See how Aldosterone acts on the alpha-intercalated cell to remove protons (acid) from the blood. Rishi is a pediatric infectious disease physician and works at Khan Academy.
The video resource "Alexander the Great and the Situation ... the Great? Crash Course World History #8" is included in the "World History" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.
This video is from the Khan Academy subject of Math on the topic of Geometry and it covers Algebraic midpoint of a segment exercise.
How can we improve the speed of a (deterministic) primality test?
Saving Earth from becoming a mushroom farm.
The video resource "Aliens: Crash Course Film Criticism" is included in the "Film Criticism" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.
Out in the vast coldness of outer space, there are planets that travel alone through darkness without the boundaries of a system. Here's how this can happen - and why these frozen deserts might secretly harbor alien life. The video "Aliens under the Ice - Life on Rogue Planets" is a resource included in the Space sciences topic made available from the Kurzgesagt open educational resource series.
This video is from the Khan Academy subject of Science on the topic of Organic chemistry and it covers Alkene intro and stability.
This video is from the Khan Academy subject of Science on the topic of Organic chemistry and it covers Alkene nomenclature.
The video resource "Alkenes & Alkynes - Crash Course Chemistry #41" is included in the "Chemistry" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.
The Book Man has put together this super fun music video to the tune of All About That Bass by Megan Trainor... We present to you... All About Them Books (No Kindle). Who doesn't love the smell of a book, new or used?
Videography by Matthew Hawkins!
Students learn about linear programming (also called linear optimization) to solve engineering design problems. As they work through a word problem as a class, they learn about the ideas of constraints, feasibility and optimization related to graphing linear equalities. Then they apply this information to solve two practice engineering design problems related to optimizing materials and cost by graphing inequalities, determining coordinates and equations from their graphs, and solving their equations. It is suggested that students conduct the associated activity, Optimizing Pencils in a Tray, before this lesson, although either order is acceptable.
Very complete guide of Spain: regions of Spain, city guide, photo tour. In English or in Spanish.
Outline of the 1973 Allende Coup in Chile and Pinochet's Junta (this video under CC-BY-SA)
This video is from the Khan Academy subject of Humanities on the topic of World History and it covers Alliances leading to World War I.
Marginal Utility and maximization
The video resource "Altered States - Crash Course Psychology #10" is included in the "Psychology" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.
The resource "Altering tables after creation" is included in the "Modifying databases with SQL" section of the "Intro to SQL: Querying and managing data" course from Khan Academy. Some of the topics included in this resource are: HTML, SQL, Querying.
Another way to prove the expression for the sum of all positive integers up to and including n
How I subtract in my head