You may have heard of first and second-hand smoke but did you know about third hand and after smoke? NIST scientists have measured how much chemical airborne emissions we are exposed to once a cigarette but has been “extinguished." Learn...

In this short video, Dr Greg Martin discusses Case Control and Cohort studies. He compares the strengths of each study design and describes when each of them would be a preferred research method.

Did you know that there are more microbes inside of you than there are cells that belong to your own body? There are tons of those critters all over the place! But don't freak out, most of them are actually helping you. They protect you...

Part three of our six-part series on vaccinations, supported by the National Institute for Health Care Management Foundation, dives into the immune system. We explore some of the ins and outs of this system, how it responds to viruses,...

In this video, the different forms of radioactive emissions are discussed, including alpha particles, beta particles, and gamma radiation. The potential uses of nuclear radiation in medicine and its potential hazards are also explored....

The Vera C. Rubin Observatory is perhaps the next most exciting observatory to the James Webb Space Telescope.

A new study on endocrine disruptors, pregnancy, and heritable ADHD and other neurodevelopmental issues. Women exposed to endocrine disruptors seem to be able to pass ADHD and other disorders onto their grandchildren! That is unusual.

It explains oxidation and reduction in terms of electrons. It also talks about corrosion and rancidity.

Epidemic curves are a visual representation of the onset of cases in an outbreak. In this video Dr Greg Martin explains how to interpret and epidemic curve for point source outbreaks, common source outbreaks and propagated outbreaks....

Complete Guide to Milky Way Photography

In this video, the teacher explains the difference between correlation and causation by discussing the role of linking and lurking variables. They provide examples to illustrate how two variables can be correlated without one causing the...

Public Health professionals and epidemiologists often do risk calculations. These might include risk ratios, absolute risk, relative risk and risk differences. In this video, Dr Greg Martin teaches how to understand and calculate risk....

So far in this CTE Skills Anatomy and Physiology series we've covered the main parts and the main functions of the integumentary system. In part 3 we will be going over the diseases of the skin.
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Acne, Skin Cancer, Athletes...

Most of us know about anthrax either because of the terrorism involving sending anthrax in the mail, or because of the metal band by the same name. But let's get a closer look at the actual bacterium, Bacillus anthracis.

Hello everyone, I'm back with another video, this time, covering aperture in two minutes. I go over some key questions including, "What is aperture?" "How does aperture affect exposure?" How does aperture affect depth of field?" and...

Ever seen something while you're out shopping that absolutely must have, but you don't know why? Well it all comes down to clever advertising. From psychological priming to staring mascots, here's 10 Advertising Tricks That Actually Make...

What happens to cells for cancerous growths to occur? Your body is made up of millions and millions of cells. In fact there are between 50 and 75 trillion cells in the body. These cells are dying and being replaced all the time. Cancer...

This week, Aaron looks at studies on how health care workers' incomes compare to the rest of the population and to each other. Also, there's a new study out showing to many kids are victims of violence, and King v Burwell has been...

In 1918 and 1919, the world took on a new, invisible enemy: the so-called "Spanish flu" pandemic sweeping the globe. The pandemic left tens of millions of casualties in its wake as it devastated one community after another. Given the...

This live-action video program is about bioaccumulation. The program is designed to reinforce and support a student's comprehension and retention of the term through use of video footage, photographs, diagrams and colorful, animated...