TED Talks
TED: The African swamp protecting Earth's environment | Vera Songwe
The peatlands of Africa's Congo Basin are a vast expanse of swamp and greenery that act as one of the world's most effective carbon sinks -- and they're under threat of environmental destruction. Economist Vera Songwe explains how...
TED Talks
Steven Cowley: Fusion is energy's future
Physicist Steven Cowley is certain that nuclear fusion is the only truly sustainable solution to the fuel crisis. He explains why fusion will work -- and details the projects that he and many others have devoted their lives to, working...
SciShow
Is There a Way to Sober Up Faster?
You may be aware of certain hacks to sober up, but researchers have found a way to actually get booze out of our systems faster. And this discovery could help first responders when facing alcohol overdoses.
Crash Course
Nucleophiles and Electrophiles - Crash Course Organic Chemistry
Organic reactions are kind of like carefully choreographed fight scenes, and nucleophilic attack is a key move. This episode of Crash Course Organic Chemistry is all about nucleophiles and electrophiles, or what happens at those...
Bozeman Science
Photosynthesis and Respiration
Paul Andersen details the processes of photosynthesis and respiration in this video on free energy capture and storage. Autotrophs use the light reactions and the Calvin cycle to convert energy from the Sun into sugars. Autotrophs and...
TED-Ed
TED-ED: Nature's smallest factory: The Calvin cycle - Cathy Symington
A hearty bowl of cereal gives you the energy to start your day, but how exactly did that energy make its way into your bowl? It all begins with photosynthesis, the process that converts the air we breathe into energizing glucose. Cathy...
Bozeman Science
Lewis Diagrams and VSEPR Models
In this video Paul Andersen explains how you can use Lewis Diagrams and VSEPR Models to make predictions about molecules. The Lewis diagrams are a two-dimensional representations of covalent bonds and the VSEPR models show how the...
Bozeman Science
Atomic Nucleus
In this video Paul Andersen explains how the structure of the nucleus influences the properties of the atom. The number of the protons determines the kind of element. Isotopes are formed when the number of protons remain the same but the...
SciShow
5 Mysteries Science Created... and Then Solved
Asking questions almost always leads to finding answers, but those answers will often pose even more questions. Here are five mysteries started and later solved by science.
SciShow
The Siberian Traps: A 250 Million Year Old Crime Scene
The event that killed the dinosaurs 66 million years ago might be the most famous mass extinction ever, but it's not the only one in Earth’s history, nor is it the worst... not by a long shot.
SciShow
The Past, Present, and Future of Carbon Dating | Compilation
Carbon dating is a lot more than just getting the age of a dinosaur bone. We can learn a lot about the world through its use, and it turns out, we have.
SciShow
Fecal Shields, and 5 Other Ways Animals Use Poop
Proud of what you just did in the bathroom? You should be, but here are 6 animals who are masters of the art of pooping!
Bozeman Science
Radiocarbon Dating
Mr. Andersen explains how carbon-14 dating can be used to date ancient material. The half-life of radioactive carbon into nitrogen is also discussed.
Crash Course
Synthesis, Distillation, & Recrystallization: Crash Course Organic Chemistry
We’re going back to the lab! So far we’ve learned some important lab techniques that organic chemists might use day to day, like chromatography and proton NMR, but there are even more to learn. In this episode of Crash Course Organic...
SciShow
How the First Stars Transformed the Universe
The first stars turned all the neutral hydrogen in the universe back into ions, created a bunch of new elements, and just generally made a mess. But without them, you wouldn’t be here.
SciShow
Why Do Razor Blades Dull so Quickly?
If you shave regularly, you may have noticed your razor blades don’t cut as well after just a few uses. But why do razors get dull so quickly?
TED Talks
TED: Hopeful lessons from the battle to save rainforests | Tasso Azevedo
Save the rainforest is an environmental slogan as old as time — but Tasso Azevedo catches us up on how the fight is actually going these days. Spurred by the jaw-dropping losses of the 1990s, new laws (and transparent data) are helping...
Bozeman Science
Biogeochemical Cycling
Paul Andersen explains how biogeochemical cycling is used to move nutrients from the environment into living material and back again. He explains the water cycle, the carbon cycle, the nitrogen cycle and the phosphorus cycle. He also...
TED Talks
TED: Why healthy soil matters now more than ever | Jane Zelikova
From nourishing our foods to storing massive amounts of carbon, soil is teeming with diverse microbial life that could slow global warming. Climate change scientist Jane Zelikova calls for agricultural practices that protect Earth's soil...
SciShow
Where Does the Candle Wax Go?
While not used much any more as a primary source of light, candles are still everywhere, from an aroma in a bathroom to a mood during dinner. That is, until they’re gone.
SciShow
Could Humans Ever Breathe Water?
Wouldn’t it be wonderful if we could breathe underwater? But is it even possible?
Bozeman Science
Reversible Reactions
In this video Paul Andersen describes how reversible reactions achieve equilibrium as reactants are converted to products and products are converted to reactants. A model shows how forward reaction rates and reverse reactions rates...
SciShow
Zombie Fires Are on the Rise
Fire seasons can be bad enough on their own, but it turns out sometimes forest fires that appeared to be dead, turn out to have just been lying in wait.
Crash Course
More Organic Nomenclature Heteroatom Functional Groups - Crash Course Organic Chemistry
Oxygen is pretty dang amazing! Some of the most intensely studied functional groups in organic chemistry have oxygen atoms. In this episode of Crash Course Organic Chemistry, we're building on the last episode's discussion of...