“Where Do We Go From Here?”
Delivered at the 11th Annual SCLC Convention in Atlanta, Georgia.
Comprehensive collection can be purchased here... https://amzn.to/2KkYhAJ

For the first time in 60 years, Cuba will not have a Castro at the helm.
89-year-old Raul Castro is relinquishing his position as head of the Communist Party.
He says he wants to pass the baton to a younger generation.
Raul and his late brother Fidel began their leadership of Cuba after the Communist Revolution in 1959.
As he now heads into retirement Raul leaves a country wracked by the economic effects of coronavirus and U.S. sanctions and with growing signs of dissent.
So will this bring political change?
And what about relations with the United States?
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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
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This is a slide presentation by Prof. Ampim in a series of radio broadcasts on the ancient Kushite civilization, based on his extensive primary research in northeast Africa over the past 30 years.
Part 2 of 4
www.AdvancingTheResearch.org
www.ManuAmpim.com

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

Lucie Green takes us on a journey from the centre of the sun to planet earth in a run-down of the latest solar physics research.
Watch the Q&A here: https://www.youtube.com/watch?v=0JkxTILe2Nk

Lucie's book "15 Million Degrees: A Journey to the Centre of the Sun" is available to buy now - https://geni.us/2oB8V

110 times wider than Earth; 15 million degrees at its core; an atmosphere so huge that Earth is actually within it: come and meet the star of our solar system.

Light takes eight minutes to reach Earth from the surface of the Sun. But its journey within the Sun takes hundreds of thousands of years. What is going on in there? What are light and heat? How does the Sun produce them and how on earth did scientists discover this? Since the Royal Institution was founded in 1799 our knowledge of the Sun has changed dramatically and much of the work was carried out at the Ri.

Join Lucie Green for an enlightening talk, taking you from inside the Sun to its surface and to Earth, to discover how the Sun works, how a solar storm can threaten the modern technology that society relies on and more of the latest research in solar physics.

Lucie Green is a Professor of Physics based at the Mullard Space Science Laboratory, UCL’s Department of Space and Climate Physics. She studies activity in the atmosphere of our nearest star, the Sun. In particular, she looks at immense magnetic fields in the Sun’s atmosphere which sporadically erupt into the Solar System.

Lucie is very active in public engagement with science, regularly giving public talks and appearing on TV shows like Sky at Night.

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