Professor Dave Explains
Welcome! I have a knack for explaining stuff and I want to share some knowledge with you.I received a BA in chemistry from Carleton College, and performed graduate studies in both synthetic organic chemistry and science education at Cal State Northridge, receiving an MA in the latter. Prior to this I taught for about a decade in various high school and undergraduate settings, specializing in organic chemistry but also teaching general chemistry, physics, and biology.This channel is for students at the high school and undergraduate level, but it is also for members of the general public who just...
Heat and Temperature
We all know what it's like to feel hot or cold. But what is hot? What is cold? What is heat? What does temperature really measure? Don't pretend like you haven't lost sleep over this. Well you don't have to fret any longer, Prof Dave will take you through the details.
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http...
Reacting to Dr. Mike and the RFK Jr. Supporters
Use code professordave at https://incogni.com/professordave to get an exclusive 60% off.
Remember when Dr. Mike took on the 20 anti-vaxxers in the Jubilee thing? I reacted to it and everybody thought that was a grand old time. Then he went on there again to debate RFK Jr. supporters. A little redundant, since there is 100% overlap between those groups, but who cares? Another several hours of stupidity and insanity to react to! A lot of you asked for this one, so please enjoy as my holiday gift to you!
My comprehensive RFK Jr. video: https...
Recording Legible Fingerprints
We know a lot about fingerprints by now, but how do we record them? It can be done manually or digitally, and there's actually quite a bit to the technique! Let's run through the protocol now.
Script by Kuldeep Kawar
Watch the whole Forensic Science playlist: http://bit.ly/ProfDaveForensic
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology/Genetics Tutorials: http...
Fluids, Buoyancy, and Archimedes' Principle
Archimedes is not just the owl from the Sword in the Stone. Although that's a sweet movie if you haven't seen it. He was also an old Greek dude who figured out a bunch of physics way before other people did. Some of this was discovered at bath time, so it has a lot to do with water, but don't get all weird about it, just listen to the old man in the tub. He's smarter than he looks.
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly...
Elastic and Inelastic Collisions
When you take a shot on a pool table or tackle someone in a football game, you're participating in a collision. But the two events we just mentioned are totally different kinds of collisions! But what are elastic collisions, and what are inelastic collisions? We have to learn the varieties and what they mean for momentum and energy.
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http...
Third Declension Nouns in Latin Part 4: Parisyllabic Exceptions
Let's wrap things up with the third declension nouns. We've covered imparisyllabic nouns, both regular and exceptions, as well as regular parisyllabic nouns. So let's cover some exceptions for the latter and we will be on our way!
Script by Patrizia Farina, Professor of Italian at Western Connecticut State University and Purchase College.
Watch the whole Latin playlist: http://bit.ly/ProfDaveLatin
Italian Tutorials: http://bit.ly/ProfDaveItalian
American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Philosophy Tutorials: http://bit.ly/ProfDavePhilo
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern...
Future Tense for Fourth Conjugation Verbs in Latin
We've covered the present and imperfect tenses for fourth conjugation verbs. Now let's hit the future tense! It won't be too tough, let's get started!
Script by Patrizia Farina, Professor of Italian at Western Connecticut State University and Purchase College.
Watch the whole Latin playlist: http://bit.ly/ProfDaveLatin
Italian Tutorials: http://bit.ly/ProfDaveItalian
American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Philosophy Tutorials: http://bit.ly/ProfDavePhilo
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry Tutorials: http://bit.ly...
Impulse and Momentum
As much as we frequently misuse scientific words in common language, we do have a reasonable grasp of the word momentum. But that's no reason to gloss over this concept, we have to know all the definitions and equations there are! The same goes for the concept of impulse. Check this one out, there are trampolines and baseball.
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http...
Jimmy Corsetti is Human Garbage
After exposing Graham Hancock, the godfather of the pseudoarcheology cult, I vowed to go after all of his loser acolytes one by one, starting with Dan Richards and Jimmy Corsetti. We covered Dan already, so now it's Jimmy's turn. This guy is a real gigantic turd, pushing lies and conspiracy theories about Göbekli Tepe, Atlantis, the pyramids at Giza, you name it. The blatant lies about archeological sites would be bad enough on their own, but he is also truly the worst troll in this cult by a mile, just a racist, misogynistic monster harassing scholars on a d...
