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Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascina…

Introduction to pH. Chart from Anatomy & Physiology, Connexions Web site. http://cnx.org/content/col11496/1.6/, Jun 19, 2013. user CC-BY Hi…

How oxidation of co-enzymes like NADH can lead to the production of ATP through oxidative phosphorylation. Biology Life is beautiful! From …

This video outlines in simple terms why a motor controller is needed and what it does Electrical engineering Learn about electricity, circu…

The sign convention for passive components defines what we mean by positive and negative voltage and current. Electrical engineering Learn …

How resonance affects the stability of a conjugate base Organic chemistry Sal and Jay cover topics covered in college organic chemistry cou…

Lactic acid fermentation. How organisms like lactobacillus convert pyruvic acid to lactic acid and oxidize NADH to NAD+ in the process. Bio…

Overview of photosynthesis. What photosynthesis accomplishes, why it's important, and how the light-dependent and light-independent reactio…

Hank explores community ecology, the competitive exclusion principle, and how different species can coexist by occupying different niches. …

data wires allow you to send values directly from input sensors to output devices Electrical engineering Learn about electricity, circuit t…

In this video we explore what is inside a hairdryer, how it is made, and how it works. Electrical engineering Learn about electricity, circ…

Quick overview of Ka and pKa. Example of calculating the pH of a weak acid solution. Chemistry Did you know that everything is made out of …

Newman Projections Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic hig…

Regiochemistry. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic high s…

Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…