These guys digested the subject well, so that the viewer can easily absorb it. The focus was on education - not entertainment - Its better not to mix them. Thank You! - no flash - no gimics - no cool camera work - no techno music - no need
Are they really (on average) more clear than the equivalent today? Or is it just that people only dig up and replay the cream of the crop so we get a sort of 'survivor bias'?
Amazing ! Education of such high quality in the 50s . Meanwhile, even with advancement of technology in the present age , I cannot find a better explanation of how reflecting dipoles work.
I love this video! The pace, the verbal explanation, and the music (so good)! I really appreciate the thinking time with respect to the simple animation. It is so minimal in that there are no variables written on the screen, that it actually becomes more understood through the perception of the spacial relationships presented. Thank you.
This is so awesome, and it makes total sense how the reflectivity works. In the previous video, it explained how only the E field reverses when it hits a surface, while the H goes unchanged. And then having the distance a 1/4 wavelength away to phase it properly with the oncoming wave, so it reflects at the right time, is so simple and yet so neato! Haha. I love these old videos. No distracting music, no superfluous words or paragraphs (honestly, having to read and listen to something else you are saying verbally, and at the same time, is like phase cancellation for my divided attention).
Because many videos throw a lot of information too fast and don't give enough time for the reader to digest it, or, they don't go too deep and the pretent you already know deep concepts.
Vintage military training films are a wealth of easy to understand information. Like the Albert Einstein quote, "If you can't explain it simply, you don't understand it well enough."
Muy bueno. Las imágenes gráficas ayudan mucho al entendimiento de una temática que en un principio puede resultar complicada. Es una maravilla de la ingeniería/ciencia
hi, My name Hang, i'm Vietnamese and i am a student.I can not hear what he say, so can you help me make subtile? Can you Write it by English? Thank you so much if you can help me.
The ruby rod in a conventional laser is cut so that its length is close to the wavelength of the output light, plus one quarter of that wavelength. The internal surfaces reflect the energy back toward one another, much like the example shown at 6:00. Since both surfaces are reflective, there is a "hall of mirrors" effect, simulating an array of many, many reflectors. In this way, the ruby rod creates an array of waves that, through interference, produce a strongly unidirectional propagation of energy.
Paulo Constantino Yes. I believe the orbital patterns emerge from standing waves in the electrical field around an atom. So it’s not surprising to find some similarities there.
Is it just me, or do these cheesy old videos work so much better than the current crop of people talking incoherently at 100 words per minute at the screen?
This was very interesting but I'm seeking an answer to a specific question. I'm an older man who grew up when everyone used an antenna for TV. The roof antennas were best but indoor antennas existed too. Indoor antennas had to be made of metal, and those rods had to be able to change size. You could also add some aluminum foil to the antenna to make it work better. Today I use an HD indoor antenna but if it isn't working well on a given night often if I touch it that will help. It's as if my body becomes part of the antenna. I can't understand why these new antennas are helped by flesh & blood, instead of metal? Furthermore, I was taught radio waves don't change. What are today's HD antennas made of?
Is the power of a directed transmission the same as that of an undirected transmission (using the same transmitter without the passive thingy)? Since directivity relies on interference i would expect yes but from what ive read the gain of a directional antenna is greater
6:19. 1/4 wave space reflector in reality works, but is slightly too far spaced. It should be slightly less than that, close to 1/5th wave. Smaller spacings work too such as 1/6th wave.
6 років тому+2
Hi, could you tell me where I can download these original videos? Thank you
Wish they still made films like these. Just the right amount of speed and visual information. Very good!
This is sooo effective because it's made for the military. There's no fluff. Just accurate and important information. This is top notch content!
These guys digested the subject well, so that the viewer can easily absorb it.
The focus was on education - not entertainment - Its better not to mix them.
Thank You!
- no flash - no gimics - no cool camera work - no techno music - no need
Very clear narration style. These early films were such good teaching aids, just the right speed and clarity. Thanks for posting this!
Are they really (on average) more clear than the equivalent today? Or is it just that people only dig up and replay the cream of the crop so we get a sort of 'survivor bias'?
Amazing ! Education of such high quality in the 50s . Meanwhile, even with advancement of technology in the present age , I cannot find a better explanation of how reflecting dipoles work.
Wow. I can not believe this was made decades ago! Wonderful! I finally understood :D
What a great video explaining a complicated topic in simple terms. I've gained much more intuition :)
I love this video! The pace, the verbal explanation, and the music (so good)! I really appreciate the thinking time with respect to the simple animation. It is so minimal in that there are no variables written on the screen, that it actually becomes more understood through the perception of the spacial relationships presented. Thank you.
This is so awesome, and it makes total sense how the reflectivity works. In the previous video, it explained how only the E field reverses when it hits a surface, while the H goes unchanged. And then having the distance a 1/4 wavelength away to phase it properly with the oncoming wave, so it reflects at the right time, is so simple and yet so neato! Haha. I love these old videos. No distracting music, no superfluous words or paragraphs (honestly, having to read and listen to something else you are saying verbally, and at the same time, is like phase cancellation for my divided attention).
Wonderful Video.
Thanks a lot Friend.
There are Great people like you on UA-cam, that's the reason we science lovers like to learn on UA-cam
How the heck does animation and lecture from the 50's top those from today?
I do this for a living and this helps to understand this a lot better than some of the classes i took.
you might have missed an important point... this is Canadian.
Because they aren't to sell you anything.
What I want to know why it's not black and white and what else they hid in tech from us back then.
Because many videos throw a lot of information too fast and don't give enough time for the reader to digest it, or, they don't go too deep and the pretent you already know deep concepts.
