An object in space with enough mass in a relatively small region of space that nothing can escape its gravity, not even light.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using...

A large cauldron-like volcanic feature, formed when a chamber full of magma empties and the ground above it collapses.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning...

A small to medium sized star late in its life, when it has used up its hydrogen in nuclear fusion and starts burning heavier elements.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60...

What happens when non-living factors in an ecosystem are altered, such as rainfall or air quality? Biology - Ecosystems - Learning Points. An ecosystem is a living system interacting with its physical habitat. Changes in biotic and...

Discover how dying stars transform into black holes, areas of mass so great that even light can't escape. Physics - Universe - Learning Points. When a star dies, it collapses and condenses into a single point, known as a singularity. The...

What happens if you change the living factors of an ecosystem? Discover the effect of removing predators or introducing a new species into a habitat. Biology - Ecosystems - Learning Points. The smallest change can tip the balance of the...

In close-up, moving water can be seen to hold a hidden danger that can destroy metal and stun animals. How can tiny bubbles create enough heat to cause such damage? Physics - Energy And Radioactivity - Learning Points. Cavitation is the...

Scientists believe there is a supermassive black hole 26,000 light years away at the centre of our Galaxy. But how do they know, when they can't see it? Physics - Universe - Learning Points. Black holes are formed when massive stars...

In this video, we will refactor our Tracalorie project to use Webpack. We will explore how to configure Webpack to work with our project, including loading CSS files, transpiling our JavaScript with Babel, and optimizing our code with...

This video focuses on refactoring the Tracalorie App project to use a single _newItem method for creating new meal and workout objects. The video covers how to use JavaScript classes and the 'this' keyword to create a more efficient...

Explore the sudden and often terrifying phenomenon of sinkholes. This video investigates how these giant holes are formed naturally over thousands of years, their potential dangers, and what typically lies at their mysterious bottoms....

This video covers importing task information from a Word document into Project 2021. We will learn to map Word headings to project tasks and adjust the imported task properties.
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This clip is from the chapter "Entering Tasks"...

In this video, we will learn to create summaries and subtasks in Project 2021. We will learn to use indent and outdent commands to complete a task hierarchy and to use the task information dialog box to set task properties.
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This video illustrates the Project 2021 ribbon and its commands. Learn to use the ribbon to access commands and customize it to suit your needs. Learn how to work with contextual tabs that appear when specific objects are...

In this video, you will learn how to send API data using an example.
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This clip is from the chapter "Routing and API" of the series "The Complete Vue.js Course for Beginners".This section explains routing, dynamic routing, and...

Dr. Forrester teaches about the skeletal system.

This video provides a detailed account of the September 11, 2001 terrorist attacks on the United States, commonly known as 9/11. It covers the events of that fateful day, as well as the heroic actions of passengers on the fourth hijacked...

A recent study of an ice core sample from Greenland has pinpointed the Central American Ilopango mega-eruption to 431 AD. This eruption is believed to have devastated an entire Maya region and caused global cooling that affected...

The video discusses two separate topics: the deteriorating state of the Titanic wreck and the search for evidence of antimatter. It highlights the alarming decay of the Titanic wreck, which is on the verge of collapsing, and the efforts...

In this video, we will focus on Exercise 07 of this section, where we need to format data as a table, then sort and filter the data.

Displaying data is an important task for most web developers. In this video, Mark will show you how to create HTML tables to display data-- similar to an Excel spreadsheet.

Nobel Laureate Roger Penrose (Oxford) tells us why he is sceptical of the inflationary theory of cosmology.

Nobel laureate in Physics David Politzer (Caltech) uses a banjo to demonstrate how octaves and harmonics arise from vibrating strings.

Nobel Laureate Roger Penrose, University of Oxford, describes why he believes that inflationary cosmology doesn't explain the mystery of why the universe began in such an unlikely, very smooth state, arguing that had it started out...