SciShow
Should I Wear Sunscreen in the Winter?
DNA damage doesn't just happen in the summer, but does that really mean we should wear sunscreen in the cloudy and chilly months?
Bozeman Science
Genotypes and Phenotypes
Paul Andersen explains how changes in the genotype of an individual can affect the phenotype. He begins with genotype:phenotype::letters:story analogy. He explains how mutations can be neutral, beneficial or harmful. He also explains how...
TED Talks
TED: The world in 2200 | Pete Alcorn
In this short, optimistic talk from TED2009, Pete Alcorn shares a vision of the world of two centuries from now -- when declining populations and growing opportunity prove Malthus was wrong.
SciShow
How DNA Analysis Led Police to the Golden State Killer
The Golden State Killer was finally caught last week after more than 40 years, but the science behind it wasn’t just your everyday DNA forensics.
SciShow
Why Is Salt So Bad for You, Anyway?
You've probably been told that eating too much salt is bad for you, especially if you have high blood pressure. But what exactly does salt do to our bodies that can make it so hard on our hearts?
SciShow
What Causes Morning Sickness?
If you've ever been pregnant, or been around a pregnant lady, you know that the agony that is morning sickness -- and it's not just something that happens in the morning! SciShow explains the many theories about what causes it.
SciShow
Why Do Our Bones Make Our Blood?
Our bones are multi-functional body builders, but perhaps their most mysterious function is the production of blood. Scientists now think they have a pretty good idea why this is where our blood gets made.
SciShow
Antlers: The Secret to Deer's Cancer-Fighting Superpowers
Antler cells divide really fast, and with their super-fast growth, antlers resemble tumors in some ways. But animals in the deer family are less likely to get cancer than many other organisms, and a recent genetics study may have...
SciShow
The Real Philosopher's Stone: Turning Lead into Gold
With scientists’ efforts and their creativity, we finally found “the real philosopher’s stone.” That's right, we can now turn lead into gold... a little bit.
TED Talks
TED: The brain science of obesity | Mads Tang-Christensen
Your belly and your brain speak to each other, says obesity researcher Mads Tang-Christensen. Offering scientific proof that obesity is a disease influenced by genetics and the environment, he introduces a molecule discovered in both the...
SciShow
The Best Atomic Clock Ever Built?
Turns out, two atomic clocks are indeed better than one. And what role does sleep play in memory suppression?
TED Talks
Jessica Ochoa Hendrix: How virtual reality turns students into scientists
Using low-cost virtual reality, education activist Jessica Ochoa Hendrix helps bring science to life in schools across the US. In this quick talk, she explains how a VR experience she developed invites students to explore underwater...
SciShow
8 Boss Invertebrates That Eat Whatever They Want
Even if you’re tiny, you can still be fierce. Here are 8 little invertebrates who punch above their weight class at dinner time. CHAPTERS View all DRAGONFLIES 0:46 REGAL JUMPING SPIDER 1:43 EPOMIS BEETLES 2:49 PRAYING MANTIS 4:34 BOBBIT...
SciShow
Dyslexia: When Your Brain Makes Reading Tricky
While many researchers are focusing on finding a difference in brains of people with dyslexia, some new research suggests it might not just be in their brains, but in their eyes.
SciShow
Why Do Women Live Longer Than Men?
Evidence strongly suggests that men have, on average, a shorter lifespan than women, but scientists aren't exactly sure why that is. Check out today's QQ to learn more about this mortality mystery.
SciShow
Your Pee is Pollution
Ever wonder what happens after you flush? You should, because your pee is causing problems! Hank talks about how, and why, human waste is having weird effects on the natural world. We're talking homicidal fish and hermaphroditic frogs...
SciShow
The Science of Flint's Water Crisis
The water crisis in Flint, Michigan is a prime example of science being ignored, unknown, or even misused. Here's the chemistry behind how so many things went wrong.
SciShow
Lead: The Original Artificial Sweetener
Lead is really useful when you add it to things like paint and gasoline. Problem is, it's also poisonous.
SciShow
A Brief History of Birth Control
Gym teacher Hank gives us the full story of the past, present, and future of birth control.
TED-Ed
TED-Ed: How does asthma work? - Christopher E. Gaw
More than 300 million people around the world suffer from asthma, and around 250,000 people die from it each year. But why do people get asthma, and how can this disease be deadly? Christopher E. Gaw describes the main symptoms and...
TED-Ed
TED-Ed: What is obesity? - Mia Nacamulli
Obesity is an escalating global epidemic. It substantially raises the probability of diseases like diabetes, heart disease, stroke, high blood pressure, and cancer. But what is the distinction between being overweight and being obese?...
Bozeman Science
Agriculture
In this video Paul Andersen describes the pros and cons of industrial agriculture including: monocropping, irrigation, and the use of pesticides, fertilizers, and GMOs.
SciShow
Does Stretching Before Exercise Actually Help?
It seems like a good idea to stretch before exercising, but does it actually prevent injuries, or improve your performance?
TED Talks
TED: How to talk (and listen) to transgender people | Jackson Bird
Gender should be the least remarkable thing about someone, but transgender people are still too often misunderstood. To help those who are scared to ask questions or nervous about saying the wrong thing, Jackson Bird shares a few ways to...