JC Bose contribution was immense

Thank you miss Kathy for bringing us up-to-date on the development that Marconi went through, to establish his communication company. However, everyone keeps missing the 1st proven wireless communication. Dr Maylon Loomis, a dentist in the state of Virginia, obtained patents and was working with the US Navy after he performed the 1st wireless communication between 2 mountain tops,14 miles apart using kites with 300' wites going to an arc point on the ground, keying the circuit with a telegraph key. His 1st documented experiment with witnesses to testify, occurred several years before Marconi was even born. He was making progress in developing his project, when a nationwide economic panic occurred, scaring off future investors. He died almost broke with no further progress being made.

I believe there is an article in the ARRL QST magazine, which speculated Marconi did hear the signal on that first transmission due to harmonics from the transmitter and a receiver with low selectivity, so instead of being at medium frequencies that would be unlikely to get through, the transmission and reception was at HF which was likely to get through.

I've heard the Russians also were on radio transmission research before Marconi, but it was done under military secret. Years ago I heard on the BBC that there's a working radio in a Russian museum marked with the date of its creation, the inventor being a certain Popov before Marconi. I haven't researched it, though.

Sir Jagadish Chandra Bose was the person who first demonstrated the science behind capturing radio waves. Wondering how he is not as well known as Marconi? This is because he never patented his work. Bose is known as the father of wireless telecommunication. He had invented the Mercury Coherer, a radio wave receiver that was used by Guglielmo Marconi to build an operational two-way radio.The science behind capturing radio waves was first demonstrated by Bose. While Marconi was celebrated for his invention, Bose remained unknown to many, as he never patented his work.

@Kathy_Loves_Physics

4 жыл бұрын

So sorry about skipping him. I hadn't heard about him until after I made this video but I will try to correct my Euro-centric history in the future.

@shawnmulberry774

4 жыл бұрын

@@Kathy_Loves_Physics Don't feel too bad. It was largely suppressed in the way non-white, non-male, non-British were traditionally marginalized. I've always looked at Marconi as a resourceful opportunist who was willing to exploit others ideas as his own. When you think about that then it is not hard to imagine him becoming fascist.

@js913

3 жыл бұрын

@@Kathy_Loves_Physics please add him in separate video. Western world largely neglected indians.

@zes3813

2 жыл бұрын

@@shawnmulberry774 wr

@Rod_J

2 жыл бұрын

If I remember the story correctly, Marconi was so afraid of the actual inventor getting the credit that he hid the device inside a box and would not let anyone see inside.

Sir JC Bose was a quantum Indian.

Excellent and very informative video. Subscribed!

Fantastic channel for we learn so much from the greats and history shows the path while unravelling the questions before them, so thank you from me as you do a very good job.

You omitted the part of the story when Marconi did receive the first trans-Atlantic radio transmission fro Europe at Signal Hill on the Island of Newfoundland.

When Aleksandr Popov finally "invented" the radio he was able to listen to the BBC.

@nitothegravelord7798

Ай бұрын

But he created the radio-transmiter in 1895, along with Tesla, when marconi invented it in 1901, lol.

So enlightening. I always tell folks not to believe everything you hear when it comes to famous inventors.

Excellent video! Thank you!

Great and Interesting piece again!!!! Every time I go to Starbucks for coffee and bagel, my first order of business is to watch one of your productions while enjoy my coffee and bagel!!! However, the "one" video always turns into 3 or 4 videos urged on by your "cliffhangers"....lol! Keep up the good work!

What a wonderful contribution to an historical perspective on science. Thank you.

You're a wonderful lecturer, thank you so much for your enlightening and entertaining videos.

@Kathy_Loves_Physics

4 жыл бұрын

You are welcome and glad you liked it.

9:30 what a knowledge nugget, thanks for sharing all of these ❤️

The Russian had their own radio inventor, Alexandr Popov even if he himself stated that Marconi was the father of the wireless (but Popov was late by only a few months).

I'm so glad that I stumbled across your vids. The Google algorithm got something right this time. This is High School Physics, with better detail and some much appreciated history. I usually had to look that up o my own, in my school library; so old fashioned ... I'm in my Seventies now, but I feel like a kid again when I watch these AV treats.

