Bozeman Science
Multistep Reactions
In this video Paul Andersen explains how an overall chemical reaction is made up of several elementary steps. The stoichiometry of this equation can be predicted but the rate law must be measured. If the elementary steps of the reaction...
SciShow
Building a Base on the Moon
If you've ever dreamed of living on Earth's Moon, we've got an episode for you!
Crash Course Kids
The Life Hydrologic
Last week we went up up up a mountain. Well, today we're going down down down into the ocean to see what habitats await us there. Yep, the ocean has layers and the types of things we encounter there change the deeper we go.
TED Talks
TED: Adventures of an interplanetary architect | Xavier De Kestelier
How will we live elsewhere in the galaxy? On earth, natural resources for creating structures are abundant, but sending these materials up with us to the Moon or Mars is clunky and cost-prohibitive. enter architect Xavier De Kestelier,...
TED-Ed
TED-Ed: Valentin Hammoudi: How tall can a tree grow?
Reaching heights of over 100 meters, Californian sequoias tower over Earth's other 60,000 tree species. But even these behemoths seem to have their limits: no sequoia on record has been able to grow taller than 130 meters. So what...
Crash Course
Determining SN1, SN2, E1, and E2 Reactions: Crash Course Organic Chemistry
Organic chemistry isn’t that different from an adventure game, with substrates as characters, nucleophiles as magic potions, and reaction conditions as different magical kingdoms. In this episode of Crash Course Organic Chemistry, we’ll...
TED Talks
TED: The magic of Fibonacci numbers | Arthur Benjamin
Math is logical, functional and just ... awesome. Mathemagician Arthur Benjamin explores hidden properties of that weird and wonderful set of numbers, the Fibonacci series. (And reminds you that mathematics can be inspiring, too!)
SciShow
Why Can't We Make a Good Salt Substitute?
We have many alternatives to sugar, but where are all the salt substitutes?
TED Talks
David R. Liu: Can we cure genetic diseases by rewriting DNA?
In a story of scientific discovery, chemical biologist David R. Liu shares a breakthrough: his lab's development of base editors that can rewrite DNA. This crucial step in genome editing takes the promise of CRISPR to the next level: if...
TED-Ed
TED-Ed: The dangerous race for the South Pole - Elizabeth Leane
By the early 1900’s, nearly every region of the globe had been visited and mapped, with only two key locations left: the North and South Poles. After two Americans staked claim to reaching the North Pole, a Norwegian explorer and a...
Crash Course
Enols and Enolates - Reactivity, Halogenation, and Alkylation: Crash Course Organic Chemistry
You may know that cows produce methane, which is a big concern when it comes to global heating, but did you know that organic chemistry provides a potential solution to this problem? Feeding cows small amounts of red seaweed can greatly...
SciShow
Here's What DNA Really Looks Like
There’s more to DNA than just the double helix we know and love: under some conditions this familiar molecule can take on unfamiliar forms, each of which can have a different impact on our health.
TED-Ed
TED-Ed: What happens when your DNA is damaged? - Monica Menesini
The DNA in just one of your cells gets damaged tens of thousands of times per day. Because DNA provides the blueprint for the proteins your cells need to function, this damage can cause serious issues-including cancer. Fortunately, your...
TED-Ed
TED-Ed: What would it be like to live on the moon? - Alex Gendler
The European Space Agency is hoping to establish an inhabited research base on the moon by the 2020s. But living in this "moon camp" won't be easy. How will humans deal with the cosmic radiation? What will the inhabitants eat? And what's...
TED Talks
Angelicque White: What ocean microbes reveal about the changing climate
When the ocean changes, the planet changes -- and it all starts with microbes, says biological oceanographer Angelicque White. Backed by decades of data, White shares how scientists use these ancient microorganisms as a crucial barometer...
MinutePhysics
Tutorial - Creating the Sound of Hydrogen
In this tutorial I show how I synthesized the sound of hydrogen for the "Sound of Hydrogen" video using mathematica - it's a little technical, but you've been requesting it!
Bozeman Science
Neutralization Reaction
In a neutralization reaction (or acid-base reaction) a proton is transferred from the Brinsted--Lowry acid to the Brinsted--Lowry base. Water is amphoteric and so it can serve as either an acid or a base in a neutralization reaction. The...
TED-Ed
TED-Ed: Why doesn't the Leaning Tower of Pisa fall over? | Alex Gendler
In 1990, the Italian government enlisted top engineers to stabilize Pisa's famous Leaning Tower. There'd been many attempts during its 800 year history, but computer models revealed the urgency of their situation. The tower would topple...
SciShow
What Is Gravitational Lensing?
Learn more about gravitational lensing with host Caitlin Hofmeister.
Amoeba Sisters
DNA vs RNA (Updated)
Why is RNA just as cool as DNA? Join the Amoeba Sisters as they compare and contrast RNA with DNA and learn why DNA should be sharing the limelight! Table of Contents: 00:00 Intro 0:54 Similarities of DNA and RNA 1:35 Contrasting DNA and...
Amoeba Sisters
Mutations (Updated)
Join the Amoeba Sisters as they explain gene and chromosome mutations, and explore the significance of these changes. This updated video has improved audio and images! Codons and the amino acids they code for is represented by standard...
Bozeman Science
pH and Buffers
In this video Paul Andersen explains how buffer solutions maintain pH in a solution. A buffer solution is made up of a weak acid and its conjugate base. As strong acids or bases are added the pH remains stable. A good buffer solution has...
3Blue1Brown
But why is a sphere's surface area four times its shadow?
Two proofs for the surface area of a sphere