Curated Video
GCSE Biology - Active Transport #9
This lesson covers: - What active transport it - How it's different to diffusion - How root hair cells are adapted to absorb mineral ions Exam board specific info: AQA - Suitable for everyone IGCSE Edexcel - Suitable for everyone Edexcel...
Curated Video
Why turkey is hard to cook
Here's why cooking a turkey is so hard - and how brining can help.
The Business Professor
Diffusion of Innovations Theory
What is the Diffusion of Innovations Theory? Diffusion of innovations is a theory that seeks to explain how, why, and at what rate new ideas and technology spread. The theory was popularized by Everett Rogers in his book Diffusion of...
The Business Professor
Bass Diffusion Model
What is the Bass Diffusion Model? The Bass model or Bass diffusion model was developed by Frank Bass. It consists of a simple differential equation that describes the process of how new products get adopted in a population. The model...
Curated Video
Factors Affecting Diffusion and Fixed Law
This is an educational video that discusses the factors that affect diffusion, which is the process by which particles move from an area of high concentration to an area of low concentration. The video outlines three key factors that...
Curated Video
Transport of Substances in and out of Cells: Diffusion, Osmosis, and Active Transport
In this video, the concept of transport of substances into and out of cells is explained. The different ways in which this process occurs are discussed, including diffusion, osmosis, and active transport. The importance of surface area...
Curated Video
Introduction to Diffusion: Definition, Process, and Factors Affecting Rate
This video provides an explanation of what diffusion is, how it occurs, and how to change the rate of diffusion. The concept of diffusion is demonstrated through the example of a plate of food emitting a smell that travels across a room....
National Institute of Standards and Technology
A Conversation with Dr. John Cahn
On June 24, 2011, it was announced that NIST Emeritus Senior Fellow Dr. John Cahn had been selected to receive the 2011 Kyoto Prize in Advanced Technology for his fundamental contributions to the study of materials. In this interview,...
Curated Video
Diffusion: The Movement of Particles in Liquids and Gases
This is a lecture presentation on diffusion, where the process of diffusion of particles in liquids or gases is explained in terms of kinetic particle theory. The presentation incorporates a mixture of two liquids and a demonstration...
Catalyst University
Fick's First Law (1): Diffusion, Flux, and Concentration Gradients
Fick's First Law (1): Diffusion, Flux, and Concentration Gradients
Catalyst University
Disk Diffusion Test using Bacitracin or Optochin
In this video, I explain how to determine resistance (R) or susceptibility (S) in bacteria using the disk diffusion method (with bacitracin and optochin).
Catalyst University
Fick's First Law (3): Graphical Estimation of Concentration Gradient
Fick's First Law (3): Graphical Estimation of Concentration Gradient
Catalyst University
Type I Alveolar Cells, Respiratory Membranes, & Gas Exchange
In this video, we discuss how gas exchange occurs across the respiratory membrane at the alveoli and how this involves Type I Alveolar Cells.
Catalyst University
Type II Alveolar Cells | Pulmonary Surfactant
Type II Alveolar Cells | Pulmonary Surfactant
Catalyst University
Fick's First Law (2): Flux and Concentration Gradient With Example #1
Fick's First Law (2): Flux and Concentration Gradient With Example #1
Catalyst University
Pulmonary Function Tests (PFTs) | Examples 1 & 2
In this video, do a couple examples of pulmonary function tests for obstructive and restrictive defects.
Science Buddies
Underwater Color Bursts
Summertime often brings beautiful fireworks displays. Whereas you normally look up into the sky to see fireworks, in this activity we will take the bursts of color underwater—with chemistry. Although it is not exactly the same as real...
Curated Video
Diffusion: How Substances Move In and Out of Cells
This video explains how substances move in and out of cells via diffusion, which is the net movement of particles from an area of high concentration to an area of low concentration. The video first defines diffusion and illustrates it...
CTE Skills
HST-AP Introduction to the Respiratory System
The Respiratory System plays a major part in our survival and works hand in hand with the Circulatory System. Respiration for the body can not happen without the circulation of the blood driven by the cardiovascular system. Simply said,...
Catalyst University
Endocannabinoids [Part 3] | Degradation of AEA & 2-AG
In this video, we explore the short degradation pathways for anandamide (AEA) & 2-arachidonoyl-glycerol (2-AG).
Curated Video
Animal Essential Functions
This live-action video program is about the term "animal essential functions". The program is designed to reinforce and support a student's comprehension and retention of the term "animal essential functions" through use of video...
Curated Video
Understanding Transpiration and Its Importance to Plants
The video explains the process of transpiration in plants, which is the loss of water vapor from a plant through evaporation from the surfaces of the plant, mainly the lower surfaces of leaves. The video also explains the role of...
Alltime
8 Facts That Will Save Your Life
The Deep Web is a scary place, full of myth and legend about what you can supposedly obtain from it. Here are some of the scariest things that one can purchase from the darkest depths of the internet.