Hi Kathy, hats off. You have to read N. Tesla's Colorado Springs notes _diary made from 1899 to1901. It is not a nonsense to use energy of ionosphere as (spheric) condenser to discharged it. Maybe technically impossible, but conservation of energy ok

great video

Just found channel son of a EE so love this Happy Holidays

Love the details!

Absolutely brilliant!

I tried finding this video by searching your channel for #29 but nothing came up. You might think of putting those titles in the description so they can be searched. I eventually found it by looking at the date on #28 and then sorting your videos by date. Great historical information. I will definitely remember the date of the last time there were no human transmissions.

At 6:00 it was the letter 'S' , not 'SOS', that Marconi claimed to have heard at Signal Hill which overlooks the city of St. John's, Newfoundland. This is not a criticism, but a correction. You provide so many facts, I would guess errors are

@TheHsan22

2 жыл бұрын

I think she’s just using the term “SOS” for a radio signal with morse code. SOS (as a distress signal) didn’t come about until ~1905.

Whoa, i had no idea you could detect radio waves with metal powders, or that it still isn't well-understood. Thank you for another great video!

@Kathy_Loves_Physics

5 жыл бұрын

I didn't know about the coherer before I started studying the history of electricity either. It is totally crazy. There is a great old TV series called, "The Secret History of Machines" about the history of radio where they show it working and it is crazy.

@andreasschmitt2307

2 жыл бұрын

Tesla used this principle in his remote control; the receiver was a tube filled with metal oxide powder, which got conductive by radio waves. Because it stayed conductive Tesla used kind of a clockwork to turn the tube and bring the powder into disorder again.

@BFD378

2 жыл бұрын

kzread.info/dash/bejne/ZKajqZajec3cdc4.html here it is

@spiritinthesky572

Жыл бұрын

It won't be that understood until people figure out the earth is not curved and it took 500 years of brainwashing to convince us it is to hide technology

Oliver Heaviside definitely deserves a lot more attention and credit.

I Really liked this Video. Please continue the good work madam

@js913

3 жыл бұрын

JC Bose was the man

Xaverian Jagadish Ch. Bose's London RADIO/wireless telegraphy demonstration was much before Marconi's patent.

You are amazing...How about a video on how Hydraulics and Electrical formulas are very similar? Where/how did you learn all this?

Lovely video

SUPER 💡 INFORMATIVE

The answer is, none of those people. It was an American dentist, Mahlon Loomis, and it was decades earlier! Loomis's story is a truly fascinating one that could well be the subject of one of your videos, but his invention became a historic dead end, and Loomis wound up having no lasting contribution to the business of wireless, and none to the theory. Loomis ran up two kites with wires, in the style of Franklin, at a distance from each other. One had a telegraph key to ground, the other a spark gap to ground. When the kites were at the same height, he was able to transmit from one to the other. Not knowing anything about Hertzian waves, Loomis thought he was completing a DC circuit thru the ground and some channel out of parallel ones that he hypothesized existed in the atmosphere. We now know that he was tapping the sky-to-ground DC potential for the transmitter, and then creating r.f. transients by keying what was effectively an inductive resonator in the form of the long kite wire. When the kite wires were of the same length -- i.e. the kites were being flown at the same height above terrain -- they were resonant. So he didn't know what he was doing, but it worked. He got a US patent for the first wireless apparatus in 1865, and radio amateurs re-created it several decades later to mollify skeptics that Loomis had really done it. Sadly, Loomis was unable to sell his invention, even when he was able to make it work with the Bell telephone in 1877; I suspect the modulation was not great, but the nonlinear characteristics of the carbon microphones of the time could produce r.f. transients, and as many have shown, it's not hard to get some inefficient demodulation to receive sound without any specific electronic components.

wOW! jUST Loved my first video of yours, Kathy! I shared it to Facebook right away. I wish I had you as my teacher when I was a kid!

@Kathy_Loves_Physics

4 жыл бұрын

Thanks so much. Extra thank you for sharing it :)

"Ezina ekinez egina", Basque saying meaning: "the impossible is done through action". I got the feeling that Tesla was to obsessed about patents and that instead home-educated Marconi was only interested in achieving. That's why he won. And probably being home-tutored helped, not so much in grounding his knowledge but in securing his self-confidence. School destroys self-confidence.