Conservation of Energy: Free Fall, Springs, and Pendulums
The energy of a closed system is always conserved. This is an important law of physics! But energy does change forms. What are all the forms, how do they interchange, and how does this apply to things like free fall and pendulums? You gotta watch this clip to find out, buddy!
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http...
What are the Types of Numbers? Real vs. Imaginary, Rational vs. Irrational
We've mentioned in passing some different ways to classify numbers, like rational, irrational, real, imaginary, integers, fractions, and more. If this is confusing, then take a look at this handy-dandy guide to the taxonomy of numbers! It turns out we can use a hierarchical scheme just like we do for biological organisms or fundamental particles, and it's really useful for understanding the properties of different types of numbers.
Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry...
Logarithms Part 2: Base Ten Logs, Natural Logs, and the Change-Of-Base Property
We know about logs, so what are natural logs? Again, no, they're not made of wood. They are logs of base e! What is e? It's this crazy irrational number. Just watch this.
Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
EMAILâ–ş ProfessorDaveExplains@gmail.com
PATREONâ–ş http...
Ancient Mesoamerica: The Olmecs (1600 – 400 BCE)
So far in this series we've been looking at the Asian, African, and European continents. But what was happening over in the Americas? The first Mesoamerican civilization were the Olmecs, who occupied the coastal area of the Gulf of Mexico. What were these people all about? What was their culture like? Let's find out!
Script by Peter Wyetzner
Watch the whole World History playlist: http://bit.ly/ProfDaveWorldHistory
American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Italian Tutorials: http://bit.ly/ProfDaveItalian
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics...
Simple Harmonic Motion: Hooke's Law
Springs are neat! From slinkies to pinball, they bring us much joy, and now they will bring you even more joy, as they help you understand simple harmonic motion and Hooke's law. Who doesn't love a good oscillation now and again? Check it out.
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http...
Discussing Pseudoscience With Archeologist Flint Dibble
You may remember archeologist Flint Dibble from my great big pseudoarcheology debunk exposing Graham Hancock as a fraud. A lot of his followers also fall for other frauds I've debunked, like Avi Loeb, Bobby Kennedy, and more. Let's talk with Flint about the art of debunking, the status of public science literacy, and what can be done to put society on the right track.
https://www.youtube.com/@UC27vDmUZpQjuJFFkUz8ujtg
Please check out Flint's channel and subscribe, he does excellent work battling the pseudoarcheology frauds!
Watch my other debunks/debates/discussions: http://bit...
Kinetic Energy and Potential Energy
You can put energy into an object. Wanna know how? No, you don't need a Harry Potter wand. Just lift it up above your head! By doing so, you bestow the object with more potential energy. Learn more about the energy of motion and the energy of location in this clip.
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http...
Class Sarcopterygii: Lobe-Finned Fishes and Tetrapods
That took a while, but we finally finished our investigation of Actinopterygii, the ray-finned fish. Now let's look at the other major clade within Osteichthyes, the lobe-finned fish of Sarcopterygii. This is the clade that gave rise to the tetrapods, like amphibians, reptiles, and mammals. Let's start by looking at coelacanths and lungfish.
Script by Ryan Helcoski
Watch the whole Zoology playlist: http://bit.ly/ProfDaveZoo
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit...
Documenting the Crime Scene Part 2: Photography and Videography
We just looked at note taking and sketching as two ways of documenting the crime scene. Now let's look at two more, photography and videography. What is the correct protocol for taking photos of all the evidence at the crime scene? Let's find out!
Script by Kuldeep Kawar
Watch the whole Forensic Science playlist: http://bit.ly/ProfDaveForensic
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http...
Echinoderm Diversity Part 1: Class Crinoidea (Sea Lilies and Feather Stars)
With some general information regarding echinoderms covered, it's time to get a sense of the diversity within this clade. First let's look at class Crinoidea, which contains the sea lilies and feather stars. These are fascinating creatures, so let's learn about them!
