Even though the planet is warming, the amount of sunlight reaching the Earth's surface is decreasing. What is causing this, and what effect does it have? Earth Science - Human Impacts - Learning Points. Global dimming is the reduction in...

A super-current runs from the Arctic past South America to the Indian Ocean. This is major factor influencing our climate, controlling everything from currents to the weather. Earth Science - Human Impacts - Learning Points. The great...

Earth's climate has changed naturally over millions of years. Could the current cycle of warming simply be part of this natural cycle? Earth Science - Human Impacts - Learning Points. The Medieval Warm Period occurred 1000 years ago....

Lasers are usually associated with heat. But scientists have instead used them to reach the coldest temperature ever recorded. Could they reach absolute zero? Physics - Energy And Radioactivity - Learning Points. Absolute zero is...

Snow forms in the atmosphere as a result of water molecules attaching themselves to nuclei bacteria. But scientists have found ways to manipulate the freezing process of water and the production of these nuclei to create snow...

We use a metal ball and hoop to demonstrate heat expansion. When cool, the ball fits through the hoop, but there is little extra space. The ball is then heated over a Bunsen burner. When hot, the ball doesn't fit through the hoop. We see...

Discover some geo-engineering techniques that scientists are developing to manipulate Earth's climate. What are they and how would they work? Earth Science - Human Impacts - Learning Points. Geo-engineering strives to use technology to...

Ice cores taken from deep within the Earth's polar regions hold a hidden secret: the historical record of the Earth's climate. Earth Science - Human Impacts - Learning Points. Evidence of natural climate changes can be found in...

The same water has been on Earth for four and a half billion years. Where did this water come from? Earth Science - Weather - Learning Points. 4.5 billion years ago, the Earth's surface was too hot for water to exist. Inside the Earth's...

Rocks that form by the cooling and solidification of magma or lava. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

The process of magma coming to the surface, either in steady flows or violent eruptions, and cooling to form rocks. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...

It generally requires more energy to heat a home than to cool one for a number of reasons, including average temperature ranges, insulation issues, and the nature of cooling a space versus warming the air.



Heating a space...

This video provides a brief overview of the evolution of space suits worn by astronauts. It highlights the advancements made in protecting astronauts from extreme temperatures and micrometeorites while allowing them to perform complex...

In this lesson, you will learn how to make use of the density functionality in the foliage toolkit to get better painting results out of our grass.
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This clip is from the chapter "Using Foliage Mode in Unreal Engine 5" of the...

While anything that uses electricity generates some heat, no other piece of hardware in our PC generates more heat than the CPU. Keeping temperatures under control is one of the keys to a system's longevity. Let's beat the heat and...

Previously we discussed the types of heat sinks, fans, and liquid cooling that are used to lower component and system temperatures. Now we will look at keeping your system cool through even the most difficult of tasks.
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Dr. Forrester explains the interaction of the earth’s layers with the tectonic plates and the eruptions of volcanoes.

Dive into the essential guidelines for managing thermal burns in this informative video. Learn why applying ice directly to a burn is a critical mistake, as it can lead to tissue ischemia. Discover the recommended method of cooling...

Researchers in Melbourne are pioneering techniques to reduce the temperature of stroke and heart attack patients using a revolutionary blood chilling device called a cooling catheter. By cooling the patient's core body temperature, the...

The video describes a self-cooling drink can developed by Ice Tech, a South Korean company. The can contains a coil filled with compressed gas that, when released upon opening, rapidly expands and absorbs heat from the contents, cooling...

How do scroll compressors work? What are the main parts, the different types and controls.<br/>

This video covers:

- The idea that the temperature of a substance is just the average of the internal energy of all the particles it's ma
de of
- The concept of specific la
tent heat
- The specific latent...

Permaculture instructor Andrew Millison explains how the USA missed the opportunity in 1878 to create political boundaries based on watershed boundaries, and discusses the multi-faceted implications of that super big mistake.<br/>

The Amazon absorbs huge amount of CO2 and helps to cool the world, but recent studies have shown the rainforest is approaching a tipping point, with profound implications for the global climate and biodiversity. The section in Brazil,...