@awancah7309

Жыл бұрын

Tesla only wrong about practical used ....

How many Marconi companies were there? General Electric Europe was Genalex/Marconi-Osram-Valve. There was a Marconi Wireless Company in the USA, and an Italian Marconi Wireless Telegraph Company, and in Canada a Marconi Test equipment Company. In communist Czechoslovakia there was a Tesla company that mostly made passive parts and vacuum tubes. The US military comically used Danish made Bruel & Kjaer equipment that was chock full of Tesla parts, but they staunchly refused to use any Warsaw Pact nation or Soviet made parts for anything and everything else.

very accurate and easy to comprehend

It s such a pleasure tom learn from you...greetings

@Kathy_Loves_Physics

4 жыл бұрын

Martin Malloy greetings back. Thanks for leaving so many comments - cheers from San Francisco

Where can I find lecture about atmospheric electricity.

Marconi never lost the view on a radio system as a whole, utilising already made subsystems, and inventing the components that were missing. The breadth of his work was vast; other inventors limited themselves to small parts of the wider system. Marconi was self-educated. Prove is the studies on propagation of radio waves he authored, and all calculations for antennas. Tesla played a very limited part in the radio discovery, as he was working on power distribution. Tesla had no theoretical knowledge of physics, and come to refuse all accepted science. The role of Tesla has been magnified on the Internet lately, without consideration for existing historical about the very minor role, if any, he had in the development of radio.

God, we "moderns" are so jaded. Just sending a mere radio signal was a huge deal. Mixing it with code and sounds seemed magic.

According to Tesla's autobiography J.P. Morgan did not fund his transmitter: "I would add further, in view of various rumors which have reached me, that Mr. J. Pierpont Morgan did not interest himself with me in a business way but in the same large spirit in which he has assisted many other pioneers. He carried out his generous promise to the letter and it would have been most unreasonable to expect from him anything more."

Interesting Telsa had a one of his labs down the street from my house in Rocky pt/Shoreham LI. NY and Marconi also had a Lab for one his trans-Atlantic transmissions from the same area which became the RCA property. his "Shack" on the High school grounds

brilliant

at that time, many knew about electromagnetic induction, only shown into labs and classrooms, Marconi wanted to see how far could he detect it, by sheer trial and error.. its interesting the story that tells his helper shooting a gun far at the distance when he received a signal. I´d like someone to tell me about another story of him remotely turnig lights of an italian city on and off from a distant sheep in the mediterranean ocean. my father story I give high credit to the improvement of the partilce detector]( what a "coincidence" with the carbon microphone!!!) would love you to investigate who and when they came up with the "galena detector" thank you

Hi Kathy, thanks for another great video. I just visited the Telegraph Museum in Porthcurno, Cornwall where Marconi did some of his stuff. They give a talk at the museum on the history of telegraphy and they talked about a demonstration in 1903 given by Marconi, who sent a supposedly secure Morse code message to a waiting audience at the Royal Institution in London. Unfortunately it wasn't and was hacked by rivals! "There was a young fellow of Italy, who diddled the public quiet prettily"

@Kathy_Loves_Physics

5 жыл бұрын

Ha! That sounds like a fascinating museum. Now I just want to travel around the world going to science museums and seeing science history!

@bobbymcdingdong

5 жыл бұрын

That's a great idea for a new channel @@Kathy_Loves_Physics

First it was amazing. Edison also had some patents, which transfered to Marconi. Edison formally transfers to the Marconi Wireless Telegraph Company several patents bearing upon the transmission of wireless messages, and gives his services to the company as a technical director. The consideration is a large block of the company's stock.

A fantastic book on this is "Early Radio-Wave Detectors" by Vivian Phillips

As a longtime Shortwave listener, I totally understand the ionosphere thing.

First Trans Atlantic signal was received in Newfoundland Canada (Now named Newfoundland and Labrador)

Also Built transmitters on capebreton island nova scotia.

You're criminally underrated. These videos are awesome

@Kathy_Loves_Physics

3 жыл бұрын

Erald Coil thanks. I guess that is better than being criminally overrated- I guess.

@eraldcoil4262

3 жыл бұрын

Kathy I was writing a paper and your videos helped me immensely. If you would like, I would like to get in contact with you for a friendly chat. Can I get an email?

