Who Invented the Telegraph?

Who Invented the Telegraph?...

It was Samuel Morse’s demo of an electric telegraph in 1838 that popularized the machine. The history of the telegraph began years before Morse’s invention, but it was his invention that was able to send messages in a consistent manner. The Beginnings of the Telegraph In 1794, Claude Chappe came up with a non electric telegraph. Chappe’s invention employed a semaphore and flag based alphabets. It also required line of sight. The first electrochemical telegraph was invented in 1808 in Bavaria. Samuel Soemmering employed 35 wires together with gold electrodes immersed in water. The messages could be sent a few thousand feet away. In the United States, the first telegraph prototype to be developed was courtesy of Harrison Dyar. His invention used chemically treated paper to make dots. The chemically treated paper allowed him to relay the electric sparks. William Sturgeon’s Electromagnet The history of the telegraph changed when the British inventor William Sturgeon created the electromagnet in 1825. He first showed how the device could lift heavy objects. Sturgeon used a 7 ounce iron enfolded by wires and a battery cell. It would also form the basis for future telegraphs. The Electric Telegraph Emerges In 1830, American inventor Joseph Henry (1797-1878) displayed the electromagnet’s potential. He sent an electric current over a mile long wire. This turned on an electromagnet that set off a bell. Using the same principles, British physicists Charles Wheatstone and William Cooke unveiled the Cooke and Whetstone telegraph a few years later. But while these early telegraphs were workable, it was Samuel Morse (1791-1872) who was able to utilize the electromagnet most successfully. He was able to combine it with Joseph Henry’s machine which no else could do. This would alter the history of...
Who Invented the Radio?

Who Invented the Radio?

While the inventors of other devices and technologies are easy to pinpoint and identify, it is unfortunately not the case for the humble radio. This is because no individual can lay sole claim to the invention of the radio as it is a device that has been developed over time until it reached its final form today. So answering the question “Who invented the radio?” will not be a simple task as it will require a bit of a history lesson since the development of the radio by the numerous individuals involved with it spanned across decades. Each of the scientists and inventors that will be discussed are all commonly referred to as an inventor of the radio because of the breadth and depth of their pioneering work on radio technology. If being widely-regarded will be the main criteria, the answer to the question “Who invented the radio?” will be Gugliemo Marconi. Credited for making the first radio signal across the Atlantic Ocean in 1902, Marconi also showed the practicability of utilizing the capabilities of radio communication. He later won the Nobel Prize for his work on radio technology. If, on the other hand, being first is the main criteria, then the name of Sir Oliver Lodge will be the answer to the question “Who invented the radio?” This is because Lodge has the distinction for being the first human to send a radio signal using his coherer, a radio device which he developed into perfection. Heinrich Hertz can also be another name that can be supplied to answer the question “Who invented the radio?” This is because of his important work on radio, which proved the existence of electromagnetic waves, made possible the construction of systems that transmit...
Who Invented the Laser?

Who Invented the Laser?

It was in 1960 when Theodore Maiman first showed the optical laser at work. However, the development and history of laser began in the early 1900s with Albert Einstein. Einstein’s Theory Laser is an acronym for Light Amplification by the Stimulated Emission of Radiation. Basically it is a device that produces light by way of stimulated emission. It was Albert Einstein who postulated the theory of stimulated emissions back in 1917. What Einstein said was this: it’s possible to construct light rays that release energy. By making light rays with the proper frequency, it could be directed at atoms and produce energy. The Maser In 1958, Charles Townes and Arthur Schawlow developed the maser (short for microwave amplification by stimulated emission of radiation). It wasn’t laser, but its development was crucial in the history of laser. The maser would be used to strengthen radio signals and used in space research as well. The First Lasers Two years later in 1960, Theodore Maiman created the ruby laser. However Gordon Gould was the first person to actually use the word laser. Gould was working with Dr. Townes when he mentioned the word laser in 1957. There are reports he had already invented the optical laser in 1957 but failed to patent it. It wasn’t until 1977 that Gould got his patent for the laser. However it remains that Maiman was the first to show a working laser. In 1960 Ali Javan invented the gas laser. It was the first in the history of laser to actually change electrical energy into laser. This was followed by Robert Hall’s invention of semiconductor laser in 1962. Two years later Kumar Patel developed the carbon dioxide laser, and this was followed by Hal Walker’s invention...
Who Invented Ink?

