Science invention
Optical phone - device that transmits sound using light
Inventor Alexander Graham Bell had high hopes for optical telephones, envisioning that wireless communications would replace the tangled network of telephone wires.
Telephone
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Topic archive
Articles about Telephone
73 published items.
History
Stockholm telephone tower: 'Heaven la earth hammock' in the heart of Stockholm, Sweden
Stockholm telephone tower: A metal structure designed to connect approximately 5,500 telephone lines in the Swedish capital.
Science story
Why can astronauts still make phone calls in the vacuum of space?
In a vacuum state, of course we wouldn't be able to breathe let alone hear and make phone calls. However, when in outer space, things will be different.
Science invention
7 inventions that help the whole world understand just how great people of color are
A multitude of extremely handy inventions these days are all made by people of color.
Life
How long can corona virus live on the phone?
As the Covid-19 pandemic continues to spread, the telephone is also one of the agents that spread the virus.
Computer science
What did a cell phone 80 years ago look like?
A film from the 1940s showing how to operate and use mobile phones far different from today.
Science invention
Unique inventions in the Rat year
The 19th century was considered the culmination of new inventions when scientists around the world repeatedly announced unique and significant landmark inventions.
Discover science
The ancient tower in the heart of the city hung over 5,500 telephone wires
Telefontornet tower, built in the 19th century in Stockholm, used to be a center for hanging bunches of cables with a total length of 5,000 km.
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Why do hotels often have phones in the bathroom?
If you travel abroad often, you may have seen a telephone (type of connection) equipped in the bathroom.
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'Heaven or hell' if one day the Internet stops working?
For many people, life without the Internet for a few hours is unimaginable. So what if one day the Internet stops working? Its implications are things that you never wan…
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We are exposed daily to these radioactive sources
You will be surprised because the familiar items around you contain radiation. Accordingly, each year our body receives radiation equivalent to 600 mrem / year.
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Life cycle of a mobile phone
The journey of a mobile phone from the moment it was born until it was thrown away by the user.
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The development of technology over time
Let's review the process of technology in 7 basic areas for 200 years with Infographic below.
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Things to know about using electronic devices on aircraft
In some countries, you can use electronic devices during take-off and landing of aircraft.
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How much does it cost to
Scientists at the Marist University's Institute of Public Research - conducted a telephone survey with 1,235 people across the United States to find out how much a famil…