Top videos
In ‘Unreported World’ we’re in the Congo with a tribe under threat, as the forest they hunt for food in is put off limits to protect the wildlife. The Baka tribe tell us of threats and intimidation by the proposed park’s guards who are part-funded by the World Wildlife Fund.
Ade Adepitan travels deep into the rainforests to see how the Baka are fighting for food. Is the survival of endangered species being put above their own?
WARNING: You may find scenes of
butchered animals upsetting.
Subscribe to our channel for more Unreported World episodes https://www.youtube.com/unreportedworld.
We join the ‘Open Arms’ crew as they embark on the most dangerous migrant route in the world — and one of their deadliest missions to date.
An estimated 19,000 people have been reported dead or missing in the Mediterranean Sea since 2014 as they attempt the treacherous boat journey from Libya to Europe, fleeing war, persecution and poverty.
Since its foundation in 2015, Spanish NGO Open Arms has rescued over 60,000 refugees. But nothing prepared it for the events that unfolded on November 11, 2020.
Director: Jean-Marc Joseph
Editor: Guillem Comas
Music & Sound Editor: James Hall
Hungarian Translation: Attila Piróth
Brazilian Portuguese Translation: Mariana Braga
German Translation: Janina Gilch
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Probability is the examination of uncertain processes, but it's useful for far more than games of chance: http://www.gresham.ac.uk/lectu....res-and-events/proba
The modern theory of probability is considered to have begun in 1654 with an exchange of letters between Blaise Pascal and Pierre de Fermat, and has developed since then into the discipline which examines uncertain processes. For example, although on tossing a coin you have no idea whether you will obtain heads or tails we know that if you keep doing it then in the long run it is very likely that the proportion of heads will be close to a half. The lecture will discuss this and other examples of random processes e.g. random walks and Brownian motion.
The transcript and downloadable versions of the lecture are available from the Gresham College website: http://www.gresham.ac.uk/lectu....res-and-events/proba
Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 1,500 lectures free to access or download from the website.
Website: http://www.gresham.ac.uk
Twitter: http://twitter.com/GreshamCollege
Facebook: https://www.facebook.com/greshamcollege
Where do we get our mathematical symbols from? Why is the set of integers called ℤ ? When was the equals sign first used? How about zero? Good notation tends to catch on quickly, whereas bad notation can obscure beautiful theory.
The lecture explores how the introduction of new notation has paved the way for new leaps in understanding, and considers some mathematical quirks of language, such as what the number 4 in English has in common with the number 11 in Russian.
A lecture by Sarah Hart
The transcript and downloadable versions of the lecture are available from the Gresham College website:
http://www.gresham.ac.uk/lectu....res-and-events/maths
Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 2,000 lectures free to access or download from the website.
Website: https://gresham.ac.uk
Twitter: https://twitter.com/greshamcollege
Facebook: https://facebook.com/greshamcollege
Instagram: https://instagram.com/greshamcollege
This algebra and precalculus video tutorial explains how to solve exponential growth and decay word problems. It provides the formulas and equations / functions that you need to solve it. This video contains plenty of examples and practice problems.
My Website: https://www.video-tutor.net
Patreon Donations: https://www.patreon.com/MathScienceTutor
Amazon Store: https://www.amazon.com/shop/th....eorganicchemistrytut
Here is a list of example problems.
1. Population Growth of Rabbits on an island
2. Depreciation of car value
3. Appreciation of Home value
4. Exponential Growth Bacteria Problem - Finding how much will there if the bacteria doubles or triples every 20 minutes




