, when the function modeling the position of the particle is given with respect to the time, we find the speed function of...

👉 Learn how to solve particle motion problems. Particle motion problems are usually modeled using functions. Now, when the function modeling the position of the particle is given with respect to the time, we find the speed function of...

WS Sailboat moving closer to British submarine WS Norwegian refugees boarding submarine deck, English officer (POV boat) WS Refugees walking across deck INT MS Refugees down hatch ladder Norwegian refugees down hatch ladder WS English...

The Sun contains 99.8 of the mass in our solar system. Its gravitational pull is what keeps everything here, from tiny Mercury to the gas giants to the Oort Cloud, 186 billion miles away. But even though the Sun has such a powerful pull,...

This video presents an exercise to practice deleting text in a file using the Vi/Vim editor. This clip is from the chapter "Vim Essentials" of the series "Vim Masterclass".This section presents an overview of Vim essentials.

This video presents an exercise to practice the different ways of inserting, changing, replacing, and joining text in Vim. This clip is from the chapter "Transforming and Substituting Text" of the series "Vim Masterclass".This section...

Your friend Lisa needs some help moving, but how long will it take? You're so hungry! Just do a little work with kinematics and Newton's laws, and then it'll be time for tacos.

Clouds manifest moisture condensed in the air. In this program they are appreciated and pondered. Clouds give clues to wind direction, humidity levels, weather patterns, and they just make pretty sights. We look at the basic type of...

How do you break a vector down into components? How does cosine and sine help with vectors? Why break vectors into components? Scalers and Vectors, Part 3

MOT 1951: LARGE CITY STREET SCENE: Crowd of people in spring or fall coats walking on 'big' city sidewalk w/ traffic moving BG. WS People walking on urban sidewalk, men in top coats over suits, women in short & long coats.

VS United States Marine Engineering Units & Navy Construction Battalion excavators (aka diggers) on Iwo Jima beach loading, moving, unloading mounds of dirt, tractors paving airstrip for airfield / VS Boeing B29 Superfortress approaching...

There are numerous steps in the trial process. These steps take place before, during, and after the actual trial. This video explains what are pre-trial procedures, and how do they work?

It is not obvious in all relative motion problems how to draw the vector diagrams. Sometimes the velocity of the object with respect to the Earth is not the hypotenuse of the velocity vector addition triangle. Here we address how to...

Part II of The Scientific Revolution explores the latter half of this movement and the gradual acceptance of scientific truth. This fascinating period of history chronicles European society's emergence from church domination that...

MOT 1951: MAP: Map of Iran w/ Teheran & Abadan (world's largest oil refinery) highlighted / Oil wells marked / HA WS Oil refinery w/ train moving on tracks FG / XWS Refinery w/ storage tanks FG / WS Refinery smoke stacks black smoke /...

This video explains how to use the insert, change, replace, and join functions or commands. This clip is from the chapter "Transforming and Substituting Text" of the series "Vim Masterclass".This section explains how to transform and...

This video presents an exercise to practice how to use Vim's visual mode. This clip is from the chapter "Visual Mode" of the series "Vim Masterclass".This section explains the visual mode of Vim.

This video demonstrates how to delete text using the Vim editor. This clip is from the chapter "Vim Essentials" of the series "Vim Masterclass".This section presents an overview of Vim essentials.

Secondary Dominants can be a little confusing. Why does the label look like a fraction? What does it mean to borrow a chord from another key? We'll talk about all of that today.