If I was a science teacher, I would feel compelled to show each of these videos for 10 minutes per class. They're amazing
@KhanPiesseONE10 жыл бұрын
they do in australia
@Fr0st1s10 жыл бұрын
Khan Piesse You guys are so lucky!
@KhanPiesseONE10 жыл бұрын
Fr0st1s Well, I thought that was normal, they put up Science, History, Math or English videos from the State Governments eLearn systems, or KZbin, go through it with us, then we do the normal school stuff like typing our assignments and notes and points and study guides on our laptops, that data helps us complete our course assignments for each semester, the data is imputed to the National OneSchool system which pretty much governs all public schools in Australia, It's quite high tech when I think about it now, easier than what America and other poor people countries do.
@Fr0st1s10 жыл бұрын
WOW! Australian school system looks so advanced. Now to think of it, I feel like I finished school in stone age, compared to you :) Even today education system in my country looks is poor.
@KhanPiesseONE10 жыл бұрын
Fr0st1s What country is that?
@BriWhoSaysNi10 жыл бұрын
Suddenly I'm actually glad I took AP Calc because when he started talking about the rock that started at escape velocity getting slower and slower but not stopping I was like "Oh, you mean a limit?" and it made the whole concept easier to get. So much for never using it. lol
@emmettdel10 жыл бұрын
You're an awesome teacher! I love how engaged you are, it makes me feel like I'm watching Bill Nye again
@moumenaabdalla83964 жыл бұрын
hahaha, he is my best astronmy teacher . kareem mostafa
@charleslarue79210 жыл бұрын
If I might make a recommendation, oh fellow astronomer, I would suggest more graphics for things like the shapes of orbits and whatnot.
@megashley196310 жыл бұрын
I agree. I understand everything he was talking about, but that is because I already knew this stuff. If I were unfamiliar with orbital mechanics the lack of visuals could be really confusing.
@gandalfthegrey217110 жыл бұрын
my thoughts exactly
@observant69536 жыл бұрын
I never understood this KZbin thing of a video in which you only see a person talking to you. Completely ignores everything that would be possible with video.
@IMVADER210 жыл бұрын
Astronomy class was one of the few I looked forward to in high school. Classroom in a planetarium every day, watching the stars spin by while listening to Stairway to Heaven...this isn't like my class, but it's kept me as interested as I have been in that room for my high school career. Really glad I found this series from the start, and I won't be stopping until you guys do, which hopefully is in a VERY long time :)
@sonalirai32646 жыл бұрын
6:17 that part was funny like “I hope you kissed your rock goodbye because it ain’t coming back” I like Phil he is funny
@Manish-nj6jo10 жыл бұрын
Your videos are highly educational. You and the rest of the crash course team make education fun and interesting to learn. Keep it up. Don't forget to be awesome crash course.
@Woodenfan10 жыл бұрын
This brings me flashbacks to physics. Gotta say, I got more out of this video than an entire lecture or two of physics on gravity.
@Woodenfan10 жыл бұрын
I'm in college dude xD
@Woodenfan10 жыл бұрын
I changed to IT.
@sayuas429310 жыл бұрын
This is all really basic, I was hoping for more advanced stuff.
@Woodenfan10 жыл бұрын
I bet he'll build upon this stuff later on :) Probably going to be a 30-40 episode series, so what I said seems plausible
@kadehernandez461910 жыл бұрын
Sayuas It is, but I'm sure we'll get into the good stuff later on. Actually explaining what gravity is is more astrophysics, which I'm sure he'll get into later on.
@annamattos86275 жыл бұрын
OMG, I love that Douglas Adams definition of flying. I have been laughing with it for years and now I know why it is also cientifically accurate. Thank you!!!
@headrockbeats10 жыл бұрын
Easily my favorite Crash Course series so far. KEEP IT UP!
@Lee_yourboylee10 жыл бұрын
Great job guys, this is proving to be another wonderful CC. They enrich my life immensely. Genuinely can't thank you enough.
