Curated Video
Equations for Electrical Power Calculation
This video explains the concept of electrical power and presents three equations that can be used to calculate the power of an electrical component. The equations involve variables such as potential difference, current, and resistance,...
Curated Video
Introduction to Reversible Reactions and Equilibrium
This video explains the concept of reversible chemical reactions. It starts by introducing reversible reactions and providing an example of the reaction between ammonium chloride, ammonia, and hydrogen chloride. The video then explains...
Curated Video
Understanding Changes in Internal Energy and Physical States of Matter
This video is a lesson on the physical changes that occur in matter as its internal energy increases. The video describes how the physical state of matter changes as it is heated, from a solid with particles in fixed positions to a...
Curated Video
Understanding Efficiency: Examples and Equations
In this video, the concept of efficiency is discussed in relation to devices that transfer energy from one form to another. The video provides three examples of calculating efficiency, including a light bulb, a speaker, and an electric...
Curated Video
Understanding Power and Calculating Power-Related Quantities
This video provides an explanation of the concept of power, which refers to the rate at which energy is transferred or work is done. The video discusses how power can be expressed in different ways, and highlights the importance of...
NASA
Houston We Have a Podcast: 5,000°F
Ronny Baccus, Orion structures and thermal protection system functional area manager, discusses how Orion deals with temperatures around 5,000°F when screaming back into Earth's atmosphere at 25,000 miles per hour. HWHAP Episode 66.
Curated Video
Practical Applications of Thermistors and Light Dependent Resistors
The video is a lecture focusing on the practical applications of thermistors and light dependent resistors. The video begins with a quick recap of resistors and how they restrict the current flowing through a circuit. The instructor...
Curated Video
Emission and Absorption of Infrared Radiation: Comparing Surfaces as Absorbers Experiment
The video is the second lecture presentation on the emission and absorption of infrared radiation. The presenter discusses the nature of infrared radiation and how it is absorbed and emitted by various surfaces. They then introduce an...
Curated Video
Understanding Energy Dissipation: Minimizing Wasted Energy and Maximizing Energy Efficiency
The video focuses on the concept of energy dissipation and how it occurs in various systems. It begins by explaining the principle of conservation of energy and then goes on to provide examples of closed and open systems. The video then...
Curated Video
Emission and Absorption of Infrared Radiation: An Experiment on the Effectiveness of Different Surfaces as Emitters of Infrared Radiation
This video is a lecture presentation on the emission and absorption of infrared radiation or IR. The presenter walks the viewer through an experiment to compare the effectiveness of four different surfaces as emitters of infrared...
Curated Video
Calculating Efficiency and Energy Transfers for Devices
This video provides an explanation of how to calculate the efficiency of a device by using Sankey diagrams to identify energy transfers and utilizing a formula to find the percentage of useful energy output. The video includes examples...
NASA
Houston We Have a Podcast: Taking the Temperature of Earth
Kerry Cawse-Nicholson from NASA’s Jet Propulsion Laboratory describes the ECOSTRESS experiment aboard the space station that is looking at the Earth to map temperature in plants, urban areas, wildfires and more. HWHAP Episode 213.
NASA
NASA | Exploring Energy: Infrared
How does NASA "see" thermal radiation? This video explores what infrared energy is and how NASA detects it to study our Earth's systems more completely. Satellite measurements over time allow scientists to study seasonal changes in local...
Catalyst University
General Chemistry | System, Surroundings, & Energy Transfer
How do we define the system? The surroundings? In this video, we explore this along with energy transfer between system and surroundings in the forms of heat and work. We also do a sample calculation of total energy (E = q + w).
Curated Video
Heat Pump Selection and Comparison
How to compare heat pumps. In this video on heat pump guide, we look at the different heat pump options, we compare them and look at how to select one. We also compare the energy efficiency for COP, SCOP, EER, HSPF. Air source heat...
Curated Video
Forces and Work: Understanding and Measuring Work Done
The video is a lecture or presentation on forces and work. The speaker defines what work is and provides examples of how energy is transferred from one form to another. The speaker also explains how to measure work and the equation for...
Curated Video
Reducing Unwanted Energy Transfers
The video discusses the concept of unwanted energy transfers and ways to reduce them. The video highlights two examples of how energy is lost through friction and conduction, and presents solutions for each case. For friction,...
Curated Video
Principles of Energy and Energy Transfers
This is a video presentation that discusses the principles of energy. It starts by defining different types of energy stores such as kinetic, gravitational potential, elastic potential, thermal, chemical, electrical, and internal energy....
Curated Video
How Air Handling Units work
Air Handling Units. In this video we'll learn how air handling units or AHU's work. Starting with simple typical examples and increasing to more advanced designs. Covering ductwork, AHU, centrifugal fan, cooling coil, heating coil,...
Curated Video
Thermal Properties of Water: Specific Heat Capacity Experiment
This video is a lecture presentation on the thermal properties of water. The presenter discusses the specific heat capacity of water and how to calculate it using an equation. A student then demonstrates an experiment to determine the...
Curated Video
Supermarket HVAC Basics Explained
HVAC systems used in supermarkets & food retailers. In this video we look at different HVACR systems used in supermarkets & food retail outlets to understand the basics of how they work.
Curated Video
Thermoregulation: How the Body Controls Temperature
This video provides an overview of the body's thermoregulation process, which is responsible for maintaining optimal body temperature for enzyme function. The video explains how the brain's thermoregulatory sensor and temperature...
Curated Video
Data Center Cooling
How are data centers cooled? find out in this video on how data centres are cooled. covering CRAC units, cold aisle containment, hot aisle containment, suspended floor.
Curated Video
Computer Room Air Conditioning - How do CRAC units work?
How do computer room air conditioners work, in this video we learn how CRAC units work for server room air conditioning