The chemical process industry uses many different types of equipment to manufacture products. At first glance a process plant may just look like a pile of metal and a maze of pipes. In this procedure we will take a closer look and...

Using the water pump analogy to explain electricity.

In this video, we discuss how to interpret a cardiac pressure-volume loop (curve) as it relates to the cardiac cycle.

More than 120,000 people are on the national organ transplant waiting list, and the list continues to grow. To meet this need, Miromatrix Medical, a small business funded by the National Science Foundation (NSF), is developing a...

This Arduino tutorial was created by Programming Electronics Academy. We are an education company who seek to help people learn about electronics and programming through the ubiquitous Arduino development board.

This video explains the basic anatomy, physiology, and mechanics behind a heart attack, also known as a myocardial infarction. It discusses how the heart works, the role of the coronary arteries, and the symptoms and treatment of a heart...

Part II of The Scientific Revolution explores the latter half of this movement and the gradual acceptance of scientific truth. This fascinating period of history chronicles European society's emergence from church domination that...

Liquid crystals are a kind of matter that exists somewhere between a liquid and a solid. We can control the order of the liquid crystals used in liquid crystal displays with electricity. Think of it like a valve for light. We can open...

Globe valves are an important fixture to understand because improper installation and operation can lead to leakage from piping, causing extensive damage and requiring maintenance. Globe valves are a highly common control...

Snakes on a NASA plane! No, not that kind of snake. Donald Blake from the University of California Irvine with the #EarthExpedition ATom mission explains why "snakes" are part of the Whole Air Sampler from behind the scenes on the DC-8...

They aren't quite liquids or solids, but they'll definitely be a force for the future. This animated series of short videos acts as a video glossary to define specific scientific terms or concepts in a fun, easy to understand way. In...

This human body video lesson is all about our bones and how they support us. Students will love this engaging and interactive video.This video serves as a great introduction or review video for your learners.

Ludovico Einaudi | The Greatest Composer You've Never Heard Of

Do you know how transistors work? What is it about transistors that make them the building block of so many electronic items, like computer, laptops, smartphones and tablets these days? What is a transistor? The transistor is arguably...

In this video, we're going to learn about solenoid valves. Solenoid valves are used in a variety of applications, including air conditioning, water supply, and oil production. We'll also learn about the basics of valve operation and how...

Learn the basics of temperature control in HVACR systems, heating and cooling system thermostat temperature control basics

Heart Valves

How do we used deadbands to control temperature in hvac heating and cooling systems?

NASA's Goddard Space Flight Center in Maryland and Kennedy Space Center in Florida are joining teams and efforts to test new robotic refueling technologies that could help satellites live longer in space. During the test, a robotic...

Heart Anatomy

The cardiac cycle looks at all of the things that happen from the beginning of one heartbeat to the beginning of another. Phase 2 of the cardiac cycle is called Isovolumetric Ventricular Contraction. We cover the QRS complex of the EKG,...

We all know that the heart beats. We don't even need to think about it - it just happens. But, there are many details that need to come together in order for it to happen efficiently and effectively.



In this videos, Leslie...

In this video, I go through the process of how blood flows through the heart. It shows blood entering via the vena cave to the Right atrium, then getting pumped into the right ventricle, to the pulmonary vein to the lungs, to the left...

In this video, I talk about the isovolumetric contraction of the ventricles. Once the signal travels to the ventricles, the ventricles contract. However, the valves remain closed until the pressure builds up high enough to open those...