@bertwimlore77406 жыл бұрын
For me, this is more informative on the topic of Astronomy than even the Cosmos series. Home. Freaking. Run. Phil, you da man.
@rosebud16696 жыл бұрын
I really wish he would do a series showing how to actually measure and calculate luminosity, distance between celestial objects, blue/red shift, etc. In simplification, it would be amazing if he had a series specifically dedicated to cosmology.
@pizzael10 жыл бұрын
I love his explanations for things! Just when I'm about to feel like I can't wrap my head around it, he says something that will simplify it :). Go Phil!
@darkmatter35389 жыл бұрын
4:29 I IMMEDIATELY Thought of Toy Story when he said that Woody: THAT WASN'T FLYING! THAT WAS FALLING WITH STYLE!!!
@feynstein10046 жыл бұрын
Me too :)
@xaniel66395 жыл бұрын
are you okay?
@jonroskilly398310 жыл бұрын
Best Crash Course Astronomy so far, really looking forward to the next ones!
@ScienceAsylum10 жыл бұрын
Hey! I uploaded a science video back in July with this same exact title! ...great minds think alike?
@feynstein10046 жыл бұрын
Whoa, dude. Fancy seeing you here. :)
@BillWestlakeCraft9 жыл бұрын
I have watched a lot of these crash course, and this is one of the best I have seen. You teach very clearly, and have a very engaging style. My hats off to you sir!
@stenbak8810 жыл бұрын
I'm starting to get into astronomy, thank you for that Phil, keep on keepin on
@chamelikasamarakoon6213 Жыл бұрын
you are the best teacher who teach astronomy science
@carterwilliamson850410 жыл бұрын
Looks like we're going to learn about gravitational lensing!!!! Fun
@TheAraz9510 жыл бұрын
This is awesome! I loved you badastronomer channel since day one!
@WrathOfMega10 жыл бұрын
So what you're saying is; the moon is literally just falling at the Earth and missing. Weeeeird.
@Cosmalano10 жыл бұрын
Yes. Not weird, truth.
@WrathOfMega10 жыл бұрын
electrocat1 the truth can be weird.
@jonathan022510 жыл бұрын
can you guys clarify how it maintains its orbit if gravity is bound to pull it in? What causes that orbiting suspension? sorry for this question, i really haven't got into science that much because of my chosen course.
@Cosmalano10 жыл бұрын
If you think about it in terms of general relativity, then there is just a line in space time that wraps around the Earth that the moon is following. But thinking from the way described here, the moon is falling towards the Earth. Imagine throwing a ball so far that it goes around the apparent "edge" of the Earth. You would see the ball come back around as it continued to try and fall, only to miss the Earth by the time it gets to a height where it would normally land. This perpetual falling is how the moon stays in orbit, just farther away.
@jonathan022510 жыл бұрын
So then, what's keeping the moon from falling? in terms of force that is.
@foregtablename9 жыл бұрын
just started watchin' this, had a lecture about gravity and black holes today and saw it is exactly a year since this video was posted. Thankyou, crashcourse, for making Astronomy videos :)
@sindrebrve789310 жыл бұрын
Can you start Crash Course: Geography Pleeeeeeeeeease I'll give you 50% of the views
@sindrebrve789310 жыл бұрын
+ i did not write first so you should do it
@RBuckminsterFuller10 жыл бұрын
kake pynt If you're 50% of the views that means they only got 2 viewers. That's not a very good incentive. Maybe they should make a crash course math/statistics instead.
@sindrebrve789310 жыл бұрын
Heard of refresh.........
@Cosmalano10 жыл бұрын
That would mean they would get two views.
@abeta20110 жыл бұрын
Haven't you ever hear of CGP Grey?
@TheDarkBrethren9 жыл бұрын
These episodes are amazing. Thank you so much for broadening my, and many other people's minds. Space is so fun and helps with perspective. Thank you :)
@raiseaglass160710 жыл бұрын
Crash Course Physics!
