Kahn Academy

I have to take my hat off to Sal Kahn for a truly immense resource. What he has achieved with the Kahn Academy is nothing short of incredible.

He’s single handedly generated 1000+  instructional videos covering subjects including:

• Economics
• Finance
• Chemistry
• Arithmetic
• Pre-algebra
• Algebra
• Geometry
• Biology
• Trigonometry
• Precalculus
• Statistics
• Probability
• Calculus
• Differential Equations
• History
• Linear Algebra
• Physics

What a wealth of information. This has to be place in the category alongside Academic Earth and Udemy.

Evolution of life

This site has a set of aminations to explain aspects of evolution of life.

‘Mutation – selection: the bacteria resistance‘ explains how over use of antibiotics has caused, which in turn meant bacterial mutations led to antibiotic resistance.

‘Darwin on the evolution trail‘ follows Charles Darwin as he embarks on is scientific investigations into diversity and eventual publication of On the Origin of Species.

‘O as Origin‘ follows a water molecule on an asteroid as the planets are created and the first cells evolve.