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Transatlantic Telecommunication Via Voice

Transatlantic Telecommunication Via Voice

Harald Sack
On September 25, 1956,  the world’s first submarine transatlantic cable for telephony TAT-1 (Transatlantic No. 1) was inaugurated. It was laid between Gallanach Bay, near Oban, Scotland and Clarenville, Newfoundland between 1955 and 1956 by the cable ship Monarch. You might wonder how it was possible to route a call between Europe and the United States before the mid 1950s, well at least by cable. Don’t you at least remember some old…
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communication
What a Brick! – The World’s First Cell Phone

What a Brick! – The World’s First Cell Phone

Harald Sack
On September 21, 1983, the Motorola DynaTAC, the world‘s first commercially available cell phone received its FCC certification. DynaTAC was an abbreviation of Dynamic Adaptive Total Area Coverage. But, with a price of $3,995 in 1983 ($9,322 in present-day terms) it was a rather expensive while also exclusive gadget. But, it was not the first mobile phone at all. Actually, in Germany, the Deutsche Reichsbahn (German Railways) already started experimenting with a…
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computer science
Scott Fahlman and the Origin of the Emoticons :-)

Scott Fahlman and the Origin of the Emoticons :-)

Harald Sack
On September 19, 1982, Scott Fahlman posted the first documented emoticons 🙂 and 🙁 on the Carnegie Mellon University Bulletin Board System. As SMS and the Internet became widespread in the late 1990s, emoticons became increasingly popular and were commonly used on text messages, internet forums and e-mails. Emoticons have played a significant role in communication through technology. “I often think there should exist a special typographical sign for a smile —…
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computer science
Linux at the Core of the Open Source Revolution

Linux at the Core of the Open Source Revolution

Harald Sack
On September 17, 1991, the Finnish student of computer science Linus Torvalds, uploaded Linux kernel version 0.01 to the ftp server ftp.funet.fi. This might be considered as the date of birth of the famous free operating system Linux, although Torvalds announced the new OS a few weeks earlier on usenet already. Nevertheless, Linux has become one of the most popular operating systems today, and this of course with a god reason…. I…
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engineering
The Opening of the Panama Canal

The Opening of the Panama Canal

Harald Sack
On August 15, 1914, the very first ship, the cargo ship SS Ancon passed the newly built Panama Canal. Unfortunately, in the same month, World War I started fighting in Europe and the official opening ceremony had to be postponed until 1920. Connecting Atlantic and Pacific The Panama Canal is an 82 km long ship canal in Panama that connects the Atlantic Ocean (via the Caribbean Sea) to the Pacific Ocean and therefore…
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computer science
IBM and the Success Story of the Personal Computer

IBM and the Success Story of the Personal Computer

Harald Sack
On August 12, 1981, IBM presented the IBM 5150, the very first IBM personal computer, commonly known as the IBM PC, is the original version and progenitor of the IBM PC compatible hardware platform. It was created by a team of engineers and designers under the direction of Philip Donald Estridge of the IBM Entry Systems Division in Boca Raton, Florida. Actually, it were his decisions that dramatically changed the computer industry,…
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women in technology
On the Road with Bertha Benz

On the Road with Bertha Benz

Harald Sack
On August 5, 1888, Bertha Benz, without her husband, engineer and inventor Karl Benz, knowing about it, took her two sons on the first long distance car-trip ever performed. In doing so, she brought the Benz Patent-Motorwagen worldwide attention and got the newly founded car company its first sales. How to do Marketing for the Newly Invented Vehicle? Bertha Benz was the daughter of the master carpenter Karl Friedrich Ringer. Before Bertha…
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space
The Eagle has Landed – The First Man on the Moon

The Eagle has Landed – The First Man on the Moon

Harald Sack
On July 20, 1969 (for Western Europeans it was one day later, i.e. July 21, 3:56 MEZ) United States‘ space mission Apollo 11 reached the moon with the lunar module Eagle and the two astronauts Neil Armstrong [2] and Edwin “Buzz” Aldrin about 76 hours after they left earth from Kennedy Space Center in Florida., while Michael Collins stayed in orbit around the Moon piloting the command module.[4] “Houston, Tranquility Base here. The Eagle has landed.” (Neil Armstrong)…
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communication
Mary Had a Little Lamb – Edison and the Phonograph

Mary Had a Little Lamb – Edison and the Phonograph

Harald Sack
On July 18, 1877 Thomas A. Edison conceived the first idea for his phonograph, the very first mechanical tool for recording and reproducing (replaying) sound. The phonograph also was the invention that first gained him public notice. Only a Byproduct Actually, the phonograph was intended as a byproduct of Edison’s efforts to “play back” recorded telegraph messages and to automate speech sounds for transmission by telephone. The recordings of the first phonograph…
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physics
The misjudged Math Teacher – Georg Simon Ohm

The misjudged Math Teacher – Georg Simon Ohm

Harald Sack
On July 6, 1854, the Bavarian physicist and mathematician Georg Simon Ohm passed away, he was best known for his research on electricity and it was him to initiate the subject of circuit theory. The SI unit of electrical resistance and Ohm’s law are named after this Bavarian ‘teacher’. “The design of this Memoir is to deduce strictly from a few principles, obtained chiefly by experiment, the rationale of those electrical phenomena which are produced…
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