@edwardmcdonagh730910 жыл бұрын
might have to be more specific, after all, everything is physics!
@raiseaglass160710 жыл бұрын
Edward McDOnagh Yes, I am quite aware of that fact. However, Physics textbooks do exist. How else am I supposed to explain that?
@tenaciousdean617910 жыл бұрын
McKenzie Banner This is physics. You will have to be more specific.
@sajidmahmud79457 жыл бұрын
It is available now!
@aronious2915 жыл бұрын
why do they never discuss terminal velocity when gravity is discussed
@missmurrydesign71156 жыл бұрын
This man is brilliant...
@gabrielrangel95610 жыл бұрын
There should be a Crash Course Maths, or rather, Crash Course Calculus, Crash Course Linear Algebra, so on. Why is it that there's no Crash Course on Maths?
@edwardmcdonagh730910 жыл бұрын
i think crash course calculus would only be good for a few episode, i can't imagine a level and degree level maths making great youtube videos but id love a mathematics series
@gabrielrangel95610 жыл бұрын
I wouldn't expect them to delve in deep but single-variable calculus is reasonably simple. It may as well be Algebra or a particular topic of Algebra.
@danheidel10 жыл бұрын
Crash Course has a limited amount of resources to make videos. It's possible they'll get to math some point in the future. Khan Academy and plenty of other websites have lots of good math videos right now if you are interested in that.
@gabrielrangel95610 жыл бұрын
Dan Heidel I don't think it's more expensive than their usual videos. There's MIT Open Courses also, it's just a thought really.
@Emma-fn4rs10 жыл бұрын
That would be great! I'm not in calculus yet, so it would be great to get a head start!
@josephcallahan16642 жыл бұрын
Great job! I will be using this soon under the gravity of the requirements as an instructor.
@FewVidsJustComments Жыл бұрын
How do Star Wars characters always have seemingly normal gravity in spaceships?
@DanThePropMan10 жыл бұрын
Hey Phil, just wanted to say that I think you're killin' it with this host gig. Keep up the good work!
@Numbuh1NerdX10 жыл бұрын
Ironically enough, I'm supposed to be writing a book report on Hitchhiker's Guide to the Galaxy right now.
@raythegardener10 жыл бұрын
I love that the one source you quote within the video is Douglas Adams. I get most of my scientific understandings from his writings too.
@drink1510 жыл бұрын
This video should be included in KSP.
@raulgcf110 жыл бұрын
All I have to say is that you guys are f***ing awesome for posting all this incredible info in an easy to digest format for everyone!!! keep it up you guys rock.
@Linkous1210 жыл бұрын
You'll probably discuss this in the next video, but wouldn't it be better to say that gravity *is* the warping (curvature) of space, rather than it *does* warp or curve space?
@Zerepzerreitug10 жыл бұрын
baby steps Matt. baby steps. Remember that many out there still struggle remembering the names of the planets.
@alucardwhitehair10 жыл бұрын
Arturo Gutierrez That sickens me.
@tobywilson10 жыл бұрын
This was my one nitpick of the video. Gravity IS the warping of space-time, is doesn't cause it. A subtle difference that doesn't make the video any more confusing to people who are struggling, but makes it correct.
@julessmith210 жыл бұрын
Crash Course and Bad Astronomer mash up is the best idea ever, thanks so much for these videos.
@1994fishcake10 жыл бұрын
How about Crash Course Engineering (Mech,Electrical, Aero etc)?
@JacobShepley10 жыл бұрын
those are pretty horrendously open fields of study that cover applied science in general
@KASASpace10 жыл бұрын
Jacob Shepley Not per se... mechanical engineering is all about loads on structures. That and temperature. So a quick video describing how maximum loads are calculated would be nice.
