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Moons of our Solar System Badge icon
Science, Maths & Technology

Moons of our Solar System

...de force, watch this Waltz Around Saturn video produced by Fabio Di Donato who edited together highlights from the Cassini mission during its orbital tour of Saturn. Turn your sound on, because we think that fitting the pictures to this music was a work of genius. [This is an image taken from the Waltz around Saturn video.] Figure 27 Highlights from the Cassini mission...
Level 1: Introductory 24 hrs
Meiosis and mitosis
Science, Maths & Technology

Meiosis and mitosis

...based on the concept of the gene as the unit of inheritance understand that sexual reproduction always includes two distinctive processes: the production of gametes, which involves meiosis, and fertilisation. understand that a particular phenotypic character is determined by the two copies of a gene that an organism possesses and these two copies are identical in a...
Level 1: Introductory 8 hrs
Studying mammals: Plant predators
Nature & Environment

Studying mammals: Plant predators

...based diets. To get the most out of this course you will need access to a copy of The Life of Mammals (2002) by David Attenborough, BBC Books (ISBN 0563534230), and The Life of Mammals (2002) on DVD, which contains the associated series of ten BBC TV programmes. You should begin each course by watching the relevant TV programme on the DVD and reading the corresponding...
Level 1: Introductory 10 hrs
An introduction to energy resources
Nature & Environment

An introduction to energy resources

...based on natural biomass dominate the lives of human populations in the so-called 'Third World' or 'developing countries'. The 19th century heralded a large increase in energy use in what were to become industrialised countries (Figure 1.1), particularly the use of coal. Homes and other buildings were heated; factories and railways were powered by steam engines (Figure...
Data analysis: visualisations in Excel
Science, Maths & Technology

Data analysis: visualisations in Excel

...based on faulty information. In the next section, you will learn how to make cumulative frequency distribution tables in Excel...Data analysis: visualisations in Excel: 2.2.5 Cumulative frequency distribution tables - Cumulative frequency distribution is the fourth type of frequency distribution table. This type of frequency distribution can be used for ordinal or...
Introduction to active galaxies
Science, Maths & Technology

Introduction to active galaxies

...de-excited by collision with another particle before a photon can be emitted spontaneously. Such low densities cannot be achieved on Earth which is why these lines are not observed in the laboratory. When they are observed astronomically, we can be sure that they have been produced in a region of extremely low density. They are prominent in the spectra of active galaxies...
Level 2: Intermediate 20 hrs
Childhood in the digital age
Education & Development

Childhood in the digital age

...based games lead to problems in children’s mental and physical development? Many parents, educators and psychologists have legitimate reasons to worry about children’s engagement with the digital world. We live in a risk-averse society and this is certainly true with regard to children. We know that children are likely to run risks if they access the internet...
Level 1: Introductory 12 hrs
Entrepreneurial impressions – reflection
Money & Business

Entrepreneurial impressions – reflection

...based on the ways it is organised, the context in which it takes place and the goals that are pursued in its name. Now watch ‘A successful jam-making business’ (duration: 05:53 minutes). It features 20-year-old Fraser Doherty from Edinburgh, who started making jam at home with his grandmother. As demand grew, he looked into the jam market and spotted a gap for a...