American democracy has a lineage of written records that we can trace to show the development of our nation, and how each document builds on those before it to make our foundation of freedom stronger. This video looks at the documents...

This video serves as English listening comprehension practice for beginner students. In this video, a native English speaker talks slowly and clearly about the topic of transportation. The subtitles are included at the bottom of the...

This video provides a brief overview of the history and importance of tires. It explains how tires protect wheels, absorb shock, provide better traction, and offer a more comfortable ride. Review significant developments in tire...

Perspective: Rob Lloyd | CEO, Virgin Hyperloop One <br/>

When you think of NASA, you probably think about outer space. But the first “A” in NASA - aeronautics - means we’re busy crafting a lot closer to home. Aerospace engineers Shivanjli Sharma, David Zahn, and Mike Guminsky are hard at work...

Join young host Kristin as she introduces you to each letter of the alphabet and things that go from A to Z! Light-hearted, kid-friendly illustrations depict everything from an awesome airplane to a revved-up racecar, all while you're...

Traffic lights are essential for directing the flow of vehicular and pedestrian traffic. They typically have three colored lights - green for go, red for stop, and yellow for slow down. Traffic lights can be controlled through fixed rate...

Trains are a form of transportation that use a series of connected vehicles to travel on railroad tracks. With various types of trains, such as passenger trains, freight trains, trams, and light rails, they provide efficient and...

Millions of people travel through airport security each year. When scanning carry-on luggage, TSA agents are usually on the lookout for liquids or wrapped gifts, but recently they have been seeing more guns. Firearms are on the TSA list...

Today you’ll learn how to never say “get” in IELTS Writing Task 2.

Health is a common topic for IELTS Speaking Part 3, as it is on all sections of the IELTS exam. Listen in for insider strategies, vocabulary and idioms that will help you score 7+ on test day.

Sebastian Thrun, a co-founder of Google X, talks about the far future of technology and creating the conditions for breakthrough ideas at WSJ Tech Live in Laguna Beach.

Over the last week or so, Biden's been announcing his picks for his cabinet. However, some aren't all that happy with the selection, arguing that he's not being the 'bridge to the Democrat's future' that he promised to be. So in this...

Why is aluminium ideal for transportation vehicles? What careers handle the smelting, refining and recycling of aluminium?<br/>
Smelting And Refining Aluminium, Part 4

MOT 1964: SUPERSONIC TRANSPORT (SST): Lockheed Aircraft executive Robert Bailey at desk, SOT talking about commercial L-2000 model on desk, 1800 to 2000 mph, development, challenges for exterior heat, propulsion system, REVERSE PAN Edge...

Men working in Belfast shipyard.

Venezuelans struggling with the country's nonexistent transportation system are resorting to dangerous and often illegal means of getting around.

For thousands of years, humans have used sailboats to navigate through oceans, seas, and lakes. Explore the history and components of the sailboats and understand how they harness the power of the wind to propel the boat. This video also...

Global warming is something that threatens to impact us all: both environmentally (with the loss of natural marvels such as the great barrier reef) and economically.



But humans aren't actually contributing as...

Navigate the world of yachts, from their historical origins as fast watercrafts used by the Dutch Navy to their modern-day status as luxury vessels. Explore the different types of yachts based on size, ranging from cabin cruisers to...

Tanks to Russia through Iran<br/>
US Soldiers unloading truck w/ crane from transport freighter US & Iranian soldiers checking supplies on dock train w/ tanks moving / Allied supplies for Russia Union of Soviet Socialist Republics.

VS Mount Suribachi being bombarded w/ explosions, Navy battleship firing cannons just off shore at sea / VS Admiral Richmond Kelly Turner looking over notes, various radio operators in communication room, one writing on board, seaman on...

👉 Learn how to simplify expressions using the power rule of exponents. When several terms of an expression is raised to an exponent outside the parenthesis, the exponent is distributed over the individual terms in the expression and the...

Cuando el nuevo día comienza, la Excavadora y el resto de los camiones de la construcción, encuentran muchos modos de ser gentiles. Hay hoyos para excavar. Hay cargas, e incluso amigos, para transportar o sacarlos de situaciones...