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level 3: advanced icon
Science, Maths & Technology
White dwarfs and neutron stars
Stars live their lives for millions or billions of years but will eventually die. Low mass stars (like the Sun) will end their lives producing so-called planetary nebulae, and leave behind a collapsed core known as a white dwarf. More massive stars will end their lives by exploding and producing a so-called supernova remnant, and leave a neutron...
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level 3: advanced icon
Science, Maths & Technology
The formation of exoplanets
Over the last few decades astronomers have discovered thousands of planets orbiting stars other than the Sun – known as exoplanets. Many of these exoplanets are quite unlike anything we see in our Solar System. These include ‘hot Jupiters’ orbiting very close to their parent star and rocky ‘super Earths’ many times larger than our home planet. ...
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level 2: intermediate icon
Science, Maths & Technology
Blood and the respiratory system
‘Don’t hold your breath’ is an expression you’ve probably heard many times, but may not have thought too much about. In this free course, Blood and the respiratory system, you’ll study why respiration is so important for life, including how air enters and leaves the lungs, how oxygen is transported in the blood, the many dynamic factors that ...
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level 2: intermediate icon
Science, Maths & Technology
Unsolved problems in cosmology
The science of cosmology has been very successful in explaining a wide range of observational evidence about the Universe, from the detailed properties of the cosmic microwave background radiation to the distributions of galaxies, and the elemental abundances in astrophysical environments. However, there are several major unknowns in ...
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level 1: introductory icon
Science, Maths & Technology
Everyday maths 1 (Northern Ireland)
This free course will develop and improve your essential maths skills for work, study and everyday life. The course has four sessions, which cover the following topics: numbers, measurement, shapes and space, and handling data. There will be plenty of examples to help you progress, together with opportunities to practise your understanding.
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level 1: introductory icon
Science, Maths & Technology
Introduction to differentiation
This free course is an introduction to differentiation. Section 1 looks at gradients of graphs and introduces differentiation from first principles. Section 2 looks at finding derivatives of simple functions. Section 3 introduces rates of change by looking at real life situations. Section 4 looks at using the derivative of a function to deduce ...
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level 3: advanced icon
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Science, Maths & Technology
Returning to STEM
This free badged course, Returning to STEM, offers useful skills and solutions to help you get back into a career in science, technology, engineering or mathematics (STEM).
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level 2: intermediate icon
Science, Maths & Technology
Astronomy: images of the Universe
Modern astronomy utilises a range of techniques across the electromagnetic spectrum that allow astronomers to measure the brightness, size and shape of astronomical objects, as well as their structure in many cases. This free course enables you to explore multiwavelength images of the Universe and make your own measurements of stars, nebulae and...
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level 1: introductory icon
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Science, Maths & Technology
Moons of our Solar System
In this free course, Moons of our Solar System, explore the many moons of our Solar System. Find out what makes them special. Should we send humans to our Moon again?
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level 1: introductory icon
Science, Maths & Technology
Data analysis: hypothesis testing
Making decisions about the world based on data requires a process that bridges the gap between unstructured data and the decision. Statistical hypothesis testing helps decision-making by formulating beliefs about the world, including people, organisations or other objects, and formally testing these beliefs. In this free course, you will ...
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level 1: introductory icon
Science, Maths & Technology
Data analysis: visualisations in Excel
Evidence comes in the form of qualitative or quantitative data about the world around you. It is not always obvious, however, how to structure, aggregate, analyse or interpret the data to help you make decisions. In this free course, you will look at how to use data to make decisions in a systematic way using Microsoft Excel. Microsoft Excel ...
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level 3: advanced icon
Science, Maths & Technology
Engineering: environmental fluids
This course introduces the properties of the atmosphere and how wind movements arise and are affected by pressures and the Earth’s motion, development of weather system, moving onto the Earth’s oceans and seas. Understanding how ocean movements are generated and sustained in the form of waves, tides, flows and currents is important in many ...