SciShow
A Plastic That Conducts Electricity?
Plastics usually stop electricity in its tracks, but scientists have figured out a way to keep the electrons flowing. Hosted by: Hank Green
SciShow
Blue Is Pretty Special: How Nature Gets the Blues
It's really difficult for life to create blue pigments, but the color can appear in a handful of compounds that create just the right conditions to reflect blue photons.
Amoeba Sisters
Bacteria (Updated)
Let the Amoeba Sisters introduce you to bacteria! This video explains bacterial structure, reproduction, and how not all bacteria are "bad!" Video also briefly mentions endospores, plasmids, and bacteria transformation. Table of...
Crash Course
Conjugation & UV-Vis Spectroscopy: Crash Course Organic Chemistry
Carrots get their orange-y color from, you guessed it, an organic chemical. This chemical, called beta carotene, gets its pigment from its conjugated electron system. We’ve talked some already about conjugation, but in this episode of...
SciShow
What’s the Deal with Antibiotics and Birth Control
You might have heard that you should use a back-up method of protection if you’re taking birth control pills and antibiotics at the same time. Turns out, you might not have to worry about it.
SciShow
A Plastic That Conducts Electricity?
Plastics usually stop electricity in its tracks, but scientists have figured out a way to keep the electrons flowing.
Crash Course
Aromaticity, Hückel's Rule, and Chemical Equivalence in NMR: Crash Course Organic Chemistry
If you’ve been paying attention so far in this series, you’ve probably heard of benzene. This molecule is flat, cyclic, and belongs to a special class of compounds known as aromatics. In this episode of Crash Course Organic Chemistry,...
Bozeman Science
Mechanisms that Increase Genetic Variation
Paul Andersen describes mechanisms that increase the genetic variation within a population. He begins by discussing how horizontal transfer can move genetic material between bacteria. Transformation, transduction, and conjugation in...
Curated Video
Mesomeric Effect (+M): How Phenol Releases Electrons
The +M effect refers to electron donation through resonance, as seen in phenol where the hydroxyl group donates electrons into the benzene ring. This increases electron density in the ring and impacts reactivity and acidity
Curated Video
Resonance in Action: Bond Length, Acidity & More!
Resonance has far-reaching effects on molecular properties. It can equalize bond lengths, making double bonds longer and single bonds shorter than expected. It also stabilizes charged species, influencing acidity and basicity. For...
Curated Video
Pi-n Conjugation: Unlocking the Secrets of Molecular Stability
Pi-n conjugation occurs when a lone pair of electrons (n) interacts with a pi system, enhancing electron delocalization. This conjugation stabilizes the molecule, as the lone pair contributes to the overall resonance. Pi-n conjugation...
Curated Video
Conjugated Systems: Where Resonance Comes to Life
Conjugated systems consist of alternating single and double bonds, which enable the delocalization of pi electrons over multiple atoms. This delocalization stabilizes the molecule and can affect properties like bond length, reactivity,...
Learn German with Herr Antrim
“haben” and “sein” in the Past Tense (Präteritum Guide) - A2/B1 German Grammar
Welcome to the ultimate guide on mastering 'haben' and 'sein' in the Präteritum tense! 🇩🇪 Why watch this video? In this comprehensive lesson, I, Herr Antrim, will guide you through the nuances of using two of the most essential verbs in...
Learn German with Herr Antrim
Deutscher Essen-Wortschatz #1 (German Food Vocabulary #1) - Deutsch lernen
This is the 5th video about chapter 6 from our German 1 book. In this video I explain how to conjugate essen. I also talk about some more food vocabulary and talk about how to answer the question "Wie schmeckt's?"
Learn German with Herr Antrim
Sollen & Müssen - 3 Minuten Deutsch #23 - Deutsch lernen
This video is about the difference between sollen (should, to be supposed to, ought to) and müssen (must, to have to) in German.
Learn German with Herr Antrim
Past Tense of Modal Auxiliaries - 3 Minuten Deutsch #44 (English) - Deutsch lernen
In this video I explain how to use the modal verbs in the past tenses (das Perfekt & das Imperfekt).
Learn German with Herr Antrim
Stem-Changing Verb Song - Lied - Deutsch lernen
I decided to write a song about the stem changing verbs in German. This video is also a parody of the song "Changes" by David Bowie. Sorry for my aweful singing voice. There is only so much I can do about that. If you think you can do it...
Learn German with Herr Antrim
Lyrical Analysis: Introduction - German Learning Tips #18 - Deutsch lernen
In this video I introduce you to the idea of using music to learn German grammar and vocabulary.
Learn German with Herr Antrim
Simple Past of "Haben" - 3 Minuten Deutsch #43 (English) - Deutsch lernen
Learn how to use the simple past (das Imperfekt, preterite) tense with the verb "haben".
Learn German with Herr Antrim
#3 Conjugation of Haben & Sein (GwP1) - Deutsch lernen
This is the third video in my German with Puppets Series #1. This one covers the very important German verbs "haben" and "sein".
Learn German with Herr Antrim
Simple Past Regular Verbs - 3 Minuten Deutsch #45 (German)
In this video I will teach you about the regular conjugation of verbs in the simple past tense (Imperfekt) in German.
Learn German with Herr Antrim
50 Popular German Verbs Present Tense Conjugation - German Learning Tips (Bonus Video)
These are the top 50 most popular verbs in the German language conjugated in the present tense. If you want to know the conjugation of some German verbs and you want to make sure that you are conjugating them correctly or that the verbs...
Learn German with Herr Antrim
German Irregular (Strong) Verbs Present Tense - Deutsch lernen
This is a brief overview of the stem changing verbs in the present tense (also known as the irregular or strong verbs). This video is meant for my German 1 students in the 8th chapter.
Learn German with Herr Antrim
Mögen, Möchten, Wollen: Conjugation, Meaning, Differences & Usage
Ever come across the words “mögen”, “möchten” and “wollen” in your German learning journey? What is the difference? How do you use them? What is the difference between mögen and gern haben? Or what about the difference between mögen and...