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Professor Dave Explains
United States
Registrace 31. 12. 2014
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 want to know more about the world and how things work. My goal is to increase science literacy in our society, so please share these tutorials with anyone that you think might enjoy them. Happy learning!
Support my channel: www.patreon.com/professordaveexplains
Check out my book "Is This Wi-Fi Organic?": amzn.to/2HtNpVH
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 want to know more about the world and how things work. My goal is to increase science literacy in our society, so please share these tutorials with anyone that you think might enjoy them. Happy learning!
Support my channel: www.patreon.com/professordaveexplains
Check out my book "Is This Wi-Fi Organic?": amzn.to/2HtNpVH
Phylum Nematomorpha: Parasitic Horsehair Worms
Very similar to Nematoda is phylum Nematomorpha, or the horsehair worms. This is an entirely parasitic phylum. What is their morphology and life cycle? What is pseudoparasitism? Let's take a look!
Script by Ryan Helcoski
Watch the whole Zoology playlist: bit.ly/ProfDaveZoo
General Chemistry Tutorials: bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: bit.ly/ProfDaveBiochem
Biology Tutorials: bit.ly/ProfDaveBio
Anatomy & Physiology Tutorials: bit.ly/ProfDaveAnatPhys
Microbiology Tutorials: bit.ly/ProfDaveMicrobio
Botany Tutorials: bit.ly/ProfDaveBotany
EMAIL► ProfessorDaveExplains@gmail.com
PATREON► patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: amzn.to/2HtNpVH
Bookshop: bit.ly/39cKADM
Barnes and Noble: bit.ly/3pUjmrn
Book Depository: bit.ly/3aOVDlT
Script by Ryan Helcoski
Watch the whole Zoology playlist: bit.ly/ProfDaveZoo
General Chemistry Tutorials: bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: bit.ly/ProfDaveBiochem
Biology Tutorials: bit.ly/ProfDaveBio
Anatomy & Physiology Tutorials: bit.ly/ProfDaveAnatPhys
Microbiology Tutorials: bit.ly/ProfDaveMicrobio
Botany Tutorials: bit.ly/ProfDaveBotany
EMAIL► ProfessorDaveExplains@gmail.com
PATREON► patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: amzn.to/2HtNpVH
Bookshop: bit.ly/39cKADM
Barnes and Noble: bit.ly/3pUjmrn
Book Depository: bit.ly/3aOVDlT
zhlédnutí: 2 290
Video
Introduction to Verbs in Latin
zhlédnutí 7KPřed 19 hodinami
Let's continue working our way through the parts of speech in Latin. With nouns covered, let's talk about verbs. The inflection for verbs, or conjugation, is very complicated, and dreaded by most students. But don't worry, we aren't going to go too crazy yet, let's just talk about the very basics: person, number, tense, mood, voice, and transitive/intransitive. Let's define these concepts now s...
Eric Dubay Sucks at Life (200 Flat Earth “Proofs” Debunked)
zhlédnutí 317KPřed dnem
It's been quite some time since I checked in with flat earthers, those pathetic grifters peddling the dumbest hoax in the history of the human species. But I felt compelled to revisit the subject in order to debunk the fraud who is still regarded as some kind of flat earth messiah, Eric Dubay. His ridiculous pamphlet commonly referred to as "200 Flat Earth Proofs" was just a rehashed version of...
Antiarrhythmic Drugs Part 2: Pharmacological Solutions
zhlédnutí 3,6KPřed dnem
Now that we know the basics regarding normal cardiac function, let's look at some things that can go wrong, and relevant pharmacological solutions. Arrhythmias refer to a deviation from normal heart rhythm. This includes atrial fibrillation, and many other phenomena. There are four classes of drugs that deal with such issues according to the Vaughan-Williams classification, let's learn about th...
The Miocene Apes
zhlédnutí 11KPřed dnem
Moving along from the anthropoids, we arrive at the Miocene apes. This is where our lineage branches off from monkeys. Important species from these time include Kamoyapithecus, Proconsul, and Ekembo. Where did these organisms live and what was their behavior? Let's take a look! Script by Erika of Gutsick Gibbon: czcams.com/users/GutsickGibbon Watch the whole Anthropology playlist: bit.ly/ProfDa...
