For the Love of Learning since 1597

Gresham College provides outstanding educational talks and videos for the public free of charge. There are over 2,500 videos available on our website. Your support will help us to encourage people's love of learning for many years to come. 

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    Error Control Coding

    When was the last time you opened a file and noticed a computer glitch? “Never” is the usual answer. Yet the underlying hardware makes continual errors: disks make errors, the internet loses packets of data, wifi signals get corrupted and so on. This lecture is about the secrets of this mysterious invulnerability is Error Control Coding: a way of storing or transmitting information such that it knows it has been corrupted and can correct itself.

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    Compression

    When you tune into Netflix you might not be aware that the box in your living room starts a complex set of negotiations with servers on moving 563 Gbytes of information into your residence. That is equivalent to having 15,000 copies of the Encyclopaedia Britannica dumped into your home! So, why is watching a Netflix film not the equivalent of the Amazon-delivery from hell? Compression, which this lecture will show is economically and entropically a hot topic.

    Inventions That Changed The World: GPS

    In 1977 or thereabouts a collection of scientists huddled around a secret radio receiver in the US desert. This was the start of GPS, Glonass, Gallileo and the whole navigation industry. But how does this technology work? And are there situations when it does not work?

    Aristotle's Lyceum

    This lecture looks at the archaeological site of the Lyceum, discovered accidentally in 1996, and asks how the remains can illuminate Aristotle’s life, work, and incomparable contribution across academic disciplines, from Political Theory and Aesthetics to Zoology, Physics and Astronomy.

    How Will We Learn Maths in the Future?

    Mathematics education is changing rapidly and a big driver for this is the use of new technology. In this talk, we will look at the modern developments of computer based teaching and learning.

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