The video resource "3D Graphics: Crash Course Computer Science #27" is included in the "Computer Science" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.

Remember that a good diet, exercise, losing weight, and quitting smoking can lower blood pressure! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Many people choose to avoid the flu vaccine each year. Review five popular excuses, and how they relate to common misunderstandings about the flu. Rishi is a pediatric infectious disease physician and works at Khan Academy.

See how ADH acts on blood vessels and the kidney to raise blood pressure. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Learn the key triggers for ADH secretion. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Using what we know about takeoff velocity and runway length to determine acceleration

This video is from the Khan Academy subject of Science on the topic of Cosmology and astronomy and it covers Accreting mass due to gravity simulation.

Acetic Acid to Acetyl Chloride mechanism. Can be generalized to forming any acid halide from a carboxylic acid

See how muscle cells in the heart contract by allowing Calcium to flow inside and bringing along some positive charge with it! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Find out how the pacemaker cells use the movement of sodium, calcium, and potassium to get your heart beating! Rishi is a pediatric infectious disease physician and works at Khan Academy.

See how Renin and ACE work to cut Angiotensinogen down to size! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Learn about how resistance can be added up in series and in parallel (similar to electrical circuits!). Rishi is a pediatric infectious disease physician and works at Khan Academy.

Here's a chance to see if you can combine what you know to add up resistance in series AND in parallel. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Dr. Mahadevan from Stanford School of Medicine explains adequacy for lateral cervical (neck) x-rays

The video resource "Advanced CPU Designs: Crash Course Computer Science #9" is included in the "Computer Science" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.