@rihamission487
How do you explain everything in one sitting? I haven't noticed any cuts, it's just you talking straight for 20 minutes without missing any points and with accurate emotions and energy. How is it even possible? You are a great teacher. Keep doing what you do. I cannot thank you enough. Your love for physics is unmatched. And ahhh I can finally watch Interstellar and actually understand a few things!
@DN-kz7xl
Love this gravity explanation of the ground rushing up. Now I can drop a plate and blame the ground rushing up for breaking it.
@garymauk2963
I love this guy! He does such an excellent taking a difficult concept and explaining it in easy terms to understand! Bravo!
@minimumphase
Now redo the explanation at starting at 4:41 with the part of ground inverted - the way it is on earth. With this explanation, the apple should move away from earth not towards it.
@jwfans3127
I wonder how that planet was not even sucked into black hole
@nikiprakee8677
I've greatly benefited from your videos, not only in class 10 but also in grasping concepts I previously found confusing or misinterpreted. Your informative content has been incredibly helpful!
@NewtonDKC
What would happen if the people near the center of the rotating space station started recording 2 videos - one streaming live, the other a stand-alone space smartphone that begins recording everything live at the center of the ship and keeps recording continuously whilst traveling to the outer ring (and has storage and power that will not run out). The streaming signal is broadcast while the space smartphone is continuously recording live the entire trip (and is put in a little escape pod and ejected toward the outer edge or traveling inside the ship on a little delivery Robot if it’s all connected and can reach the outer edge people). When the outer edge people start receiving the streaming signal, what do they see? Are there gaps in the broadcast signal, or does it show the center ship people in fast forward gradually slowing down, or what exactly would it look like to the outer ring people seeing it?
Now for the space smartphone: When they receive the space smartphone they stop the recording (which has been recording without stopping the entire trip from the center people to when it reaches the outer edge people). They now begin playing back the recorded trip…does the video, now playing in their reference frame but recorded from its point of view in its reference frame from the center to the edge, what would that video look like to them? Would it start out playing super fast and gradually slow down or just be a super long, super boring video of endless hallways and passing by in “normal speed”?
And just to be extra complicated, what if there were 2 devices recording, one digital and one on an old analog film recorder with rotating gears and wheels and endless videotape - how would the digital video compare to the analog recorded video with both now playing in this outer ring reference frame but recording all the time between? Does digital recording have any difference to the analog recording that had gears/wheels while recording? From the recording device’s perspectives time has just always been the same, but when the people in the outer ring frame of reference watch the recorded videos,starting the playback of both devices at the same time and watch them side by side…do they see video and hear sound that runs at different speeds from the beginning to the end? Do the 2 devices vary compared to each other? Or is just a boring standard speed video on both devices? How does the recorded video compare to the streaming video (if it had been recorded by the outer ring people while streaming and now also played back starting at the same time as the devices that travelled from the center to the outer ring? Hopefully this is an interesting thought experiment and not so obvious that I dont later think “why did I even ask that?” :-) And thank you, love this sort of thing; thumbs up and Sub’d! :-)
@scorpionking8661
I struggle with this theory. Time does not really exist… we as humans made it up and track it with clocks, watches, calendars, etc. you can’t slow down something that does not really exist. Our body clocks age at our own paces.
@pegerockas
Replace the ticking of a clock with beats of a heart. The slower your heard tick, the slower you age and visa versa... Great vid!
@RichBarlow70
This is BY FAR the best explanation of special relativity that I've ever seen! Freaking AWESOME!
@callravik
one of the best explanations ever!
@saadWatchingU
Mahesh Sir, I'm a big fan of yours. I have 2 physics questions. 1. A piece of ice is floating in a glass full of water. After the ice melts, will the height of the water increase or be equal? 2. Suppose I'm carrying a large stone in a small boat in a swimming pool. If I throw the stone in the pool, will the height increase or be the same as before? By the way, I learned the Archimedes law from your video in Khan Academy. Absolutely amazing!
@TheVastUnknown-c8s
Mind = Blown 🤯 Finally, an explanation that makes sense! The way time bends near a black hole is both terrifying and fascinating.
@HutcH68
You know what’s funny. You also just explained why Speed (acceleration?) also slows down time. The further you are away from the center of the rotating ship, the faster you move in relation to people near the center. The more the gravity, the faster you have to move to stay on the surface of the object, if it were not a solid. So, the solidity of the object forces the speed. That’s why objects (gps satellites) have a different time frame as they’re moving faster around the earth, but experience less “gravity”. I think this is the most clearly I have understood this concept. Thanks!
@mk1.6163
Thank you so much for posting these videos, incredible explanations of these complex concepts! Could you make an “I never understood until now” video about why time slows down as one approaches the speed of light? Thank you!
@guruforty1
Dear Mahesh, wait a minute. Apple is outside of the ring, not inside. So, according to this explanation, it should be flying away not fall to the ground! The reason two people on opposite sides of earth, while being pulled to the center are not falling to the center is because of the hard surface they are standing on. Ground accelerating to an object is simply complicating this explanation. Mass causes gravity is simpler way to understand for simpletons like us. Either way, absolutely love your highly enlightening explanations. Every video or yours opens up my mind a little more. Thank you.
@joelt2002
The photon clock is consistently used to explain time dilation, but that assumes that a photon dictates time.
@aaronrandolph261
This is one of the best I have heard when it comes to explaining these complex concepts
@brarlovely556
Beautifully explained
@Mahesh_Shenoy