Sunday, June 28, 2009

2008 APTERA ELECTRIC CAR

You don't see many of these cars out in the market, or even in the streets just yet, but i have a feeling that it will be a very popular car very soon. It has already been placed in the market in California; before you know it, it'll be the most popular, inexpensive and efficient car. This new technological invention of 2008, is just amazing and is said to be between the price range of 20 to 25 thousand dollars.It is a three wheeled car reportedly gets 230MPG, it also has a cruising speed of 55MPH. Click the link below to watch a brief video of this new trendy car! I think you'll be as stunned as I was.

Friday, June 26, 2009

Microchip- Energy Consumption



"Researchers at the Massachusetts Institute of Technology (MIT) and Texas Instruments Company have discovered a way to significantly decrease microchip energy consumption to one tenth of the current rates. This reduction in power consumption translates into longer battery life for portable devices, such as mobile phones and hand held computers, and may enable devices to operate on electricity produced using relatively low power sources, such as body heat or movement".

Click the link below to read the full article.
http://thefutureofthings.com/news/1149/mit-team-develops-energy-efficient-microchip.html




Wednesday, June 24, 2009

The Present Technology


I hope you all enjoyed this past portion of our technology research. Now we will post a massive ammount of blogs, researched by us, The Sparks, as we post more pictures, videos and articles of this present technology.
Amazaing how far technology has come, what it has done to our world and how it has affected our society in EVERY way! We hope you will enjoy this present portion of our blog as much as you enjoyed our past portion
!

Toilets Through Time


The toilet is an invention that most of us could not live without. Imagine going back to the middle ages and using a chamber pot to relieve yourself and then dumping it into the streets when you filled the pot. Eww! The toilet was invented by Sir John Harrington for Queen Elizabeth I in 1596. It was a rudimentary design that has advanced greatly through the ages. In 1775 Alexander Cummings was given the first patent for the flushing toilet. The toilet really took off in the 1800's when people realized that poor sanitary conditions were causing many health and environmental problems. The Tremont Hotel of Boston was the first hotel to have indoor plumbing and eight water closets. This was tremendous seeing as only the wealthy could afford indoor plumbing. By 1910 the toilet was changed from the elevated water tank to the closed tank and bowl that we all know and love.




Car Safety


Airbags have become a requirement for all newer cars but this wasn't always the case. In simple terms the airbag is a gas-inflated cushion built into the steering wheel, dashboard, door, roof, or seat of a car that uses a crash sensor to trigger the release and expansion of the bag to protech you from the impact of an accident. Allen Breed was a major player in airbag technology. He was the patent holder to the only crash sensing technology available at the birth of the airbag industry in 1968. Early airbag patents go back to the early 1950s yet they couldn't seem to take off until Breed's "sensor and safety system" was introduced. In 1971, the Ford car company built an experimental airbag fleet and in 1973 GM tested airbags on the 1973 Chevrolet model. The Oldsmobile Toronado was the first car with a passanger airbag intended for sale to the public. From this point on airbags became an option for most cars and in 1998 became mandatory.


Firearms in China


Firearms are an important piece of machinery to most Americans. Throughout history guns have been a major part of warfare and day to day life. But where did they start? The first direct ancestor of the firearm is the fire-lance created by the Chinese. It was a tube filled with gunpowder and sometimes shrapnel, and attached to the end of a spear. This "gun" was used as a flamethrower during the siege of De'an in 1132. From this first gun improvements and adjustments were made as it traveled through the Middle East and finally landed in the West. Over the years they have changed shape and been improved yet the general idea has remained the same.

The First Steam Engine


Steam engines are a technological advancement that has made our lives indeffinately easier and it all started with one man. In 1698, Thomas Savery patented the first steam engine. He had been working on the problem of removing water out of coal mines. Savery's machine was a closed vessel filled with water into which steam under pressure was introduced. The steam forced that water upward and out of the mine shaft, and then a cold water sprinkler was introduced to condense the steam. This process created a vacuum which sucked more water out of the mine shaft through a bottom valve. This invention revolutionized the modern world with the introduction of the first locomotive and later the steam boat.

http://inventors.about.com/library/inventors/blsteamengine.htm

Sunday, June 21, 2009

The Hindenburg Disaster "Oh the humanity"


Click on this link to watch and hear dramatic coverage of the Hindenburg crash:
The Hindenburg disaster in 1937 at Lakehurst Naval Air Station in Lakehurst New Jersey was a turning point in history for passenger travel and flight. The Hindenburg was one of the largest rigid framed luxury airships produced. It carried passengers across the ocean at 80 mph, much faster than traditional ocean liners. This marvel of technological engineering had 20 successful crossings of the North and South Atlantic Ocean before the horrific crash that etched its name in history.
The German -made Hindenburg was a sister ship to the Graf Zeppelin that had logged over one million safe flight miles. The company boasted that not one person had ever been injured while flying in a Zeppelin. Other U.S. and British Dirigibles (smaller blimps) had accidents mostly due to weather conditions.
Many theories were proposed to explain the reasons for the Hindenburg’s fiery crash (1). It is generally agreed that a spark from static electricity or lightning ignited the hydrogen gas on board and perpetuated the fireball that ensued. Other technology of the era including the use of highly flammable paint and the Hindenburg’s chemically treated cotton fabric skin contributed to the raging fire that consumed the airship in less than 37 seconds (1, 2).
The crash of the Hindenburg had a dramatic impact on society and the future of airship travel. Thirty -six people including thirteen passengers, twenty-two crew members and one ground crew member lost their lives in the fiery inferno. The dramatic motion pictures and newscaster Herbert Morrison’s moving recording of the crash destroyed the public’s trust in this type of air travel technology (1). Giant, hydrogen –filled passenger airships were no longer used to transport air passengers. The movie technology and recording artist’s vivid documentation of the tragic Hindenburg crash have captured and preserved this horrific, historic event for viewing by future generations (3).