@Kathy_Loves_Physics

3 жыл бұрын

@@eraldcoil4262 Sorry I didn’t see this till now, my email is on the about me section if you still want to have a conversation

Hey Kathy! I just discovered you minutes ago BUT I can tell from some earlier surfing that I'm going to like you. I subscribed right away so you don't get away.

@Kathy_Loves_Physics

4 жыл бұрын

David MacPhee thanks I’m not going anywhere

@triumphbobberbiker

2 жыл бұрын

So Tesla did not invent the radio after all. He contributed ideas -along with Lodge - that led to its being created by others, chiefly Marconi

Great content as usual but this story is not complete without mentioning another Russian, Aleksandr Popov. He had independently improved on Lodge's coherer work around the time of Marconi's announcements, so in Russia he is officially recognised as THE inventor of radio, although he initially was building a lightning detector in 1895 and only refocused on wireless communication later, demonstrating it in 1896. en.m.wikipedia.org/wiki/Alexander_Stepanovich_Popov

@jorgediez4593

2 жыл бұрын

Russian most of the time are great people, expect when they are killing Ukrainian children. I need to add I have great respect for Russian Engineers.

You are an Angel!

FINALLY I'VE DISCOVERED YOU _ To explainning for me What does you understand depply.

One account was JP Morgan wanted Tesla to develop radio have communications between his facilities, factories, plants, etc. Tesla never developed radio to the point of practical communications and eventually JP Morgan ceased funding.

9:21 is pretty powerful to think about.

After enough Jameson, every idea becomes great. .... .. .... ..

why didn't you mention Popov in the video?

Galvani, of course. In 1791 Galvani installed an antena on top of house, connected the wires to a frog's leg. When an electrical discharge occurred in a thunderstorm, the frog's leg would move.

Just for the sake of History of Science, an italian professor described the making and use of a "coherer" and published his findings in 1884 and 1885 (!) in the italian journal of Phisics "Il Nuovo Cimento"... His name was Temistocle Calzecchi Onesti

Kind of shocking that Ferdinand Braun isn't mentioned

Who is the inventor please?

How to make resistor and reciver

Ma'am do make a video on indian scientist like JC bose

@Kathy_Loves_Physics

2 жыл бұрын

I am planning on doing that but I am waiting until I get closer to my videos on the history of semiconductors as Bose had (in my opinion) a very important role to play in their development.

"During the day"? I didn't know that sunlight-radio wave interference was an actual thing!

@Kathy_Loves_Physics

2 жыл бұрын

The sunlight doesn’t interfere with the radio wave but it does change the composition of the atmosphere a tiny bit and makes it less distinctive layers which means that the radio waves are less likely to bounce off the heaviside layer. All of this means that at certain frequencies radio waves travel further at night than they do during the day. Crazy eh?

Amazing, how she knows these all!!!?

Useful lectures. A pity about the vocals that introduce them. I dutifully suffer them to get to the meat.

Please, take a look at father Landell de Moura history (Roberto Landell de Moura).

I would mention there Tesla's remote controlled boat. When that actually happened in this wireless story?

@smith167

2 жыл бұрын

haven't you seen the rest of her videos lol? in almost every video of hers Tesla is downplayed to nothing more than just an average engineer.

@joshicune

2 жыл бұрын

@@smith167 I start to realize this :-( what a bias :-(

Where could I find a verifying article that Marconi told his valet. "I'm very sorry, but I'm going to put you and my friends to considerable trouble. I fear my end is near. Will you please inform my wife? Respectfully just curious. I enjoy your videos very much. Thank You

I didn't get the answer who really invented radio

Very interesting videos. But please leave that music background, much better listening to youre story. SB.

@Kathy_Loves_Physics

Жыл бұрын

Thanks, I thought the background music would help people focus but after multiple people told me that it was distracting I drop the music from later videos. However, I’m not sure how to remove it from old videos, so I’m very sorry about that.

Hi Kathy, following up on your video I read much of the supreme court ruling (reversing Marconi's patents in 1943). I realize you might not be a lawyer, but are you not surprised by all of the technical language in the opinion of the court?