@liamfris2569 жыл бұрын
Phyyyyyyyyyyyyyyssssssssssssssiiiiiiiiiiiics
@garethdean638210 жыл бұрын
Very attractive presentation here dealing with such weighty matters must have been a massive task.
@explosivebrickstudios26934 жыл бұрын
Did I seriously just watch a class?!!?? This was soo entertaining
@piemaster651210 жыл бұрын
Love this series
@beleafer228 жыл бұрын
THESE VIDEOS ARE FUCKIN AWESOME!!!!
@davidduffy98068 жыл бұрын
Wonderful! Again I have learnt something new and have had my memory refreshed!
@ruolbu10 жыл бұрын
soo much of your explanations about orbits could have used simple graphics imo. Seriously I don't think I could've followed without ksp.
@tobithedestructor912910 жыл бұрын
it's nice that you take your time to teach us all this. I guess that's partly why I like CrashCourse. Thank you so much Phil!
@sheepwshotguns10 жыл бұрын
here's a silly question. what is the escape velocity of the universe :)
@marlonivancarranzabarrient78710 жыл бұрын
where would you be escaping to?
@pegeman151010 жыл бұрын
As they always say in the science class, "no question is silly". The escape velocity of universe depends on which direction you want to escape and what gravitational force is in your way. If earth is the only object then your escape velocity is more than 11km/s and if there are more planets then you calculate the gravitational force according to the angle of the gravitational force minus the gravitational force of the planets ahead of you (which are pulling you in) according to their angle compared to your position.
@AllanDawnsun10 жыл бұрын
there's no length, breadth, height, or time, or anything outside the universe, so yea...and the universe is expanding at pretty darn fast rate..theories say that going to the edge of the universe doesn't really take you to the end, in fact, if you keep going, you'll reach where you've started. kinda like going around the earth..
@pegeman151010 жыл бұрын
True, but I'm talking about normal conduction, which is universe is not moving or expanding and all the mass in the universe does not change or move. Same calculation as when we calculated the force at which two or multiple protons place on one another. In physics class when we calculate two trains moving towards each other, we are not considering the air resistance, wind speed, and friction. It makes the calculation hard and also discourages people from understanding the basic concept.
@doubleru10 жыл бұрын
I don't think it's possible to calculate the escape velocity of the universe because we do not know its exact mass. We can estimate the mass of observable universe, but that's just the portion of space 13.8 light years in all directions from Earth, and there is probably more stuff beyond that.
@Akrafes10 жыл бұрын
I've yet to say this but i feel that i must by now. I love Crash Course and triple love Astronomy courses in it. Great job over all!
@ArchOfWinter10 жыл бұрын
I want the Enterprise to the left of the screen! Where did you guys get it?
@twelge1510 жыл бұрын
Enterprise from original series is better.
@bluetannery152710 жыл бұрын
It's a Lego set. Go check it out :)
@Dooality10 жыл бұрын
I love this series. This is probably the best video yet.
@marishkaaable8 жыл бұрын
Thank God there is CrashCourse
@prashantbisht750010 жыл бұрын
I wish i had teachers like you back in high school.Awesome videos,awesome explanation neat and well structured . Thank you.
@geraldshort1610 жыл бұрын
Can you start: Crash Course: Mathematics. This will get tons of views.
@Lucassymons9 жыл бұрын
Best quote ever, loved all of those books :) So long and thanks for all the fish.
@chichi-nm8kn8 жыл бұрын
Reading these comments makes me feel like I'm on the smart side of youtube. I've come along way from leeroy jenkins and the emo kid song.
@demonking864205 жыл бұрын
Emo kid song?
@kaleba520310 жыл бұрын
The starting music of this Crash Course is by far my favorite
@MK.519810 жыл бұрын
I knew all this thanks to KSP and Scott Manley.
@under_the_night_sky53806 жыл бұрын
Hen Barrison n
@joshnirohina318 Жыл бұрын
i just realized a lot of the books in his table are his original works!!