Continental Philosophy Part 1: Husserl, Bergson, Heidegger, and Jaspers
zhlédnutí 3,8KPřed dnem
With modern philosophy covered, let's cross over into contemporary philosophy. And let's begin by introducing the continental tradition in this time period. This included philosophers like Husserl, Bergson, Heidegger, and Jaspers. Let's see what they were all about! Script by Luca Igansi Watch the whole Philosophy/Logic playlist: bit.ly/ProfDavePhilo Psychology Tutorials: bit.ly/ProfDavePsych M...
Phylum Nematoda Part 2: The Parasitic Nematodes
zhlédnutí 6KPřed 14 dny
Now that we have some information regarding nematodes, or roundworms, it's time to get a closer look at the parasitic variety. Some parasitize plants, some parasitize insects, and some parasitize humans, causing diseases in certain parts of the world. This one will get slightly graphic, so it might not be for the squeamish, but it's fascinating stuff, so take a look if you're up for it! Script ...
Word Order in Latin (Syntax)
zhlédnutí 8KPřed 14 dny
With some understanding of phonetics and the parts of speech, we are ready to start looking at simple Latin sentences. But this requires discussing the concept of syntax, or word order. Does Latin have rigorous syntax like in English? It does not! Because of the inflection of words, the role of each word in a sentence is known from its form, and the word order is totally irrelevant. Let's see h...
The Anthropoids
zhlédnutí 8KPřed 14 dny
Moving along with the history of primates, as we approach the Eocene-Oligocene boundary, we find the anthropoids, sometimes called simiiformes. This group encompasses the lineage of both new and old world monkeys, or platyrrhines and catarrhines. These first evolved in the Fayum of Egypt around 37 million years ago, and there are a few subcategories we are going to look at. Let's get started! S...
Logic in Late Modern Philosophy
zhlédnutí 9KPřed 21 dnem
How did logic continue to develop as the modern period in philosophy progressed? Mill and Comte discussed the inverse deductive method. But then a huge figure arose, George Boole. He innovated new logical symbology that got us closer to reducing logic to pure mathematics. Then Peirce developed abductive or retroductive logic. Let's get a closer look at these figures now! Script by Luca Igansi W...
Introduction to Adaptive Immunity
zhlédnutí 6KPřed 21 dnem
After a rigorous examination of all the components of the innate system, it's finally time to pivot over to the adaptive immune system. If you thought innate immunity was impressive, get ready to be amazed! Adaptive immunity is one of the most incredible phenomena in physiology. Let's learn all about T cells and B cells, antibodies, and more! Script by Niyati Vachharajani Select images provided...
Reacting to Muslim Creationists (Subboor Ahmad and Muslim Lantern Debunked)
zhlédnutí 169KPřed 21 dnem
I've debunked so many Christian creationists, but what about Muslim creationists? What do they have to say, and is it any different? People seemed to enjoy my previous reaction video, so let's try another to tackle this important question! Beware, the sheer amount of facepalming in this video may give you second-hand brain damage. Check out TeachTap: teachtap.onelink.me/AGu6/ProfessorDave Watch...
Phylum Nematoda Part 1: Introduction to the Roundworms
zhlédnutí 13KPřed 28 dny
Continuing through Ecdysozoa, we get to Nematoda, which contains several hundred thousand profoundly abundant species of roundworms. Where do nematodes live and what are their characteristics? Which ones are free-living and which are parasitic? What is the significance of C. elegans? Let's find out! Script by Ryan Helcoski Watch the whole Zoology playlist: bit.ly/ProfDaveZoo General Chemistry T...
The Latin Noun System
zhlédnutí 4,2KPřed měsícem
After going over the parts of speech, it's time to get a closer look at each one, one at a time. Let's start with nouns. How does Latin handle nouns? How do nouns inflect, or decline? What's all this about gender for nouns? Masculine, feminine, and neuter? What does that mean? Let's dig in! Script by Patrizia Farina, Professor of Italian at Western Connecticut State University and Purchase Coll...
Antiarrythmic Drugs Part 1: The Physiology of Heart Rhythm
zhlédnutí 6KPřed měsícem
With some understanding of drugs that manipulate cardiovascular function, let's start to look at heart rhythm. Many drugs are focused on this, but before we dive into those, how does the heartbeat work? How does the body ensure a rhythmic heartbeat so as to supply the body with oxygenated blood? Let's get some basic information! Script by Michael Keith Watch the whole Pharmacology playlist: bit...