@Kathy_Loves_Physics

4 жыл бұрын

Jeff Gross honestly, in all my historical research I have only read one Supreme Court case so I have no comparisons. But, it was pretty technical

@jeffgross9336

4 жыл бұрын

@@Kathy_Loves_Physics Thanks for your reply. I swear I'm not a lawyer, but Justice Fankfurter's dissent (1943) made me question my opinions (as Tesla is now a cult hero).... Anyway here is my question, If Popov invented the antenna with the goal of storm prediction (not morse code transmission), and Tesla invented the coil because he wanted to wirelessly transmit electric power (not morse code), and Lodge wanted to see electromagnetic waves because he was hard of hearing (rather than transmitting morse code) is Marconi really the pirate ? Obviously the 1904 patent office reversal wreaks of nefarious intrigue, but at the end of the day is Marconi a bad guy if tar antecedents he put to use were not interested in morse code transmission? Now obviously, lying about the December 1901Transatlantic signal and cozying up to Musollini isn't a guy I'd want to date my sister....but what do YOU think? If Tesla didn't mind him using the patents, why should we?

@Kathy_Loves_Physics

4 жыл бұрын

Jeff Gross I agree. I think that Marconi was a great tinkerer and combined ideas from lots of people to make his empire. But he wasn’t a great scientist and probably shouldn’t have won the Nobel freaking prize. I actually made a video about why the common myths about Tesla are told and believed (like the erroneous idea that Tesla invented AC).

@jeffgross9336

4 жыл бұрын

@@Kathy_Loves_Physics Aced my paper, thanks for your help

Apparently just like politics and war, the history of technology is also full of lies and con. Thanks for opening my eye on this.

@Kathy_Loves_Physics

3 жыл бұрын

I think the history of anything in history is full of lies and cons. And honest brilliant people too.

Winning

You are a brilliant and highly educated person. But you do know it is pronounced, Teleg--raphy. Not, Tele--graphy. No no no. It's okay. It was a cute flub. You're good. You're very good. I'm truly enjoying your, KZread videos. All of them! I'm a bit scientific also. I'm a retired, 50+ year engineer. From NBC-TV. At the Network. In Washington, DC. The News Hub for NBC. And so I'm kind of like, Scotty from Star Trek. When something is needed we didn't have. I would toss something together in 10 minutes. Just like on Star Trek! And you have to know what you're doing to accomplish those things. And taking quite a few liberties as you go. To make something from nothing! It's a fun challenge! I loved it! As I would say the technical day numerous times throughout my career with them. And later they would purchase the proper equipment. It was always very funny. How I could throw things together. I don't even know how I did it? I just did it. That's what engineers do. We are problem solvers. And I could get it on the air. Nationwide! So you've got real engineers who are fan viewers. Because we love science! It's what makes our Modern world go round! So keep the great shows up my dear! We love you! Even if you can't pronounce, Teleg--raphy. The right way. You are, Forgiven! Kissy Kissy RemyRAD

JP Morgen didn’t give Tesla the money for a whole earth enegery tower but for a radio transmitter. Tesla lied to him about the purpose.

Goo glee Elmo

That destroy our ozone layer.

There have been a number of contentious awardings of that Nobel prize and contentious non awardings . Politics and nepotism.

Elisha Gray "My brain is only a receiver" - Tesla

Marconi whole concept base from jc bose ultra short radio wave device . Jc bose do experiment before marconi,

The Victor write the history,, Nicolas Tesla never made further elaboration about wireless telecommunication and has the theory about wireless electricity.

Dear Kathy, you've forgot to mention one pioneer of wireless communication, Jozef Murgaš, who has been visited by Marconi's agents...try to explore that name, you'll be surprised

@Kathy_Loves_Physics

4 жыл бұрын

I will look him up. Sounds interesting thanks

Nathan Stubblefield

Marconi knew the earth is flat and not moving :)

great video - I had heard Marconi used Tesla's patents, seems like at every turn Tesla got mowed over, He wasn't interested in making money - I think Morgan was all about profiting from the large radio tower, Tesla wanted to allow the masses to access free energy... kinda sad. Kathy, again you are spot on, I'm looking forward to watching the next video !!!

@criscrosxxx

2 жыл бұрын

No free energy bro . His idea wouldn't have worked . Its deep but it is what it is

@joshicune

2 жыл бұрын

@@criscrosxxx Nothing is free because we sell everything, but energy is everywhere around us. One day someone will figure out how to use this energy.