@emmacloud47399 жыл бұрын
BUT WHAT CAUSES GRAVITYYYYY
@ramana33497 жыл бұрын
Excellent series.. thank you
@corporallee448 жыл бұрын
Probably a silly question, but Planet Earth has more mass than the moon, so why does it not pull it into itself or does the Earths circular velocity throw it out? I can't think of another way to describe it.
@krebs56368 жыл бұрын
well, the moon was formed after the earth collided with an object of roughly the same format. Maybe the millions of small particles (which later formed the moon) were blown into space, and were constantly falling (on 4:20 phil explains that)
@tommyfinn89028 жыл бұрын
Arnold Robert Lee The Moon is orbiting the Earth. Just like the Earth is orbiting the sun. So the reason the moon doesn't crash into the Earth is the same reason the Earth does not crash into the sun.
@ramsescoss59248 жыл бұрын
Arnold Robert Lee The moon doesn't crash into earth because the gravity of earth and the gravity of the sun mame the moon stay in the middle
@feynstein10046 жыл бұрын
For anything to fall down to earth (assuming the earth is motionless), all of its momentum (motion) has to be toward the earth. Consider the example of the ball. If you drop a ball from a height, all of its motion is in the downward direction (toward the earth). But if you give it a sideways push, it will still fall down but will land in a different spot because its motion is now in two directions: one is vertically downward toward the earth, the other is sideways, away from the earth. It just so happens that in this case, the downward motion is more powerful than the sideways motion. Hence the downward motion eventually wins and the ball hits the earth. However, if you give it enough sideways motion, the two motions will balance each other and the ball will get stuck. Its downward motion tries to bring it toward the earth but its sideways motion tries to take it away from the earth. And since the two are equal, the ball ends up doing neither. In other words, its distance from the earth doesn't change, which happens to be the definition of a circular orbit. I hope this helps. Btw things are a bit more complicated in reality because there are many more forces involved but this is essentially what happens. Hope this helps.
@mathematicianjeff83586 жыл бұрын
Free falling in space. That is a great explanation. I liked this video a lot!
@SOLACEISHERE8 жыл бұрын
What would happen if objects gravity didn't extend out into the universe forever like they do now? Would anything change would we notice?
@Sam-oz8pn8 жыл бұрын
Depends on how the gravity dissipates.
@kristygillespie50396 жыл бұрын
If all of the universe had gravity we would crash into other planets duh
@kcsrec85 жыл бұрын
I love this Crash Course series. So informative...
@seanyworny1048 жыл бұрын
I don't want that rock to escape:(
@fenmilosoft8 жыл бұрын
How dare you tell that rock what to do! Rocks have rights now! how don't you know this! have you been living under a ROCK! I'm so sorry.
@eugeneharold50054 жыл бұрын
lol
@vanhovemare6 жыл бұрын
just starting to view this. May I say that this is awesome? Thanks!
@GrubbJunker10 жыл бұрын
Phil, you should have dressed as a princess yourself =( Nice video though ;D
@davidcarmer447610 жыл бұрын
Phil, you always make this stuff so interesting. Great stuff.
@MaryJane-bo6lj7 жыл бұрын
SPOILER ALERT Gravity isn't a force. It's all about curves ;) EDIT: Sorry guys, a lot of what you deliver is great and of a high quality standard, but this was just poor. I'm sure this video was aimed for a particular audience but you could at least mention that the best theory of gravity we have (Einsteins Relativity no less) demonstrates that Gravity isn't a force and that its really about the curving of what can be thought of as a 4D mathematical space and then reassure viewers to just think of it as a force for the sake of this video (you know, to keep things simple). When you mentioned that gravity warps the space around it, close, but that would be that mass warps spacetime (relativity again). For those interested to know, gravity is NOT a force and really everything just moves in straight line vectors within the curvature of spacetime - spacetime being curved by MASS. Gravity doesn't bend light, mass bends spacetime and photons still travel in straight lines within a curved space (not light travelling in curves in a flat space). Also, please excuse my avatar, I am a liberal and believe in peoples right to choose. Although I don't partake as much as I once did, it was blazing that got me fascinated and literally opened my mind to theoretical physics... dude.