Exposing Discovery Institute Part 9: Douglas Axe
zhlédnutí 74KPřed měsícem
Exposing Discovery Institute Part 9: Douglas Axe
James Tour Gets EXPOSED by His Own Colleagues
zhlédnutí 145KPřed měsícem
James Tour Gets EXPOSED by His Own Colleagues
Late Modern Philosophy Part 2: The Roots of Analytic Philosophy
zhlédnutí 5KPřed měsícem
Late Modern Philosophy Part 2: The Roots of Analytic Philosophy
Phylum Kinorhyncha: Microscopic Mud Dragons
zhlédnutí 6KPřed měsícem
Phylum Kinorhyncha: Microscopic Mud Dragons
Stadler and Tour: The Newest Hit Comedy Duo!
zhlédnutí 146KPřed 2 měsíci
Stadler and Tour: The Newest Hit Comedy Duo!
Human Osteology (Axial and Appendicular Skeleton)
zhlédnutí 11KPřed 2 měsíci
Human Osteology (Axial and Appendicular Skeleton)
Late Modern Philosophy Part 1: The Roots of Continental Philosophy
zhlédnutí 7KPřed 2 měsíci
Late Modern Philosophy Part 1: The Roots of Continental Philosophy
Idiot Flat Earther talks about Prof Dave's "Straw man" arguments but then says that you can't explain a sun orbiting a spec earth. No, because it doesn't and no one with a brain argues that it does.
how did you get 4.5s on the first problem, sir?
If the earth was flat, the peak of Mt. Everest would be visible from everywhere on a clear day. Forget Everest! If you're in Ohio, the Rockies should be visible. Are they?
Don't forget Alfred Russel Wallace who also developed evolutionary theory simultaneously with Darwin. They actually spoke about it.
It's like watching someone with a PHd argue with a 10-year-old.
Some people just have a never-ending need to argue
Careful Dave. If you are not precise, they will use it against you. Water will not be arranged equidistantly to the center of the earth. There are significant density variations in the crust and mantle, so the curvature of spacetime isn't the same everywhere. There are actual depressions in the ocean surface and "hills" depending on the undulations of gravity. Earth isn't an exact sphere anyway. But pretty close 😉 I don't understand how you can deal with the disciples of this religion, I wouldn’t have the patience. But then again, I am a Geophysicist 😆 Thanks for your effort and all the best.
Are there shorter people and taller people? Yes? How do tall people’s blood vessels and bones fit? Same answer for the giraffe.
Science has be come dogma if you can't see that you're the ignorant one if you're too stupid to admit people misrepresent science the scientific method the big bang Ha ha ha .... if you can't admit ignorant people diefy science well then there is nothing I can say to sway your ignorance. Tell me something what would it take yo convince you hmmm.
Actually the entire point of this video that you're too afraid to watch is to explain to science illiterate dumb fucks like you precisely how it has never been and never will be dogma, but of course you're a worthless sack of shit who is allergic to learning and will never press play to see how that's the case. Eh fuckstick? DUHH NOTHING CAN SAY TO SWAY YOU DUHHH. Holy fuck you are beyond worthless.
If god is real it’s probably embarrassed by this guy way of defending the god
Why don't you try actually using some science to prove it?
I did that 100 times. Flat earthers just shit their pants and go "nuh uh". So I'm dumbing it down even more. All good, champ?
So what clade is Grima Wormtongue from then? : )
comedy gold!
i was waiting for this phylum!!! thanks!
17:17 I was researching the origins of sponges just out of curiosity and found this paper claiming to disprove all of the precambrian sponge fossils. I noticed some of the reasons they gave were not substantial, and I looked at the author and found Gunter Bechly on Meyer's evolution news website, which you have debunked later in this series. This just goes to show how much Stephen Meyer and Bechly will do to get rid of evidence that contradicts them. As far as I can tell, they made little to no mention of the sterane ratio.
Thanks. Nice to have so many refutations in one place.