Script by Ryan Helcoski
Watch the whole Zoology playlist: http://bit.ly/ProfDaveZoo
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys
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Work and Energy
What's work? Not that place you go to earn money. In physics it means something else. And what's energy? Not like in the groovy sense. Actually, energy is one of the most improperly used words in the English language. Let physics define these words for you!
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology...
Introduction to Particle Physics: A Tour of the Standard Model
After a deep dive into quantum mechanics, it's time to do the same for particle physics. What is the Standard Model of particle physics? What are all the particles in there, and how did we discover them? How can we use this model to do calculations? What is the future of the field? Let's learn all about it!
Script by Andrew Mattson, Physics PhD Student at Johns Hopkins University
Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Mathematics Tutorials: http://bit.ly/ProfDaveMaths<...
Frictional Forces: Static and Kinetic
Newton's first law tells us that an object in motion will remain in motion, but we don't really see that on earth, do we? If you throw a ball, or push a hockey puck, these things do eventually stop. Why? To answer this we must learn about static and kinetic friction!
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http...
My 2026 Bingo Card (Featuring Mr. Beat and J. J. McCullough)
2025 has come to a close! And what a shitshow it was. What does 2026 have in store for us? Mr. Beat, JJ McCullough and I have made some bingo cards with predictions. Some of us took it more seriously than others. Spoiler alert: I did not take it seriously. That's my bad. But between the three of us we have some great predictions that stirred some interesting conversation. Let's reflect on the year and share our hopes and fears for next year together!
Check out Matt's channel: https://www.youtube.com/@UCmYesELO6axBrCuSpf7S9DQ
Check out...
Mass vs. Weight and the Normal Force
Mass is just a fancy sciency word for weight, right? Wrong! Although related, they aren't the same thing. You'd better find out exactly what the difference is so that you don't look foolish around the water cooler! Oh and the normal force, let's find out what that is too.
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly...
Chromosome Structure and Organization
We've all seen pictures of chromosomes, and we know that they contain DNA. But how do we get from the double helix of DNA to the X-looking shape of a chromosome? Is it just DNA, or are there other things in there? How much DNA is in each chromosome? Chromosomal structure is incredibly complicated, but now that we've learned about DNA and proteins, as well as Mendelian genetics for a little context, we are finally ready to get a more sophisticated view of what's inside a chromosome.
Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio<...
Latin Vocabulary: Familia (Family Members)
It's time for more Latin vocabulary! Let's learn to name all the members of the family in Latin. Yes, even your mother-in-law.
Script by Patrizia Farina, Professor of Italian at Western Connecticut State University and Purchase College.
Watch the whole Latin playlist: http://bit.ly/ProfDaveLatin
Italian Tutorials: http://bit.ly/ProfDaveItalian
American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Philosophy Tutorials: http://bit.ly/ProfDavePhilo
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic...
Logarithms Part 1: Evaluation of Logs and Graphing Logarithmic Functions
What are logs? No not like the ones from trees, silly! We need to know about logarithms. They represent the inverse operation of exponentiation. How do they work? How do we evaluate them? How do we graph them? Let's go through the basics now.
Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http...
Newton's Third Law of Motion: Action and Reaction
Are you tired of Newton's laws of motion yet? Well, lucky you, this is the last one. And it's the most misunderstood as well! People love making inappropriate metaphors with scientific principles, unfortunately. Watch this to make sure you don't do the same!
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit...
Wacker Reaction and Related Chemistry
We learned how to make linear aldehydes through hydroformylation, but the smallest aldehyde that can be produced this way is propanal. What about acetaldehyde? That is produced through the Wacker reaction. Let's learn all about this process!
Watch the whole Inorganic/Organometallic Chemistry playlist: http://bit.ly/ProfDaveInorganic
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics...
Newton's Second Law of Motion: F = ma
One of the best things about Newton was the way that he showed how natural phenomena abide by rigid mathematical principles. So much so that we can use mathematical equations to calculate how objects will actually behave. This equation, F = ma, looks pretty tame, but it packs a punch!
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly...