@criscrosxxx

2 жыл бұрын

@@joshicune lmao

N.Tesla was the GREATEST SCIENCE GENIUS EARTH has known . Did Nikola not build a SUPERTUNED RC BOAT ... A wireless and discrete radio transceiver.

Wireless telegraph predates electricity - so invention is the wrong word here - it converges when radio is found/decided to be electromagnetic wave/a form of light. The invention/innovation is the detection and modulation. Tesla's patent failed on this(inovation) - so was struck as to broad. This is a case where Tesla's patent "piracy" failed - the US patent system encourages international IP theft by design. :) Thank you for this ...

And what did Bose do in the field of radio waves?

@Kathy_Loves_Physics

2 жыл бұрын

Great question. Bose was the first person to realize and patent that semi conductors could be used in radio receivers. He also was a pioneer in microwave radio transmission. And it was because of his discoveries that in the 1930s they looked into using semi conductors to receive microwave signals and then when growing better semi conducting crystals discovered the two kinds of semi conductors (N and P) and the properties of an NP junction which led to our modern world. So he was hugely influential but not so important for the early development of the wireless telegraph.

@sundeutsch

2 жыл бұрын

@@Kathy_Loves_Physics Thank you so much for the detailed reply.

For your Kind information..... Jagadish Chandra Bose... invented Wireless.....

@Kathy_Loves_Physics

5 жыл бұрын

I am so very sorry that I did not include Bose's input. He was very important and I apologize for missing him.

@sudipsarkar1512

5 жыл бұрын

Hope u r now known to it that J.C Bose first Invented and use Wireless system....

@hrittikkarmakar9483

4 жыл бұрын

Yes It is J.C.Bose who invented wireless But the basic idea was implemented by Nikola Tesla

@christopherjohn4283

3 жыл бұрын

@@Kathy_Loves_Physics I hope that you can make a video on Bose

@kailashchandra4473

3 жыл бұрын

Lodge was 1st one to demonstrate wireless telegraphy followed by jc bose and marconi

Tesla had no way of knowing that infinite power transmission was not possible? Well, sure. Nothing is truly known until it is tried out, however there was plenty of evidence that infinite power transmission is not possible. The universe existing is one telling indication.

He didn't hear an SOS It was the letter s on signal hill nfld Cape Cod came later

Minor correction... Tesla died with a government pension from his homeland.

Tesla used electrical effects to do the job. Not radio waves.

Ishwar Chandra Bidyashagar from Bangladesh invented the radio in 1895.

@criscrosxxx

2 жыл бұрын

India*

Nicola Tesla `s contribution was and is so ahead of his time that even to this day ,his intuitive understanding of radiant energy, aether and conter -space concept are very rapidely swept under the carpet , himself called lunatic... or worse...Just 17 frauded patents...Italian money bought Nobel Prize...

Kathy, we Italians consider Marconi as the Father of Radio. I realize that the story behind it could be quite different: we had fascism and therefore we could have - how to say? - exasperated facts a little bit. I live a few kilometers from "Collina Dei Celestini" (Celestini Hill), that heap of clay that lies behind Marconi's villa, now interely cultivated with alfalfa, and which the first radio wave "useful for telegraphy" actually surpassed in that famous August of many, many years ago. I'm sorry to contradict you, but I believe that that was the real and only "spark" that radiotelegraphy revealed to humanity, leaving a small window of the attic of Marconi House, today remembered by a marble plaque which says "the first radio wave passed through here" I believe that Marconi must be recognized as the first to have "invented" the ground connection. Actually, grounding made the difference. This cannot be contradicted. A curiosity: the phrase that you refer to as "Damn The Sun", in the original dialect of Bologna, as Marconi himself pronounced, sounds: "Bòia d'un sòul!", being it one of my favorite... insults, when I complain of the sunny and torrid Bolognese summers. Here summers are terrible to stand. Congratulations. You are my favorite and ultimate you-tuber. I admire how you deepen this matters. Not easy deal, indeed. Ciao! Love from Italy!

@Kathy_Loves_Physics

2 жыл бұрын

Marco, I think you are right about Marconi being the father of grounding wire and just believing that it would work long-distance which is no small thing. K