"Understanding Concrete Admixtures (Part 1): Types, Functions, and Benefits"
10:28
Special Cementitious Materials (Part 3)
28:37
"Understanding Concrete Admixtures (Part 2): Types, Functions, and Benefits"
14:11
Inside Africa's Food Forest Mega-Project
44:11
Think Faster, Talk Smarter with Matt Abrahams
13:29
Overbudget: Britain's $57BN Nuclear Nightmare
18:35
How Electricity Works - for visual learners
58:20
Think Fast, Talk Smart: Communication Techniques
36:27