Who Invented Ink?

For years man had been carving into clay, stone, or wood to write a record of his life and experiences. But when ink and paper came, it revolutionized writing for all time. They are still in use today. Thus, it’s interesting to know who invented ink. Egyptians or Chinese? Many say it was the Egyptians who invented ink. They also say paper was invented by an Egyptian, because “paper” comes from the word “papyrus” which grew abundantly in the Nile region. But recorded history shows that both writing implements—paper and ink—were invented by Chinese men. The paper inventor was T’sai-Lun and the ink inventor was Tien-Lcheu. Egyptians are often deemed the first users of ink. And that an Egyptian was who invented ink. This is because of the common notion that paper was invented by an Egyptian. True, papyrus was in wide use in Egypt for writing in early times. But they used stylus to carve figures on papyrus instead of black ink. Stylus is a pointed thin rod. Ink was first applied using a brush made of bird’s feather. With this invention, the ink inventor simplified writing and made it so convenient. From Gelatin and Oil He probably got tired of having his hand and fingers denting out marks on wood, stone, or papyrus. In 2607 B.C., Tien, a great thinker being a philosopher, simplified writing. He formulated a dark liquid for marking on stones and papers. He took soot from pine wood then mixed this with oil used in lamps. Tien made gelatin out of the skin of a donkey and musk. He mixed this with the soot and oil. Innovations By 1200 B.C. this black liquid writing implement became popular and other people developed it further...
Who Invented the Fire Alarm?

Who Invented the Fire Alarm?...

The use of a fire alarm is far and wide. It is known to be a good device for detecting fire and some of the atmospheric changes in the air such as the sudden presence of smoke. Most businesses and also households use this to their advantage. With all these things, you probably think that everyone should know who invented the fire alarm. However, that is not the case. Not everyone really knows who invented the fire alarm let alone is actually interested to know when and where it all started. The Past Accounts of the Fire Alarm It was written in history that a man named Francis Robbins Upton invented the first fire alarm product. This was in the year 1890. However, it wasn’t promoted in the market during that time. In 1969, the device invented by Upton was then initially premiered in the market for commercial use. The Further Promulgation of Fire Alarms in American Soil It was years after that first invention had finally entered the United States. Currently, it is interesting to note that there are so many fire alarms installed around the country. According to reports, about ninety percent of American households have installed fire alarms for their use. These modern versions have a test button included to let the bearer check the effectivity of the alarm. The Safety System Offered by Fire Alarms Many households use this because of its complete security system offered. While it provides protection for fire or smoke accumulation, it also acts as a protection system against burglars. Aside from the households, these can also be seen in many other establishments such as schools, churches, and businesses. The Other Features of Fire Alarms When in use, the sound it...
Who Invented the Hydrogen Bomb?

Who Invented the Hydrogen Bomb?...

Portions of the development and history of the hydrogen bomb remain classified. But it is public knowledge that its chief architect was Dr. Edward Teller. The first H bomb (or thermonuclear bomb / fusion bomb) detonated was on November 1 1952 in Enewetak in the Marshall Islands. The Teller Ulam Design The hydrogen bomb is also called the Teller-Ulam design, after Edward Teller and Stanislaw Ulam who helped in the project too. Unlike other scientists who worked on the Manhattan Project, Teller continued his work on producing nuclear weapons. The idea for the hydrogen bomb was broached to Teller by his colleague Enrico Fermi in 1941. Teller was assigned to the Manhattan Project. But his preoccupation with the hydrogen bomb led to a falling out of sorts with Dr. Oppenheimer who was working on the atomic bomb. Hydrogen Bomb Tests The history of the hydrogen bomb shows Teller continued the work with Ulam after the Manhattan Project. After some initial difficulties, a small test was conducted in 1951. It was a success and another one was scheduled in 1952. The precise location was the Enewetak Atoll. The blast produced an explosion equivalent to 10 megatons. It was almost 500 times more powerful than the bomb dropped in Nagasaki. The bomb was nicknamed Sausage and weighed over 80 tons. In 1954 another hydrogen bomb (code named Shrimp) was detonated. It released a force of 15 megatons. It was the biggest one the US had ever detonated. The succeeding stages in the history of the hydrogen bomb in the US were centered on reducing its size. The goal was to fit it in missiles that could be carried by submarines. By the 1960s, megaton warheads were only a few hundred pounds...
Page 6 of 10« First...45678...Last »