Why Is The Measles Virus So Contagious?

You might be surprised to hear that measles is 10 times more contagious than Ebola or the plague. How do epidemiologists quantify a disease’s catchiness? Hosted by: Stefan Chin SciShow has a spinoff podcast! It’s called SciShow Tangents. Continue reading

Human Experimentation: The Good, The Bad, & The Ugly

In the early days of the space race, agency researchers in Russia and at NASA really weren’t sure all what would happen to an astronaut in space. They didn’t know if a human mind could handle actually seeing Earth or what would happen to the human body when exposed to long periods of weightlessness. Continue reading

How Do Hand Sanitizers Work?

The labels always read, “Kills 99.99% of Germs!” but does the science of hand sanitizers back it up? Today we’re taking a closer look at what this goo is made of, and just how effective it really is against viruses and bacteria. Continue reading

Why is it so hard to cure cancer? – TED-Ed by Kyuson Yun

We’ve harnessed electricity, sequenced the human genome, and eradicated smallpox. But after billions of dollars in research, we haven’t found a solution for a disease that affects more than 14 million people and their families at any given time. Why is it so difficult to cure cancer? Kyuson Yun explains the challenges. Continue reading