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Alexander Graham Bell invented this device in 1880! It transmits sound via a beam of reflected light!
YouTube-HackaweekTV
2011/06/02Alexander Graham Bell did not consider the telephone to be his greatest invention. This video takes a look at this remarkable man and what ...
YouTube-ScienceOnline
2014/10/20動画の見どころ1/10枚目 Bell's circuit diagram
動画の見どころ2/10枚目 Bell Homestead National Historic Site
動画の見どころ3/10枚目 Selenium cell
動画の見どころ4/10枚目 Bell's photophone transmitter
動画の見どころ5/10枚目 Photo Resistors
動画の見どころ6/10枚目 Testing the circuit
動画の見どころ7/10枚目 Test with sunlight
動画の見どころ8/10枚目 Outdoor test
動画の見どころ9/10枚目 Test transmission
動画の見どころ10/10枚目 Conclusion
How to make a photophone to transmit sound using sunlight. This invention by Alexander Graham Bell works by reflecting sunlight off a mirror ...
YouTube-RimstarOrg
2015/06/05A brief history and explanation of the physics behind the design of the photophone. Here are timestamps for specifics: 00:00 - Intro about ...
YouTube-Paga Wiggy
2019/06/26動画の見どころ1/14枚目 Intro about History and Physics Series
動画の見どころ2/14枚目 Description and History Of The Photophone
動画の見どころ3/14枚目 Photophone Vs Radio
動画の見どころ4/14枚目 The photophone in WWII
動画の見どころ5/14枚目 How the photophone led to modern fiber optics
動画の見どころ6/14枚目 The physics of the photophone
動画の見どころ7/14枚目 Electromagnetism in the photophone
動画の見どころ8/14枚目 Photoacoustic, photoelectric and other material properties
動画の見どころ9/14枚目 Detailed design of the photophone
動画の見どころ10/14枚目 Design of transmitter
動画の見どころ11/14枚目 Design of the receiver
動画の見どころ12/14枚目 How speakers work
動画の見どころ13/14枚目 German tank photophone design
動画の見どころ14/14枚目 Summary
Bell's photophone Less than 10 years had passed since the appearance of a wired phone, when its author, Alexander Bell, developed the first ...
YouTube-ChipDipvideo
2012/01/28How Bell Telephone's PicturePhone, introduced in 1964, flopped yet nearly catalyzed the internet. Technically, it was an amazing ...
YouTube-engineerguy
2014/06/17See more from the AT&T Archives at http://techchannel.att.com/archives Before 1970, the Picturephone was a long-awaited piece of technology ...
YouTube-AT&T Tech Channel
2012/06/29How To Send Photo Booth Pictures To The Phone Via Text Message Using DSLR Booth & Twilio. Just 2 guys who created a photo booth business ...
YouTube-Boother Tools
2023/01/19Prelinger Archives - No audio American Telephone and Telegraph Co. (AT&T), Bell Laboratories Click to subscribe! http://bit.ly/subAIRBOYD ...
YouTube-AIRBOYD
2013/12/03Western Electric Picturephone Model II demonstration at the 2016 Placentia Telephone Show.
YouTube-JKL Museum of Telephony
2016/05/19#astuce #telephone #iphone #camera #video #photo. mehdintech.off. 18.9K. 1884 j'aime ... phototelephone #fullhd #appareilphoto #camaraphoto #astucetelephone ...
TikTok-waqas_kutwaal
2023/12/2264.1K. comment modifier l'appareil photo de ton téléphone pour que sa fille en full HD #configurerlappareilphoto #phototelephone #fullhd #appareilphoto ...
TikTok-actustars
1か月前✍️ #photoshistoriques #photos #photo #histoire #culturegenerale. histoire.en.images ... phototelephone #fullhd #appareilphoto #camaraphoto #astucetelephone ...
TikTok-oxymore213dz
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