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Introduction to cyber security: stay safe online free course icon Level 1 icon Badge icon

Science, Maths & Technology 

Introduction to cyber security: stay safe online

This free course, Introduction to cyber security: stay safe online, will help you to understand online security and start to protect your digital life, whether at home or work. You will learn how to recognise the threats that could harm you online and the steps you can take to reduce the chances that they will happen to you.

Free course
24 hrs
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Using a scientific calculator free course icon Level 1 icon

Science, Maths & Technology 

Using a scientific calculator

Do you have a Casio fx-83 ES scientific calculator (or a compatible model) and want to learn how to use it? This free course, Using a scientific calculator, will help you to understand how to use the different facilities and functions and discover what a powerful tool this calculator can be!

Free course
10 hrs
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Earthquakes free course icon Level 1 icon

Science, Maths & Technology 

Earthquakes

Earthquakes shake the ground surface, can cause buildings to collapse, disrupt transport and services, and can cause fires. They can trigger landslides and tsunami in short, earthquakes can be very destructive. In this free course you will look at why, where and what happens when they occur and also at how earthquakes are assessed qualitatively and quantitatively.

Free course
8 hrs
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How you can be more secure than the President article icon

Science, Maths & Technology 

How you can be more secure than the President

To keep your digital world protected, you don't need to build a border wall - just follow some good security housekeeping advice

Article
Modelling events in time free course icon Level 2 icon

Science, Maths & Technology 

Modelling events in time

This free course develops ideas about probability and random processes. Sections 1 and 2 introduce the fundamental ideas of random processes through a series of examples. Section 3 describes a model that is appropriate for events occurring ‘at random’ in such a way that their rate of occurrence remains constant. Section 4 derives the main results from Section 3. Section 5 introduces the multivariate Poisson process in which each event may be just one of several different types of event. Section 6 introduces the non-homogeneous Poisson process in which events occur at a rate that varies with time.

Free course
16 hrs
Kinematics of fluids free course icon Level 2 icon

Science, Maths & Technology 

Kinematics of fluids

This free course examines the basic kinematics of two-dimensional fluid flows. Section 1 introduces the differential equations for pathlines and streamlines. Section 2 introduces a scalar field, called the stream function, which for an incompressible fluid provides an alternative method of modelling the flow and finding the streamlines. Sections 2 and 3 derive the stream functions for several simple two-dimensional flow types (the uniform flow, source, doublet and vortex), and suitable combinations of these are used to model more complicated flows. Section 4 introduces the idea of differentiation following the motion, and Euler’s equation is developed in Section 5.

Free course
16 hrs
Linear programming – the basic ideas free course icon Level 2 icon

Science, Maths & Technology 

Linear programming – the basic ideas

This free course examines the formulation and solution of small linear programming problems. Section 1 deals with the formulation of linear programming models, describing how mathematical models of suitable real-world problems can be constructed. Section 2 looks at graphical representations of two-dimensional models, considers some theoretical implications and examines the graphical solution of such models. Section 3 introduces the simplex method for solving linear programming models and Section 4 uses matrix notation to formalize the simplex method.

Free course
16 hrs