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Did you know that...? 1. Telephone

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• The first time that a cellular system for communication was described was in a work of D.HR, of the Bell Laboratories in 1947.
• The first mobile was the Motorola DynaTAC 8000X. Weighed almost a kilo, and its dimensions are nothing like what are small phones today: it measured 33.02 x 4.455 x 8.89 centimeters. In addition, it had a screen with a red LED display that showed the number that was marked. The battery was also far from those used by phones today: it hardly lasted one hour in use or eight hours at rest. And doing a full load took 10 hours.

2. Computer

• 1936, Konrad Zuse, German engineer, design and made the Z1, which for many is the first programmable computer in history.
• The Z1 was a binary mechanical calculator operated with electricity and that occupied a whole table, quite large by the way.
• The data was received from perforated tapes, and although it did not allow a programming language as we understand it today, the Z1 was the first programmable machine in history.
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3. Headphones

• Nathaniel Baldwin, a graduate in Electrical Engineering, graduated from Stanford University, USA, in 1910 wrote a letter to the US Navy Radio Division, in which he described an invention that allowed transforming the signals of a Radio into Sound; the military asked Baldwin for a test.
• The military were amazed at the invention, described it as a wonder to be able to listen to the audio without environmental sounds interfere and the most amazing thing was that the sound was made by the radios and often made other people uncomfortable.
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4. Electric printer

• In 1950, the first electric printer for computers arrived, however, it was only able to print texts. Seven years later the printing by dot matrix was developed, but it had the same limitations as its predecessor.
• In 1959 Xerox manufactures the photocopier and for 1973 the first color photocopier, manufactured by Canon, appears.
• In 1978 the margarita printer was created, which could only write letters and numbers, but it had the quality of a typewriter.
• Finally in 1980 the laser printer appears in black and white, 8 years later they implement the color mode.
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5. Televisions

• On January 26, 1926, the Scottish engineer and inventor John Logie Baird assembled in his London lab a select audience of journalists and members of the Royal Institution of Great Britain, who were fortunate enough to attend a historic event: first public demonstration of a system capable of showing images in movement.
• The image that appeared on the screen was white and red, its size was tiny, it had a resolution of just 30 lines, the refresh rate was only 12.5 images per second and the overall quality was very low according to the standards current, but at that time was a revolution. It was the fruit of years of research and work that had been started in 1884 when Paul Gottlieb Nipkow invented and patented an explorer of the image formed by a metallic disk perforated by quadrangular holes placed in spiral that he baptized with the name of Nipkow disc .
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6. Ultra Fast Charging

• In 2013 each Chikarathat an 18 year old girl received a prize of $50,000 in an international scientific exhibition for creating a battery that can be charged in less than 30 seconds.
• This fast accumulator is a large volume condenser that can hold a lot of energy in a small space in addition to loading quickly in conserving energy for a long time in addition according to the creator the device can support 10,000 charge cycles quite compared to the one thousand cycles.
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7. Smart pillow

• Russian 7th grader created a smart pillow to fight insomnia the young inventors name is Iskamder Vega
• The pillow has a series of sensors that inform the level of noise lights and carbon dioxide directly to the computer to decide which the ideal environment to sleep.
• Optimally is the invention won the first composition of scientific projects of its country.
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8. E-Z baby saver

• Every year there were more than 38 babies that died from insolation for being inside a car without ventilation. It is a long string made out of rubber bands tied from the car's door handle to the back of the cockpit seat. It does not allow parents to leave the car while the children are still inside.
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9. Snow mobile

• In Canada people needed a means of transportation for the extreme snowy days. In 1922 a young boy started experimenting by replacing an old Ford´s wheels with some improvised ropes and skates. It later became the popular personal skimotorcycle.
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10. The Braille reading system

• Louis Braille was a blind 15-year-old boy that decided to create a reading system to have a better education and to help improve blind people´s lives. By the age of 13 he already knew a code used by soldiers that consisted of points that represented letters. After years of hard work he came out with the present Braille system.
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