The sequence of DNA that we inherit from our parents encodes directions for making our cells and giving us specific traits. Identical twins have the same DNA sequence, so how can one twin end up with a genetic disorder while the other...

Your heart beats more than 100,000 times a day. In just a minute, it pumps over five liters of blood throughout your body. But unlike skin and bones, the heart has a limited ability to repair itself. So if this organ is severely damaged,...

You might not need to throw away your broken glasses and get new ones anymore, thanks to these unique materials that can heal themselves!

Volunteer firefighter Mark Bezos tells a story of an act of heroism that didn't go quite as expected -- but that taught him a big lesson: Don't wait to be a hero.

Cell membranes are structures of contradictions. These oily films are hundreds of times thinner than a strand of spider silk, yet strong enough to protect the delicate contents of life: the cell's watery cytoplasm, genetic material,...

Two sisters take the same DNA test. The results show that one sister is 10% French, the other 0%. Both sisters share the same two parents, and therefore the same set of ancestors. So how can one be 10% more French than the other? Tests...

Hank gets down to the nitty gritty about meiosis, the special type of cell division that is necessary for sexual reproduction in eukaryotic organisms.

Astronomers have found a couple galaxies that were much larger than expected, and the Opportunity rover might be in for some harsh Martian weather!

Synesthesia allows people to hear color or taste numbers,and maybe even remember some things better than the average person.

We’ve talked about benzene a bit already in this series, but did you know that benzene rings are present in all kinds of familiar substances? The styrofoam packaging that comes with new appliances, some pharmaceuticals, pesticides, and...

You've know that the Kepler Space Telescope has discovered HUNDREDS of new planets outside our solar system -- but how does it find them? And how do scientists tell the real planets from the celestial fake-outs? It involves a lot of...

From something as small and complex as a chromosome to something as seemingly simple as the weather, sex determination systems vary significantly across the animal kingdom. Biologist and teacher Aaron Reedy shows us the amazing...

Nadine the robot has been unveiled, and as robotics technology gets more advanced, humanoid robots are looking more and more human. In this episode of SciShow News we explore how Nadine works and why a lot of people find it creepy.

Why is it that humans react to stimuli with certain behaviors? Can behaviors change in response to consequences? Peggy Andover explains how the brain can associate unrelated stimuli and responses, proved by Ivan Pavlov's famous 1890...

No one thinks twice about a woman wearing blue jeans in New York City -- but when Nobel laureate Malala wears them, it's a political act. Around the globe, individuality can be a crime, and clothing can be a form of protest. In a talk...

Get to know Pablo Neruda, one of the most celebrated poets of the 20th century and winner of the Nobel Prize in Literature. -- A romantic and a revolutionary, Pablo Neruda was one of the most celebrated poets of the 20th century, but...

Waddling along the parched Australian earth, a female platypus is searching for fresh water. Over the past year, a severe drought turned rivers and streams to mere trickles. She barely survived and was unable to reproduce. Could the next...

New ReviewThis lesson explains the difference between the ideal electric field assumed in most physics problems and the real, nonideal electric field that forms between two finite, conducting parallel plates. Using clear illustrations, I break...

In this math video lesson, students learn how to write the equation of a line parallel to a given line when the original equation is written in slope-intercept form and a point on the parallel line is provided. An exemplar solution is...

In this math video lesson, students learn how to write the equation of a line that passes through a given point and is perpendicular to a given line. The visually modeled solution begins with a review of perpendicular lines, emphasizing...

In this math video lesson, students learn how to use substitution to solve a system of linear equations in a clear, step-by-step way. The problem presents a system along with four possible solutions, and students are asked to determine...

Jalen Brunson speaks on Kobe Brand, what it's like to have his own Kobe PE sneaker, and whether or not he is officially signed to Kobe brand. Hear all this and more in Boardroom's new Cover Story

In this shorts video we will be solving for x using algebra tiles. We will solve a multistep algebraic equation. You will be introduced to algebra tiles where a "long" green tile represents x and the small square tiles represent...

In this shorts math video we will review solving absolute value equations while answering a standardized math test question. We will review the steps to solving an absolute value equation. The first step will be to rewrite the absolute...