With this I finally understood the basics! The old stuff till the 70ies and even 80ies is still good, everything new is mostly low quality.
Great video for any potential amateur radio operators sitting an exam.
Very straightforward and good to digest explanation. Thank you.
So this is how antenna really works. In so many sites i visited, this one is the best. Easy to understand.
and it was very helpful if i found other series
Vintage military training films are a wealth of easy to understand information. Like the Albert Einstein quote, "If you can't explain it simply, you don't understand it well enough."
Wonderful video. Explains a lot in short.
This video blew my mind! AMAZING!
Muy bueno. Las imágenes gráficas ayudan mucho al entendimiento de una temática que en un principio puede resultar complicada. Es una maravilla de la ingeniería/ciencia
As usual, old stuff appears better quality than contemporary crap.
Thank You mister Anderson. An excellent explanation.
this is awesome, seriously best explained,love it
The Laws of Physics never change. Canada. Thank you.
hi, My name Hang, i'm Vietnamese and i am a student.I can not hear what he say, so can you help me make subtile? Can you Write it by English? Thank you so much if you can help me.
The ruby rod in a conventional laser is cut so that its length is close to the wavelength of the output light, plus one quarter of that wavelength. The internal surfaces reflect the energy back toward one another, much like the example shown at 6:00. Since both surfaces are reflective, there is a "hall of mirrors" effect, simulating an array of many, many reflectors. In this way, the ruby rod creates an array of waves that, through interference, produce a strongly unidirectional propagation of energy.
Thank you very much! the videos rescued me .
awesome description of phased arrays!
Best explanation ever
Great Explanations.. plz post more videos like this..
I thoroughly enjoyed this.
finally good explanation, thank you very much
this video is so old, but so good thanks canada
awesome!! Best Explanation
best video on antenna tnk u sir .........
It's very helpful,Thanks
Great explanation on antenna array
Very good video.
Thank you! Very interesting.
I was hypnotized :D
This is excellent video for basics... God bless ya....
Fantastic video
im so gonna do a nice exposition tomorrow ... thanks !
Yeaaaa very cool and well understanding ! 👏🏼🥳🙋🏼♂️🔥
Better explained than my professor :D
amazing how the lobes look just like the orbitals of an atom.
Paulo Constantino Yes. I believe the orbital patterns emerge from standing waves in the electrical field around an atom. So it’s not surprising to find some similarities there.
Okay, so I'm not the only one who noticed that.
Is it just me, or do these cheesy old videos work so much better than the current crop of people talking incoherently at 100 words per minute at the screen?
great add more video like this
classic
and classroom
So interesting!
best video on an internet😍
I was hypnotized :P
excellent video
this life learning lession thanks a lot.
this video got more style than current movies
The Best!
Best explanation
Ooh my god, how good was that!
I would like to learn about antenna gain,, I'm sure it's in these videos somewhere,,, It's very fundamental, I'm enjoying this very much.
Awesome!!
it's really usefull for me ......thanks a lot....now only i could understand the broadside and end fire antennas...:-)
really useful for me too
thank you for sharing
Amazing...
excellent we learn it in short period
superb thanx...
Excellent explanation , is there anyway to do a video about synchrotron radiation . Thanks.
Best video
Thank you. Canada.
best elaboration
nice...thanks
This was very interesting but I'm seeking an answer to a specific question. I'm an older man who grew up when everyone used an antenna for TV. The roof antennas were best but indoor antennas existed too. Indoor antennas had to be made of metal, and those rods had to be able to change size. You could also add some aluminum foil to the antenna to make it work better. Today I use an HD indoor antenna but if it isn't working well on a given night often if I touch it that will help. It's as if my body becomes part of the antenna. I can't understand why these new antennas are helped by flesh & blood, instead of metal? Furthermore, I was taught radio waves don't change. What are today's HD antennas made of?
awesome
Thanks
When kids ask you to tell bed story XD
Is the power of a directed transmission the same as that of an undirected transmission (using the same transmitter without the passive thingy)? Since directivity relies on interference i would expect yes but from what ive read the gain of a directional antenna is greater
Demystified!
Does anyone knows where the other videos are available,?
The different interference patterns of the resultant signal wave is to me analogous to particle spin.
I could have dropped acid had I known things were going to be so hypnotic. 😱
6:19. 1/4 wave space reflector in reality works, but is slightly too far spaced. It should be slightly less than that, close to 1/5th wave. Smaller spacings work too such as 1/6th wave.
Hi, could you tell me where I can download these original videos? Thank you
i wait for answer too i am keen on getting best quality of this video
can i get lecture of full anteena theory??
Standards defined...😚😚
more videos please
More videos plz
gr8
Good presentation but the grandiose music at the end is funny.
Briljant
I always thought the dish reflector was always for receiving.
It never crossed my mind that it could be also for transmitting.
(AV club, I was not.)
the reciprocity theorem shows that they can be reversed (not necessarily as efficient).
Nice lobe
Nice video. Very trippy. Just hope it was about antennas and wasn't the Canadian Gov attempt at mind control! :-)
Notice that in this direction the waves cancel each other oot.
[love reacc]
An instructional film on 'How Not To Be Seen'.
This video is a great sleep inducer lol. 73's
thank u sir - please suggest a site which teaches antenna with maths-- thank u sir
radar tutorial
A little confused
I’m home 🤣🤣🤣
Electron shells.
2020?
1959?
AQ qwwewaxxrthvxe
it is surprising
They take something complicated and make it so simple a child can understand the subject matter.
Wonder if they have a similar film explaining women?
H vectors eh, hosers!