Concrete: The World’s Most Used Man-Made Material – Explore the Chemical Reactions That Create Concrete from Cement, Water, And Aggregate, Its Strength, Durability, And Versatility as a Building Material, And Its Absolutely Dominant Role in Global Construction, Shaping the Built Environment Worldwide.

Concrete: The World's Most Used Man-Made Material - A Lecture (Professor stands at a podium, wearing a slightly dusty hard hat and sporting a mischievous grin. A slide behind them…

Atheism and the Search for Meaning in a Material World – Explore How Atheists Find Meaning, Purpose, And Value In Life Without Belief In A Transcendent God Or Afterlife, Examining Secular Philosophies And Approaches To Living A Meaningful Life Based On Humanism, Relationships, Science, Art, Or Social Contribution.

Atheism and the Search for Meaning in a Material World: A Lecture for the Terminally Curious (Welcome Music: Upbeat, slightly cheeky instrumental. Think "The Science Show" theme, but with a…