This episode is another special one on equations that changed the world. 

Einstein’s Theory of Special Relativity is widely known as the world’s most famous equation created by history’s most famous scientist. 

In simple terms the equation reads - E = MC² which states that Energy = Mass x Speed of Light²

This theory predicts the equivalence of mass and energy and a space-time continuum, which fundamentally changed our understanding of the universe and how it works. 

In practical terms, Einstein’s theory ultimately led to the creation of nuclear energy sources – a defining moment in the history of humanity similar to the discovery of fire, because it allowed us to have far greater energy yields than we’d ever had before by splitting the atom…

Today’s guest, Kalid Azad, is the founder of Better Explained, one of the world's most popular maths websites that makes hard concepts easy to understand. After studying Computer Science at Princeton, Kalid spent a few years at Microsoft as a program manager, founded a Y Combinator startup, and currently works as a developer.

Kalid uses an intuition first approach to explain difficult ideas in a way that anyone can understand and this makes him the perfect guide for this episode. In this episode we discuss:

- Einstein’s backstory and how it influenced his work
- The mechanics of the equation in a way that you can understand
- The implications of the equation for our view of the Universe

So whether you’re looking to find out more about Einstein, dive deeper into the equation and its importance, or explore maths and physics in a way that’s fun and accessible, this episode has you covered. 

What I've found from experience is that presenting on and off camera is both a science and an art.

As an academic tutor and university lecturer I’ve spent plenty of time standing up and presenting to students, and I've now racked up plenty of hours in front of the camera by creating my own online course, Make Me A MetaLearner, and teaching on my YouTube channel.

To improve my skills, I've studied some of the best presenters, both past and present, to try and find out what they did differently.

What I discovered is that they all followed certain rules, despite having very different individual styles, which have been developed through years of consistent deliberate practice.  

These rules apply whether you’re a beginner who’s presenting for the first time, or an experienced pro who’s spoken plenty of times before.

In this episode I'm joined by writer videographer and all around MetaLearner Will Reynolds and we discuss:

- How to create a consistent presenting style and tone
- How to manage your energy levels to come across well
- How to optimise your body language for maximum impact

So whether you're looking to get in front of the camera or want to nail a presentation at work, this episode has you covered.