Fingerprint Ridge Counting and Ridge Tracing
We know how to record fingerprints, but how do we analyze them? Two important techniques will be ridge counting and ridge tracing. How does that work? Let's find out!
Script by Kuldeep Kawar
Watch the whole Forensic Science playlist: http://bit.ly/ProfDaveForensic
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio
Pharmacology Tutorials: http...
Newton's First Law of Motion: Mass and Inertia
Did you know that if you throw a rock in space, whatever velocity it has at the moment that it leaves your hand, it will continue moving with that velocity indefinitely? That's Newton's first law. It applies to objects on earth as well, it's just that earth's atmosphere complicates matters. Get the full breakdown here!
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem<...
Bret Weinstein and Tucker Carlson Have a Playdate
Bret Weinstein and Tucker Carlson both suck a lot, clearly. So what happens when they get together? Does the suckiness compound exponentially? It does, in fact. From Tucker continuing to fumble 9th grade biology principles while Bret does absolutely nothing to set him straight, to vomiting up super racist toddler takes on the Middle East, let's point and laugh at these douchebags together, so we can feel like the world isn't going up in flames for an hour.
My video on Tucker Carlson: https://www.youtube.com/watch?v=S1FpUw4D8UM
Watch all of...
Linear Second-Order Differential Equations Part 1: Homogeneous Case
After a number of tutorials covering first-order differential equations, it's time to start tackling second-order differential equations. These contain a second derivative term, and they are quite useful in physics. To introduce these, let's first examine the simplest case, a linear homogenous second-order differential equation that exhibits constant coefficients. To solve these we will need to find a characteristic equation and do some algebra, a process which will vary depending on whether we are dealing with real distinct roots, complex roots, or a repeated root. Let's take a look!
Script by Lorcan Nicholls
Watch the...
Particle Decay Rates and Cross Sections
To substantiate the Standard Model of Particle Physics, we look for certain kinds of particle interactions and other events, including particle decay. Why do decay events produce the kinds of particles they produce, and why do particles decay at all? It's a complicated question, but let's talk about it!
Script by Andrew Mattson, Physics PhD Student at Johns Hopkins University
Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
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Dynamics: What are Forces?
What's a force? No, not THE force. That's from Star Wars. I'm talking about the forces in the universe that make things move. Yes, I know Yoda moved the X-Wing with The Force. Will you quit it? We are talking about the real universe here. Fine, I guess it could be the same universe as ours, but why are there humans that speak English in a galaxy far, far away? Alright fine, go watch a Star War first and then come back to me when you want to learn some real physics.
Watch the whole Classical Physics...
Class Amphibia Part 1: General Characteristics and Development
Continuing through phylum Chordata, we arrive at class Amphibia, the first of the tetrapods. How did they evolve, and what do they look like today? Most people know about frogs and salamanders, but what about caecilians and other strange creatures? Let's take a look!
Script by Ryan Helcoski
Watch the whole Zoology playlist: http://bit.ly/ProfDaveZoo
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
Anatomy & Physiology Tutorials: http://bit.ly...
Relative Motion and Inertial Reference Frames
Did you know that everything is moving? Even you, as you're sitting perfectly still, because the earth is moving, and the sun, and the galaxy, and so forth. For this reason, it only makes sense to talk about the motion of some object relative to some other object, just as Galileo told us. Watch this and see what I mean!
Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry...
Personal Pronouns in Latin
Back to grammar! Let's learn the personal pronouns in Latin. These are words like I, me, you, and so forth. These are always implied by the form of the verb being used, but they can still be used for emphasis.
Script by Patrizia Farina, Professor of Italian at Western Connecticut State University and Purchase College.
Watch the whole Latin playlist: http://bit.ly/ProfDaveLatin
Italian Tutorials: http://bit.ly/ProfDaveItalian
American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Philosophy Tutorials: http://bit.ly/ProfDavePhilo
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1<...
Evaluating and Graphing Exponential Functions
We know about functions where exponents are raised to different variables, to produce quadratics, cubics, quartics, and so forth. But what about when the variable itself is an exponent? This is called an exponential function, and they are important for modeling things like population growth and other real-world scenarios. Let's learn about them!
Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry...
