We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: apple.co/3d4eyZo Download it here for Android Devices: bit.ly/3TW06aP
Wow I'm amazed I got all of this. I'm so far removed from my academic days. Thats a credit to the writing, interesting and informative graphics, and most of all the skill and engagingness of the presenter. Well done!
I watched this for the first time a little too drunk to really understand, but I'd like to explain what I learned from this: Nature is really, really smart. Well done natural selection.
Great work! I like your pace it is exactly the type of fast action crash review to get rapid conceptual understanding. I'm reviewing 10 per day. I took 1st year physics 20 years ago and I'm not interested in the details, but the conceptual underpinnings. I hope you go right into more advanced topics.
Sheah right like someone can hold a College Physics Book with just one hand in a angle where they could have a page open to read to find out near point
My near points for both of my eyes seem to be at about 12 cm. But I'm not nearsighted, at least not in my dominant eye. And even my weaker eye seems to be less nearsighted than the eyes of most people who wear glasses. I feel special. Maybe that's why I'm so good at finding four-leaf clovers.
5:21 the image used is misleading. Assuming that the lens materials are the same the objective lens should be thinner and have a longer focal length than the eyepiece. The instrument shown would have a fractional magnification. Also, the small angle approximation is only valid when using radians. This would also be confusing to a person trying to reproduce the calculations.
What an excellent video. Engaging and validates all with mathematical proofs. Just one errata: at ~7:20 the presenter incorrectly describes reflecting telescope mirrors as "convex" . Reflectors have concave mirrors. (the post-production test and diagram correctly show convexity). Minor quible. This is college-lecture quality education with practical applications and examples. Subscribe and Like pressed.
SPECIAL RELATIVITY!!! YUSSS! IT'S ABOUT _TIME_!!! Special relativity is my second favorite x_x XD Yes! I am so unbelievable exited right now. Like, I could not wait for next friday. Like, AHH! LORENTZ FACTORS! TIME DILATION! LENGTH CONTRACTION! DOPPLER SHIFTS!! AHH I legit cant wait. lol
1. I woke up 2. I gained friends 3. I got a new puppy 4. I won the lottery (read in the order of 2, 3, ,4 ,1) the first comment I saw of this was from a person called Rhea Recai if your going to copy mention them plz I want to see it spread
Vittamar Akbin how about you make one yourself and our own way :3 also its read that way to trick you you think it would be 1,2,3,4 but its 2,3,4,1 both tell a different story also the biggest thing is last cause in dream when something really good happens you generally wake up after
You told us we could use angles instead of tangents (small angle approximation), then you went ahead and used tangents anyhow. Why bother with the approximation if you are not going to use it?
What happens if 2 photon streams of pi/2 oscilation distance are directionally aligned? Will the stream not be detectable at specific distances? What if the streams are separated by pi? Are the photons annihilated?
We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: apple.co/3d4eyZo
Download it here for Android Devices: bit.ly/3TW06aP
Can you do a mathematics series
Bryson Handy no
Im going to binge watch this Wholeeee playlist as a summer study for 11th grade.
This is how you teach physics . i just loved it .....
Wow I'm amazed I got all of this. I'm so far removed from my academic days. Thats a credit to the writing, interesting and informative graphics, and most of all the skill and engagingness of the presenter. Well done!
I watched this for the first time a little too drunk to really understand, but I'd like to explain what I learned from this:
Nature is really, really smart. Well done natural selection.
Great work! I like your pace it is exactly the type of fast action crash review to get rapid conceptual understanding. I'm reviewing 10 per day. I took 1st year physics 20 years ago and I'm not interested in the details, but the conceptual underpinnings. I hope you go right into more advanced topics.
This is amazing! Can we do an organic chemistry course?
At 7:08, you say, "These mirrors are convex," but the mirrors you are referring to, primary mirrors in telescopes, are actually concave.
Thank you for being so much nicer and more insightful than my real physics professor. TRULY you are the reason I am passing.
me: this looks like something for kids. Ill understand it.
*ten minutes later*
me: wut
wow. visual aperture. such reflection. much refraction.
I love her accent
At 7:08 you said these mirrors are convex but they were concave.
Gr8 vid btw
These physics videos are a lifesaver! Thank you!!!
I am learning optics and I watched 2 Crash Course videos about optics. They were very supportive! Thanks!!
Did anyone else see ET when she was talking about subtending?
Sheah right like someone can hold a College Physics Book with just one hand in a angle where they could have a page open to read to find out near point
Very Helpful video since i study some optical physics.
I SERIOUSLY LOVE YOUR LECTURES AND SHIRT
would you do an episode on the physics of radars (for example: weather radars)?
Could you please make a video on the basics of Particle Physics?
Do a video about electromagnetic waves and spectrum please
OMFG BEST THUMBNAIL IVE EVER SEEN
This video was proceeded by an advertisement for Crash Course. *Crashception.*
Ceprashashion
Cepcrashishification
Crashsepciption
Preceded
Wow much doge. Learned much. Eyes blurry.
Takes me back to 2010.
nice explanation
That moment when you have astigmatism so nothing looks clear 😂
Coooool! I love physics, thanks!
Great Video. And many thanks for speaking bit slow and pronouncing the words completely unlike previous videos :) Good accent btw
Thankyou teacher
I love it when I see ads for Crash Course when I am actually watching there video...
Shouldn't tan(theta')=Height of the virtual image/focal length of the eyepiece?
I agree!
Thanks a million !
best physics teacher!
