Welcome back to SciShow News! Michael Aranda explains how a male's health affects their sperm.

During economic crises, marginalized communities are more susceptible to the harms and struggle that come with these downturns. Today we'll talk about the Great Depression, which lasted from 1929 until the US entered World War II. This...

Science can help create understanding where there is none, but is it possible to study and understand terrorists if we're too busy doing everything we can to stop it? Terrorism is notoriously difficult to study because governments...

We usually think of 'hacking' as a bad thing, but scientists are working on ways to hack the brain that will greatly benefit people with prosthetics, and maybe someday people with paralysis.

Some foundational ideas in linear algebra: Span, linear combinations, and linear dependence.

Creating functional prosthetics at a fraction of the cost of imported tech, bionic innovator and TED Fellow Enzo Romero shares a groundbreaking model for designing 3D-printed assistive technology sourced from recycled materials -- built...

In this video Paul Andersen explains how a rotating system will have several quantities; including torque, angular velocity, angular acceleration and angular momentum. Each of these quantities have a vector property that can be...

The world is getting closer to achieving one of the most important public health goals of our time: eradicating HIV. And to do this, we won't even have to cure the disease. We simply have to stop HIV from being transmitted until...

The average 20-year-old knows between 27,000 and 52,000 different words. Spoken out loud, most of these words last less than a second. With every word, the brain has a quick decision to make: which of those thousands of options matches...

Deepika Kurup has been determined to solve the global water crisis since she was 14 years old, after she saw kids outside her grandparents' house in India drinking water that looked too dirty even to touch. Her research began in her...

Remote mental health services have been around for a while, long before the pandemic. So, we've had plenty of time to study how well they work, and there are some encouraging findings.

A lack of infrastructure in parts of Africa has made unregulated, gas-powered motorcycle taxis widespread -- a system that gets people where they need to be, but heavily pollutes the air and excludes drivers from the formal economy. TED...

You might want to think twice before signing into that too-good-to-be-true "Free Airport Wi-Fi." It might not be what you think it is.

For the first time in history, the majority of American parents don't think their kids will be better off than they were. This shouldn't be a cause for alarm, says journalist Courtney Martin. Rather, it's an opportunity to define a new...

A very clever proof of Euler's characteristic formula using spanning trees.

Today we’re going to talk about on how we organize the data we use on our devices. You might remember last episode we walked through some sorting algorithms, but skipped over how the information actually got there in the first place! And...

Researchers have found ancient communities of microbes that have been buried deep, for a hundred million years! This discovery might be the oldest living thing on Earth, and could even expand the search for life on other planets.

Wanda Diaz Merced studies the light emitted by gamma-ray bursts, the most energetic events in the universe. When she lost her sight and was left without a way to do her science, she had a revelatory insight: the light curves she could no...

Today we’re exploring another branch of conflict theory: gender conflict theory, with a look at sociology’s forgotten founder, Harriet Martineau. We’ll also discuss the three waves of feminism, as well as intersectionality.

International aid groups make the same mistakes over and over again. David Damberger analyzes his own engineering failure in India -- and calls for his friends in the development sector to publicly admit, scrutinize and learn from their...

Want a Pineapple? If you want a pineapple, it's possible you can just run down to the store and get one. But, if you wanted to grow one, that's a lot more difficult depending on where you live. In this episode of Crash Course Kids,...

Ever wondered what it would take to bring down the Internet? Well, not much.

Colon cancer is one of the leading causes of cancer and cancer death in the world. It is also one of the most preventable types of cancer, as it often takes about ten years for a small polyp to grow and develop into a cancerous one. So...

Having your period is exhausting -- and for many people across the world, menstruation is even more challenging because of stigmas and difficulty getting basic hygiene supplies, says social activist Ananya Grover. In this uplifting,...