The First Telephone

This video demonstrates how to construct a working model of Alexander Graham Bell's first telephone. This phone was constructed in 1876 and supported Bell's successful patent application for the first telephone.

[Frances]

This seems deceptively simple. I always thought the principle behind the phone was magic.

[plasmodiumfalciparum]

When I tried building this, I needed to add salt to the vinegar in order for it to work. Furthermore, the signal is so strong, I can hear the message very clearly!

[NatureForce]

I'm in a rabbit hole now, really trying to educate myself on things we take for granted because we're born into an era that already has everything invented and perfected, not really needing to understand the principles behind them! This is soooo cool! As an African American woman in my 20s, I want to acquire and understand these everyday things. So grateful for this video and the eloquent, detailed, easy-to-understand set-up of it. Thank you for posting!

[oiurehj]

In 2002 the American Congress recognized the Meucci's invention as "the first telephone".

[trailkeeper]

We must understand the primitiveness of all this.  The light-bulb was not even available yet.  Speakers and Microphones, and amplifiers were not available or thought of yet, and the record/recording machine was only being considered about this time.  So in a way, Bell also invented the first speaker and microphone.  It took quite some time about 50 years, till we have the coil/magnet speakers and microphones of today.

[muhammadhussainsarhandi]

Sir you always rock, all of us learn a lot of Physics concepts from your excellent videos. In only 10 minutes duration video, you teach us all those excellent concepts, which our University Teachers can't teach us in a 4-years Bachelors Degree program. Sir may you always live happy, healthy, wealthy, respected life with your family and friends. We always love you Sir.

[yyhhttcccyyhhttccc]

its amazing to see how pepole managed to make theese things shame that nobody really knows about the pepole who made it cause they deserve more credit

[mrsalavati]

Wonderful video and tutorial. I was clapping for you, when i heard the device work.

[das]

This is an important video because it discusses the pioneers original thoughts .. ty

[polishpat]

With all our pre knowledge and advanced technology, this is obviously still difficult to pull off for the average person. You.even needed to use a tester which Graham Bell didnt have. And it's still a challenge.
*THIS PROVES ALEXANDER GRAHAM BELL WAS A

[MixolydianMode]

Is is always a pleasure to watch your videos. Thank you!

[captainobvious]

K. I made one. How do I install Angry Birds?

[Legomaster]

Thank you for posting this, I find this very interesting and cool!

[abrahamgetahun]

Please keeping adding awesome videos like this. Always great to watch them!

[arturouriarte]

Most amazing is, I think, is Mr. Bell's idea of convertining vibrations in a conducting liquid into an electric current. Thanks for th video.

[OllyJC]

I'm glad I found this historical and educational film on blackberry phone devices

[ACPCalin]

Woah! That's so cool! I'm definitely going to try making one of these. Never would have thought the principle behind the first phone was so simple. I'm a bit curious how it would have sounded if, instead of a speaker, you used the electromagnet with the metal switch(is it like a relay? )

[kinescope-zrlh]

I have a book from 1888 called "the farm and household cyclopædia" in the book there's instructions for a telephone. Here they are

To Make a Cheap Telephone. Take a wooden tooth-powder box and make a hole of about the size of a half crown in the lid and the bottom. Take a disk of tinned iron, such as can be had from a preserved meat tin, and place it on the outside of the bottom of the box, and fix the cover on the other side of it. Then take a small bar-magnet, place on one end a small cotton or silk reel, and round the reel wind some iron wire, leaving the ends loose. Fix one end of the magnet near, as near as possible without touching, to the disk, and then one part of the telephone is complete. A similar arrangement is needed for the other end. With this one can converse at a distance of about 100 yards

[mehmethasgul]

This video is so helpful to understand how do phone works.

[olliemoore]

Brilliant demonstration. I want to try it. Can you you show us how to connect the battery to this model?