Good video thanks
nice presentation!!
Nice video but i think you missed the important derivation of magnification i.e m=V/U(1+D/F) where D is the least distance of distinct vision.
Such wow! many education. so phisics
Wow
Such Episode
Much Science
Very Smart
you took a picture of a *mongrel*
you end up with a picture of a *doge*
what sorcery is this?
a *donge*
YUP
Me eyesight is better than 20/20, my Optometrist said my eyesight is 20/12!
She IS so freakin beautiful :(
the emphasis should be on "so" or "freakin" instead of "IS"
Nope
Much beautiful. Much Wow. Wow
No
Is she Southern Indian? I am unsure
I just got an add for crash course on this video
What exactly is used to absorb photons in digital cameras?
I need a video on tension!!!
My near points for both of my eyes seem to be at about 12 cm. But I'm not nearsighted, at least not in my dominant eye. And even my weaker eye seems to be less nearsighted than the eyes of most people who wear glasses. I feel special. Maybe that's why I'm so good at finding four-leaf clovers.
i dont get it :(
5:21 the image used is misleading. Assuming that the lens materials are the same the objective lens should be thinner and have a longer focal length than the eyepiece. The instrument shown would have a fractional magnification.
Also, the small angle approximation is only valid when using radians. This would also be confusing to a person trying to reproduce the calculations.
Because even if you've never picked up a camera or a smartphone in your life, you're "probably" still using your eyes
Hope they talk about shadows and darkness.
What an excellent video. Engaging and validates all with mathematical proofs. Just one errata: at ~7:20 the presenter incorrectly describes reflecting telescope mirrors as "convex" . Reflectors have concave mirrors. (the post-production test and diagram correctly show convexity). Minor quible. This is college-lecture quality education with practical applications and examples. Subscribe and Like pressed.
I want to help crash course by making videos like them I was thinking Math?
How to
James Soe I was thinking Math SUX!!!
*POOFFFTT*
That was the sound of my mind being blown
Pedant here, is a camera the "Reason" we can see you?
Surely it is the tool used to capture the video, the reason is something else?
The reason is clearly because of the big bang; or whatever happened before it.
Do another medical series
Two Of The Recent Videos are not Added To Physic Playlist
Episode 40 and 42
Don't forget about astigmatism
Do you guys have a book i can download
A doge meme, Why
SciFi is officially a normie network
The doge dog is kinda cute. :3
Planci Acanthaster
not kinda
but is
Galileo developed his telescope for the Doge of Venice.
True, true.
Hey guys, look at the moon at 3:49- Spielberg would be proud
Is it your guy's goal to take everything we learn in highschool and put it into video form?
Optical instruments? Optican approves this message.
Sorry for taking your opia Shini. I will give it back as soon as I can.
Where's the #40 episode?
Nice thumbnail...such dank meme.
SPECIAL RELATIVITY!!! YUSSS! IT'S ABOUT _TIME_!!! Special relativity is my second favorite x_x XD Yes! I am so unbelievable exited right now. Like, I could not wait for next friday. Like, AHH! LORENTZ FACTORS! TIME DILATION! LENGTH CONTRACTION! DOPPLER SHIFTS!! AHH I legit cant wait. lol
Am I the only one who noticed that she never blinked when talking about what we learnt today.
My near point was around 12cm, who is included in the calculation of the average?
Where is number 40?
1. I woke up
2. I gained friends
3. I got a new puppy
4. I won the lottery
(read in the order of 2, 3, ,4 ,1)
the first comment I saw of this was from a person called Rhea Recai if your going to copy mention them plz
I want to see it spread
flutter grace nice to see credit where credit is do
and whats so special about that comment?
Vittamar Akbin its cleverly put together
I think it is just "meh". Why not read it 4,3,2,1? It is not that clever if other arrangements make the same sense.
Vittamar Akbin how about you make one yourself and our own way :3 also its read that way to trick you you think it would be 1,2,3,4 but its 2,3,4,1 both tell a different story also the biggest thing is last cause in dream when something really good happens you generally wake up after
A good video but only a slight nod to Antoine Van Leeuwenhoek which is a pity.
😊
In India hyperopia us call as hypermetropia
1:31 to a physicist:
eye, eye, eye, eye, eye. All eyes.
anybody notice the hagrid on the moon 3:48
I think that's E.T, but well done for spotting it.
hi
My near point (11 years) is 6 cms is that really weird?
How can you not click on the doge
I see red and blue lines
Did anyone notice the man riding a bycicle at 3:49
look at the moon
Lol, people hating but the doge is the only reason I decided to watch this video xD
Mam can we make telescope at ur home to see moons & stars?
You told us we could use angles instead of tangents (small angle approximation), then you went ahead and used tangents anyhow. Why bother with the approximation if you are not going to use it?
I'm a simple man, I see doge I click.
3:49 ET phone home
what if I have astigmatism? My eyes are really crap-I can't see anything close or far away.
Concave+Bats=Batcave
What happens if 2 photon streams of pi/2 oscilation distance are directionally aligned? Will the stream not be detectable at specific distances? What if the streams are separated by pi? Are the photons annihilated?
I see everything like game simulation or somhing!
This was really really fast
isn't this supposed to be #40 instead of#41
Wow, she's beautiful.
Rip Crash course Physics 😭
Why can't my professor explain things this well D:
Who came for doggo
My thumb is 216 up.
Hold up. Slow it down coach!
- nolifeshaq
37th
Ow my eyes hurt now..