*Summary of Eric Dubay* - Claim: we see too far - Answer: he lied about the distance/elevation and the math
Also, where is Eric Dubay in this chat, wouldn't he want to defend himself with science? 🤣🤣 28:03 Your family is from the Leaning Tower of Pisa? 😂 Also also, I have a strange sudden craving for Pizza Funny thing about not feeling when you're in constant motion, or even really slow acceleration. I remember when I was young I would often ride trains. Sometimes you'd be parked beside another train and you'd watch it start to move away before realizing, oh wait! It's us who are moving. We really do need reference points sometimes What's his problem with Free Masons? They all believe in a supreme being and have given much to charities as far as I can tell
1:12:56 as a GeoGuessr player we sometimes use satellite dishes to get latitude lmao 😂
Getting to 30 minutes in and i think i am going to hear "We see too far!" in my dreams lmao
You can hold a mantis under water and 9 times out of 10 youll get a couple these bad boys to free themselves from it
40:25 i like how they say "atmosphere" while talking about how the sun doesn't shine over the whole "earth" on their model, completely forgetting what "sphere" means
Saying "that's just a lie" over and over isn't really debunking anything. Also, what's with all the insults?
Well it is, since I'm proving that he's lying. What's with you being so fucking stupid that you can't understand that?
Oh wow, another short bus rider that didn't pay attention. Did you forget your retard helmet today?
@@ProfessorDaveExplains Nothing you are saying is "proving" anything. I get that you are trying to get thru the points quickly, but you cannot debunk anything with such quick-fire statements. You are coming at everything with the presupposition that the Earth is a globe, but anyone without that presupposition (flat-earth or otherwise) is not going to be swayed by any of the points you are making. You are just preaching to your own choir.
@@damvid21 Again, I am objectively proving him wrong by comparing his fallacious claims to actual facts. You didn't even watch this you fucking twat. I'll prove it. Which of his "proofs" did I not adequately debunk? Time stamp. Explanation. Be specific. When you reply continuing to do nothing but whine like a little bitch and not answer my question, you will be proving that you're an intellectually bankrupt sack of shit who did not watch this video. Let's go, fuckstick! Make me laugh!
Hi Professor Dave. I like you a lot. Just want you to know, Jesus loves you.
Does that mean I can never throw a ball backwards unless I can throw it faster than the Earth rotates? Obviously from my perspective and also the Earth's, it's going backwards. But in local space, it never went backwards, just a bit slower forward than everything else?
I loved the part where Flat Earth Dave is trying to explain how the Sun should act on the sides of the Earth as it spins through the 24 hour cycle or in relation to the 23 degree tilt. Yes Dave, it actually gets cooler and warmer during sunrises and sunsets, hotter in the day and cooler at night. Everyday. That is exactly how a spinning globe would work, also just like the 23 degree angle of earth changes the seasons. Flat Earth? Not so much. It has nothing to do with how far away the sun is or how close. It's about the depth of atmosphere that filters the sunlight or lets it through. Directly overhead is the shortest distance through atmosphere. Diagonally, substantially more filtering. Sun radiation, heat, UV, is easily filtered. Seasons?? No Dave, it's exactly the same as above. It's not the actual distance from the sun that increases or decreases the temperature you feel in levels of sunlight radiation or summer vs. winter they are the same. It's the depth of atmosphere that sunlight transits through to arrive at your location on the globe. Direct line or diagonally. That's why it's warmer at the equator, colder at the poles. More direct light for more months per year vs. more filtration by atmosphere for most of the year. Thin at Equator, diagonally much thicker at Poles. Warmer, suntan season where sunlight is less filtered. Cooler, no tan season when the light is shining diagonally through the atmosphere, much more filtered much cooler. It's exactly the same at trying to suntan during a setting or rising sun. You can't. It’s also called the UV index. Don’t believe me? Tan during a heavily clouded day? Probably not, UV radiation is Atmosphere filtered.
And so, if we ignore the portion of flat earthers who willfully lie, any adult who truly believes the Earth is flat is quite simply... what's the word? Oh... stupid. Stupid stupid stupid. I'm not intending to denigrate anyone... just state an obvious fact. Peace.
Water is not itself wet 4:00
5:00 you can use facts to create fiction...see DailyWire.
7:51 wow, he says no one has brought him evidence... Has he looked into it?
8:20 This guy just flipped the burden of proof for the god claim.
18:44 You're addressing the predatory incorrectly. You could say that because of this to make the species more survivable because of those mutations. Organisms that had no benefit for their mutations died the same way the other ones did. 23:12 there you got it.
25:18 You missed it You missed it. What he's saying is that just because the the giraffe had to keep stretching its neck that's how it ended up with such a long neck not seeing that the ones that had the mutation of the longer neck ended up eating higher in the trees and living longer and reproducing.
