Adastral Park
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STEM subjects
Welcome to our virtual STEM learning programme.
These short videos explain how we are using computing, science, maths and engineering to help people to communicate and stay connected.
We hope these will help to bring the school curriculum to life and give you a view of what you are learning at school / college is used in the world of work.
We'll be adding more to build up the collection over the coming months and are planning to add subtitles to the videos soon. Why not start with taking a look at our Purposeful Innovation video to find out a little bit more about what we do?
Please email us at computerscience@bt.com with any feedback or if you have an request for a topic you'd like us to cover.
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Adastral Park
Purposeful innovation
Added: July 2020
Why purposeful innovation is important and what are the real world benefits?
Theory
Electromagnetic interference and its impact on broadband
Added: December 2020
Suggested age range: 16+
Curriculum links: Show curriculum links
How copper based broadband services are delivered and the impact of electromagnetic interference.
Data and information
Delivering TV services over the internet
Added: July 2020
Suggested age range: 13+
Curriculum links: Show curriculum links
Many digital services are now delivered over the Internet to phones, tablets, computers and smart TVs...
Hashing and cryptography
Added: November 2020
Curriculum links: Show curriculum links
This short video explains what hashing is in computer science and how it enables us to preserve the integrity of our data.
Data visualisation
Added: July 2020
Suggested age range: 13+
Curriculum links: Show curriculum links
This video will focus on data visualisation using visual programming tools like Node-Red...
From holograms to augmented reality
Added: July 2020
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A history of holograms and their modern evolution in technology.
What is quantum key distribution?
Added: July 2020
Suggested age range: 16+
Curriculum links: Show curriculum links
An introduction to Quantum Key distribution (QKD). What are quantum keys and how can we use them?
Doing the right thing with data and AI
Added: December 2020
Suggested age range: 14+
Curriculum links: Show curriculum links
Why do we see all these pop-ups about website cookies when all we want are Christmas cookies? Is it ok to put someone's email address on Santa's naughty or nice list?
Data structures and algorithms
An introduction to graphs
Added: December 2020
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Introducing the notion of graphs and how they can be used.
Storing graphs
Added: December 2020
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How are graphs stored for use in algorithms and calculations?
Traversing graphs, part 1
Added: December 2020
Curriculum links: Show curriculum links
A walkthrough of the depth-first search algorthm.
Traversing graphs, part 2
Added: December 2020
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A walkthrough of the breadth-first search algorthm and a comparison between depth and breadth first search.
Route optimisation
Added: December 2020
Suggested age range: 14+
Curriculum links: Show curriculum links
Helping Santa make the best possible Christmas! Delivering millions of packages across the world to demanding deadlines takes careful planning – and clever software.
Computer networks
What is total internal reflection?
Added: July 2020
Suggested age range: 11+
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A demo showing how total internal reflection makes communicating with optical fibres work.
What is full fibre?
Added: July 2020
Suggested age range: 11+
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An introduction to how broadband is delivered today and how it is going to be delivered in the future.
What is edge computing?
Added: July 2020
Suggested age range: 14+
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An introduction to Edge, or Edge Computing, where processing is done at the edge of the network.
What are standing waves?
Added: July 2020
Suggested age range: 11+
Curriculum links: Show curriculum links
Demo showing how you can see standing waves and why these matter for communicating with optical fibres.
What is Wi-Fi?
Added: July 2020
Suggested age range: 14+
This video outlines some of the physics behind Wi-Fi, its position in the electromagnetic spectrum, factors that affect Wi-Fi signal strength and how it compares to cellular.
Online security
Added: November 2020
Suggested age range: 10+
Curriculum links: Show curriculum links
Staying safe online
Computer systems
Connected devices
Added: July 2020
Suggested age range: 13+
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An introduction to Connected Devices or the Internet of Things (IoT)...
How do computers make decisions?
Added: November 2020
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Logic gates are the basic building blocks of any digital system...
Using connectivity in the smart home
Added: December 2020
Suggested age range: 13+
Curriculum links: Show curriculum links
An introduction to smart home devices and the benefits of connecting your home to the network.
Programming
How can agile work in a software environment?
Added: July 2020
Suggested age range: 14+
Curriculum links: Show curriculum links
A introduction into agile software development and how it can be used practically to create applications.
Video and audio editing
Added: July 2020
Suggested age range: 11+
Everything around us is getting more and more media rich...
Home automation and robotics using a Raspberry Pi
Added: July 2020
Curriculum links: Show curriculum links
This tutorial will provide an introduction to robotics using Python to create a controllable camera on a gimbal made from servos.