@Nyt2509 жыл бұрын
Finally a proper explanation in the difference between mass and weight, THANK YOU
@Cosmalano10 жыл бұрын
The escape velocity of what is 11 km/s? You're saying that a marshmallow and a sport stadium would need to reach the same velocity to escape Earth's gravity? I guess it has to do with the acceleration due to gravity. Never thought that the escape velocity would be the same for all masses ("escape acceleration" would be different though I do believe).
@edwardmcdonagh730910 жыл бұрын
yeah, but the force to be exerted on the stadium would have to be a lots greater than the marshmallow
@199NickYT10 жыл бұрын
Yes! But see, as he described with regards to mass, it would take a LOT more energy to get a stadium collectively up to 11 km/s than a marshmallow up to 11 km/s. Think about it this way: Voltron rockets off of Earth to its escape velocity of 11 km/s. Then, Voltron stops accelerating. At this state, the Cats-Bot is shooting away from the Earth without needing to speed up any more. Then, Voltron separates. What speed is each of the five wildcats traveling at? That's right, they're each still traveling at 11 km/s away from Earth! The speed of an object is not the same as the energy put into it. The speed is related to the energy put into an object, as well as the mass of it. P.S. BY THE WAY, Earth has an atmosphere. Even though you can build a marshmallow shooter that can pop out marshmallows at 11km/s, the marshmallow slows down due to air resistance far before it can escape the atmosphere. And shooting the marshmallow away from the Earth at a higher speed so that it would slow down to 11km/s when it reaches the edge of the atmosphere...would vaporize the marshmallow before it even got there. :(
@seigeengine10 жыл бұрын
This is for the same reason that if you drop two things of different masses they fall at the same rate.
@Cosmalano10 жыл бұрын
They are following tandex lines?
@Cosmalano10 жыл бұрын
Nick V the acceleration a mass would need to experience so that it had enough energy to escape Earth.
@afafalwan15158 жыл бұрын
everything i learned about science at school this year in one video ! wow
@docopoper10 жыл бұрын
A Zillion light years away is older than the universe, so the earth's gravity wouldn't have reached there yet. :P
@iluvDNA10010 жыл бұрын
You're right, the "Speed of Gravity" must = c. It's almost proven, all we have to do is find the Graviton...
@docopoper10 жыл бұрын
Joe Seph Well if that wasn't the case then you could use gravity to send information faster than light.
@acemcbeanpiff10 жыл бұрын
docopoper Well, probably? But why would we need FTL communications before some kind of FTL or Near-FTL form of propulsion? I guess it would fix the problem of Time Delay for a while, but it isn't that.. well, useful
@MrQwerty252410 жыл бұрын
A zillion light years is an distance, not a period of time. You are confusing it with looking back in time when observing a star that is a certain amount of light years away.
@ghuegel10 жыл бұрын
How many zeroes are in a zillion?
@johanneszwilling10 жыл бұрын
Best Video yet in this course
@mujii_228 жыл бұрын
wait we live on a planet, i thought it was the earth?
@theutopianoutopioan4646 жыл бұрын
Gunflower, Earth is a planet! So are Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune, as well as thousands of similar bodies orbiting other stars
@PickyMcCritical6 жыл бұрын
+The Utopiano Utopioan I think it was a joke. Hard to tell online tho :)
@kudos42016 жыл бұрын
We live in a society
@Mohamed-jv6nv5 жыл бұрын
No!!! We live on land. God why are these people so stupid?
@dreyfusslugado10 жыл бұрын
yay! you used one of my favorite Douglas Adams quote for describing orbits!
