SciShow
Some Mammals Can Just… Pause Pregnancy
We generally think of pregnancy as a continuous process, but scientists have recently discovered mechanisms that allow for certain mammals to put the development of a fetus on pause.
TED-Ed
TED-ED: How memories form and how we lose them - Catharine Young
Think back to a really vivid memory. Got it? Now try to remember what you had for lunch three weeks ago. That second memory probably isn't as strong-but why not? Why do we remember some things, and not others? And why do memories...
Crash Course
Substitution Reactions - SN1 and SN2 Mechanisms - Crash Course Organic Chemistry
We’ve already learned a bit about substitution reactions in organic chemistry and the two different paths they can follow: SN1 and SN2. In order to better predict the products of a substitution reaction and understand how they work, we...
SciShow
What We’re Learning from the Brightest Supernova Ever Seen - SciShow News
It’s been a great week for space explosions! Astronomers learned more about the mechanism that causes novas by looking at the nova V906 Carinae, and the brightest supernova ever recorded shed some new light on pulsation pair-instability.
Crash Course
Alkyne Reactions Tautomerization - Crash Course Organic Chemistry
Carbon-carbon double bonds are pretty common in nature, but triple bonds between carbons, called alkynes, are not. When alkynes do pop up in nature, it’s usually in a compound that’s toxic to humans, however, we can synthesize alkynes...
SciShow
We Finally Know How Anesthesia Works
Even though doctors have been using general anesthesia for nearly 200 years, they haven’t really understood the details of how it temporarily shuts down your brain — until now.
Amoeba Sisters
Speciation
Explore speciation with The Amoeba Sisters. This video discusses sympatric and allopatric speciation and covers several types of isolation types including behavioral, temporal, and habitat isolations. Table of Contents: Intro 00:00...
Bozeman Science
Engaging in Argumentation
In this video Paul Andersen explains how to have your students engage in argumentation in the science classroom.
Crash Course
Intro to Electrophilic Aromatic Substitution: Crash Course Organic Chemistry
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...
Crash Course
Diazonium Salts & Nucleophilic Aromatic Substitution: Crash Course Organic Chemistry
Have you ever wondered where cured meats like salami or pepperoni get their bright red color? Of course its from organic chemistry! A chemical called nitric acid gives them that bright color, while also increasing their shelf. It's also...
SciShow
That’s Not a Rattlesnake… It’s an Owl!
When living underground leaves them vulnerable to attack, burrowing owls have a trick up their sleeve—they’ve developed the ability to mimic rattlesnake sounds that scare off predators!
SciShow
Why Can Severe Pain Make You Vomit?
Nausea and vomiting are common side effects of severe pain, but why do our bodies do this!?
SciShow
Did We Find Longitude Thanks To A...Clock?
The equator is a clear and accurate line around Earth that makes measuring latitude a precise science, but when it came to figuring out how to do that with longitude, British sailors were at a loss. Until they devised a competition.
SciShow
Plants That Keep Themselves Warm
Sometimes, plants do unexpected things. Like control their own body temperature.
Bozeman Science
Concept 2 - Cause and Effect
In this video Paul Andersen explains cause and effect its importance in science and engineering. He starts by addressing the chain of interactions that must be present to show cause and effect. He addresses the assumptions of...
Curated Video
Basics of Chatbots with Machine Learning & Python - Mechanism of Chatbots
New ReviewLet's understand the mechanism of how a chatbot works. It needs a predefined goal or objective to function, draft potential solution flows, validate examples, define the solution flows, and launch the chatbot.
Curated Video
What Is Potiga & How Does It Treat Epilepsy?
Howcast - Learn about the epilepsy medication Potiga from Steve Wolf, MD and Patty McGoldrick, NP in this Howcast video.
Curated Video
How to Make a Pop-Up Scrapbook Page
Howcast - Scrapbooking is a great a hobby, but sometimes you need to spice it up. Check out how to get your scrapbook pages to literally pop.
Curated Video
How to Make a Christmas Tree Pop-Up Card
If you want to make a homemade Christmas card and save some money, here's a great way to add some fun to it.
Curated Video
How To Make a Hybrid Pepper Mill with Mallee Burl
Woodturning this incredible hybrid pepper mill out of epoxy resin and mallee burr / burl. Used silver and purple epoxy metallic pigments for this project to get this very unique colour combination. Used crash grind ceramic mechanism and...
Curated Video
Mismatch Repair of DNA
Mismatch repair (MMR) is a DNA repair mechanism that corrects base-pairing errors and small insertions or deletions that escape proofreading during DNA replication. A protein complex identifies the mismatch, excises a section of the...
Professor Dave Explains
Catalytic Hydrogenation of Alkenes and Alkynes
When we discussed basic information regarding homogeneous and heterogeneous catalysis, we mentioned hydrogenation of alkenes in both of these contexts. Now let's get more specific and describe the mechanism of this precise catalysis in...
Curated Video
Double Loop
It's racing day! Toy cars race on a track with a giant double loop and an acceleration mechanism. Ready, set, go!
The Business Professor
Marketing Controls
What are Marketing Controls? Marketing control involves setting a desired standard, measuring deviations from the standard and taking the appropriate action. In many cases the standard is expressed in terms of budgets and any substantial...