Secondary Catalogue
Series: Geography
A Brief History of Wind Power
Did you know that the earliest known example of a wind-driven wheel to power a machine was made by Hero of Alexandria in Ancient Greece? It powered an organ! This video traces the history of wind power from 10-70 CE to today.
A Meatless Future
Humans have a 1.5 million year history with meat, but a rapidly growing population means we need alternatives, and fast.
Airbnb, Media and Tourism
Airbnb has over 6 million listings worldwide. This video explores the rise of home-sharing, why tourists find it so appealing and the various impacts that growing numbers of short-term holiday rentals are having on tourists, cities and citizens.
Alaskan Herring Spawn
For the pacific herring, the abundance of plankton serves as a breeding ground for new life.
Alaskan Sea Lions in Winter
Trapped in the freezing temperatures of an Alaskan winter, the tough sea lions must brave these conditions.
Algae Ecosystems
Although microscopic in size, algae produces nearly three quarters of oxygen in our atmosphere.
Aluminium Can Recycling
Ever wondered what happens to your empty can of soft drink once you throw it into a recycling bin? This video takes you through the process from start to end of how a can becomes a new can!
An Avalanche Hits a Small Town and the Effects it Has
In the small American town Missoula, learn just how devastating an avalanche can be.
Arctic Warming
The oceans absorb 90% of the heat from greenhouse gasses, causing ever more ice to melt.
Asia
Did you know that Asia is the most populated continent on the planet? It comprises 48 unique countries and this video will show you some of the incredible natural features that Asia can call its own.
Asian Countries: Mongolia and Pakistan
Mongolia and Pakistan are both countries in Asia. They exemplify some of the magnitude of difference across the continent and this video provides an insight into each.
Aspects of Cattle Farming
Cattle are very useful to humans as they provide milk and meat and also help with agricultural tasks. To get a good yield from cattle, they should be provided adequate fodder and water, and proper cleaning and shelter facilities.
Asteroids and the Barringer Crater
In Arizona, the Barringer crater reveals how our planet comes into contact with another object.