@harshitsinghai13958 жыл бұрын
I hope you kiss him goodbye first because it ain't coming back
@sangeethkumarkotagiri29258 жыл бұрын
thanks!nice video it has cleared my all doubts
@unvergebeneid10 жыл бұрын
Wow, I didn't find anything to nitpick this time. Everything was really carefully phrased. Actually, it almost sounded a bit forced ... hey, that was a joke! It was a joke, ok?
@Cosmalano10 жыл бұрын
I didn't think it was that great.
@unvergebeneid10 жыл бұрын
electrocat1 I'm not keeping _you_ from nitpicking if you found loads of stuff.
@LughSummerson10 жыл бұрын
Maybe a bit forced, but he's dynamic and attractive.
@MidwestHippies10 жыл бұрын
Next on CC Astronomy ...Meteor showers!!! Yeah? Can we get that maybe? Next after Tides that is. That should be a good episode :) This series is awesome, I love it!
@MrCaptainPatters8 жыл бұрын
FUCK, I JUST REALISED SPACE IS CALLED SPACE BECAUSE ITS EMPTY SPACE WHY DIDN'T THEY TEACH THAT SHIT IN SCHOOL ARRRRRRRRRGH FUCK MY LIFE UGGGGGGGGGGGGGGGGH
@afafalwan15158 жыл бұрын
Same XD
@jackcondas2027 жыл бұрын
Space isn't empty at all... Like at not even close to being empty, lmao
@yacinetharrafi72812 жыл бұрын
This video really helped me. Thank you very much!
@fringeofdestiny12478 жыл бұрын
GRAVITY, DONT MEAN TOO MUCH TO ME
@sophiaz9078 жыл бұрын
OMG YESSS
@FunkyHonkyCDXX10 жыл бұрын
Best episode yet. Way to take a potentially complicated subject and make it very understandable.
@coolaid41327 жыл бұрын
"What goes up, must come down" *NOBEL PRIZE AWARD*
@blighboy110 жыл бұрын
I just want to say I love these CCA videos. I'm usually unfairly cautious towards non-Hank/John presenters, but Phil is great.
@kwickiesparticuss99645 жыл бұрын
Wow this was mind boggling. I've watched this 5 times back to back.
@terraflops10 жыл бұрын
i enjoyed this video and the graphics really helped me. more graphics the better. i understand the gravity weakness inverse ratio better than before due to the graphic. Thanks.
@BeanSprouts027 жыл бұрын
Wooow. This is actually great. I remember last year where we talked about the difference between mass and weight in class. One of my classmates said that mass is weight not influenced by gravity while weight is mass influenced by gravity, and my teacher agreed. Wew. Don't know how that happened. Good thing I watched this vid. Thanks
@sumanapain68944 жыл бұрын
I really love your classes sir... God bless you...
@vrstovsek10 жыл бұрын
This was a great episode!
@Mastro_10 жыл бұрын
Make videos forever pls. Love these
@phatamgiang81487 жыл бұрын
Thank you for a great explanation. It helps me understand more about gravity. I wish you make a video about vectors in one dimension and then two dimension. Once again, thank you for a great lesson.
@Brandon_The_Honored_One10 жыл бұрын
I love these videos!!! Knowledge is power!!
@wanderlustlovelace10 жыл бұрын
Wow, this is the third time someone has explained this to me in less than 12 hours! First my physics teacher, then Randall Munroe in What if, which I was reading during my lunch break and now Phil... I'm sure not going to forget this any time soon : )
@DM-pz5ip9 жыл бұрын
excellent job! More more more!!
@OdysseyWorks10 жыл бұрын
Wow love these series! You rock hard!
@jim409 Жыл бұрын
Superb class
@richiereynaga509110 жыл бұрын
What a great weight loss strategy!
@nikkievanson22792 жыл бұрын
I'm the owner of the profiles son and we home school. These videos are the best! I love these.Every time my mom says to watch a video on something I ask for a crash course vid! Bye!!