The Telephone - How It Works
10:34
YouTubeNational Communication Museum
The Telephone - How It Works
Have you ever wondered how your voice can travel thousands of kilometres, instantaneously? The transmission of speech long predates Alexander Graham Bell’s telephone of 1876, as makeshift instruments such as pipes or cones were used to project a voice over greater distance. But the telephone as we know it was a more ambitious device; it ...
已浏览 13.1万 次2020年12月9日
Xfinity Internet Plans
Xfinity Home Internet : Best Plans, Pricing & Features Explained | Is it Worth it?
3:02
Xfinity Home Internet : Best Plans, Pricing & Features Explained | Is it Worth it?
YouTubeTEKZOID
已浏览 807 次3 个月之前
Xfinity Internet's New 5-Year Price Guarantee: What You Need to Know!
6:07
Xfinity Internet's New 5-Year Price Guarantee: What You Need to Know!
YouTubeMichael Saves
已浏览 4万 次4 个月之前
7 Things to Know Before You Sign Up for Xfinity Internet
6:00
7 Things to Know Before You Sign Up for Xfinity Internet
YouTubeMichael Saves
已浏览 11.5万 次2024年3月8日
热门视频
The Machines That Built America: Alexander Graham Bell’s Revolutionary Invention (S1) | History
8:53
The Machines That Built America: Alexander Graham Bell’s Revolutionary Invention (S1) | History
YouTubeHISTORY
已浏览 19.7万 次2021年8月18日
History of Telephone| Who invented it?
3:46
History of Telephone| Who invented it?
YouTubeScientific Ideas
已浏览 3352 次2023年2月27日
History of the Telephone
5:44
History of the Telephone
YouTubeLearn English by Pocket
已浏览 4.8万 次2022年4月18日
Xfinity TV Packages
Xfinity TV Prices, Packages, and Channels | Xfinity TV Review
4:36
Xfinity TV Prices, Packages, and Channels | Xfinity TV Review
YouTubeReviews.org
已浏览 8.1万 次2018年10月11日
What is Xfinity - Xfinity Review - Xfinity Pricing Plans Explained
3:19
What is Xfinity - Xfinity Review - Xfinity Pricing Plans Explained
YouTubeBusiness Guide
已浏览 8852 次2022年11月18日
Xfinity's New Live TV Plan Is Cheaper Than YouTube TV! What's the Catch?
5:22
Xfinity's New Live TV Plan Is Cheaper Than YouTube TV! What's the Catch?
YouTubeMichael Saves
已浏览 1.5万 次6 个月之前