Dave, these guys are such morons I love this entire video and how you debunk every single one of their claims. Please keep it up and dont shy away from dealing with muslim apologists. We need you to highlight the absurdity of this religion's adherents. Just asking in case you see this, please remember not to resort to mocking their accent. This will only allow folks to excuse your debunk as being racist. We need your voice of reason.
If I was guessing about what the crazy guy is yapping about the single tooth I'd say that it's some museum creation of some species that's only identified from some fragmentary dentition like A. bahrelghazali. I've been out of the game for a decade so they may have described more by now or it might not even be a separate species anymore. Things happen. But that he can't understand the importance of dentition in discerning hominins is just another indicator of his complete lack of understanding. There are 3 main areas that are important: locomotion, dentition and brain. I'm betting dude thinks the brain came first.
Jesus Christ, does he not realize that the moon is ALSO orbiting the sun in the exact same orbit as the planet. It has little to do with the relative gravitation. Planet- moon system orbit sun while also spiraling around their common center of gravity
Oh look I got another one to delete their comment just by demonstration. They don't have balls in their retarded. Congratulations buddy! Your number six this week
My grandmother believed horsehair turned into snakes when placed into water, she claimed to have seen it happen when she was a child. Nice to have an answer to what she insisted was true
I've laughed for 1:01:53
😮
Eric is a parasite who makes money from malcontented, ignorant, contrary people. I doubt he really believes this stuff, it just makes him money so he doesn't have to work.
This is pointless. Science has pinned down a lot newer stuff than this. These guys should be debunking string theory, which should be easy since its wrong. If they want something actually relevant they could argue with flat universe which is actually controversial at the moment.
"I don't even know what he thinks he's talking about" LOL I love that so much. This zoomer is so ignorant and can barely speak intelligibly. Who allowed him near a computer? He talks like a complete rtard "my boy" lol However why the astrophysicist's opinion is worth more than the layperson is because the astrophysicist is far smarter and and has far more understanding of all the basic sciences than the layperson. You're forgetting exactly how stupid the average person is.
No one debunks flat earth as succinctly and hilariously as Professor Dave 👏
Kent is utterly clueles id...t, its terrible
Very entertaining video. I shows the creativity of them and finding ways to describe things that ain't real.
Hey, it‘ not only simpletons that watch ancient aliens when high, also quite intelligent people watch it when high to have a good laugh. ☝️
I'm so glad I live in a country where this sort of religious nonsense isn't a political topic.
One of the things I like about you Dave is that, you educate people well, I enjoy watching your educational work, i often watch to learn better ways to communicate in educating younger people, as an adult i often find it difficult to keep it simple, i personally am happy that you have adverts, rather than being like those scam artists out there like the flat earthers, for me personally advertising and sponsorships are so much better. Many Flat earthers and conspiracy theorists are basically there to scam people, I detest them too, I get tired of seeing their absolute bullshit trolling all over social media.
"The moon is self luminecent" Proceeds to talk about eclipses
Love your debunking and proving these people are morons. I have one issue with one of your many, many points. The universe could be infinite, but we don't know. We are trying to find this out with the JWT. The point is we don't know. All we know is the observable universe.The Universe being Infinite is still up for discussion, but is the universe static? Naa, that is bullcrap.
Man I love these videos for a couple of reasons, one it’s fun to make fun of flat earthers, and two I end up learning a bunch of interesting basic things that I should have paid more attention to in school 😂
CZcams, "Advertising money trumps truth."
the problem is that these people are not looking to be happy. they spend all of their free time, by choice, by conscious, free choice. to live in an interpretation of the world that does nothing but make you miserable. to a flat earther, they're living in a dystopia, but its a delusion, that they choose. it does nothing to them, except make them miserable.
This channel is one of the most arrogant and self-entitled on CZcams. It would be great if you could make your points without talking down to people. You may feel like they're idiots, but you shouldn't make that obvious.
They chose to ignore facts and should be treated accordingly.
Tone police elsewhere, asshole.
Oh did you forget your sensitive helmet. Don't worry sweetie. We all know you're a bussy
we are not tlaking down to people. we are talking down to willfully ignorant asshats who think they know better than all of science. maybe you should assess their tone, instead of dave's
@@shreyvaradnotice me senpai!!