Saturday, June 20, 2009

Effective But Potentially Deadly Safety Device


Not all technological developments for safety purposes are safe. A popular but potentially deadly fire extinguisher of the past was the Carbon tetrachloride (CTC) extinguisher. The CTC extinguisher was used primarily for flammable liquids and electrical fires. There were two methods to apply CTC to a fire; a pressurized brass or chrome canister or a round glass bottle, commonly known as a “CTC bomb”. The brass or chrome canister was pressurized by a hand pump mounted in the canister which pushed the CTC out of a hose toward a fire. The rounded glass bottle or “bomb” was thrown into a fire. The glass would break dispersing the CTC into the flames to extinguish the fire. The “CTC bomb” was also available as an automatic extinguisher. The ball of CTC was suspended from the ceiling or wall on a chain which had a fusible link. When the fusible link melted from the heat of a fire, the glass ball would drop and break, dispersing the CTC into the fire area.
These CTC extinguishers were a bomb in more than one sense. Carbon tetrachloride displaced oxygen that the fire needed to burn thus extinguishing the flames. The fumes were very toxic when heated or burned. A person in an enclosed area could be asphyxiated or overcome by the toxic fumes, and die. Despite the hazards of CTC, these extinguishers were very popular and were in use from 1912 until 1969, when its sale and use was banned. There are still some of these old extinguishers in dusty, dark confines of basements and store rooms. If you find one of these old extinguishers, don’t touch it. The integrity of the container could be questionable and could release CTC product. Contact your local fire officials for proper disposal of old extinguishers. Remember, please don’t attempt to fight a fire with a CTC extinguisher, you may extinguish more than the fire.


http://en.wikipedia.org/wiki/Fire_extinguisher

http://blog.modernmechanix.com/2008/01/31/catapulted-bomb-puts-out-fire/

Friday, June 19, 2009

Safety Fuel Cells in NASCAR


Safety fuel cells became mandatory in NASCAR racing due to an accident and fire that occurred during the 1964 World 600 race in Charlotte, NC. The driver, Fireball Roberts, died from complications of burns after his race car burst into flames when the stock fuel tank ruptured following an accident.

A safety fuel cell consists of a rugged outer metal shell, rigidly attached to the frame of the race car, with sturdy wide metal straps. Lining the inside of the metal shell is a gasoline resistant rubber bladder. A metal fill plate that is bolted to the top of the fuel cell has a large fill pipe and vent pipe to allow quick refuels during pit stops. The fill and vent pipes have a check ball in each tube that would close and keep the fuel contained in the fuel cell if a rollover were to occur. A special foam inside the rubber bladder keeps fuel from sloshing around inside the fuel cell, that could possibly upset the balance of the race car during high speed turns. If the outer shell were to be damaged during a crash the rubber bladder would keep the fuel contained, reducing the risk of a large fire.

The First Microwave


Imagine your life without a microwave. Scary thought isn't it. Well if it weren't for Dr. Percy Spencer, we would have a much harder time cooking just about anything. In 1946 while testing the magnetron, a new vacuum tube, Dr. Spencer noticed something odd. The candy bar in his pocket had melted. Intrigued he placed popcorn kernels next to the tube. He stood back and watched as the kernels began to pop and fly all over his lab. He began experimenting with different foods near the vacuum and noticed the same phenomena. Over the next few weeks he fashioned the boxed in look of our microwaves and trapped the microwave power, creating a high density electromagnetic field. He discovered that by placing food in the box he could raise the temperature of the food inside thus revolutionizing cooking!

Wednesday, June 17, 2009

Lie Detectors


Cesare Lombroso, in 1895, was the first to utilize such an instrument, but it was not until 1914 and 1915 that Vittorio Benussi, Harold Burtt, and, above all, William Marston produced devices establishing correlation of blood pressure and respiratory changes with lying. In 1921 an instrument capable of continuously recording blood pressure, respiration, and pulse rate was devised by John Larson. This was followed by the polygraph (1926) of Leonarde Keeler, a refinement of earlier devices, and by the psychogalvanometer (1936) of Walter Summers, a machine that measures electrical changes on the skin. A more recent innovation is a device, developed in 1970, called the psychological stress evaluator, which measures voice frequencies from tape recordings. Although the lie detector is used in police work, the similarity of physical changes caused by emotional factors such as feelings of guilt to those caused by lies has made its evidence for the most part legally unacceptable. An assessment of such devices by National Research Council (an arm of the National Academy of Sciences ) found that they also were too unreliable to be used in screening for national security purposes, but they are widely used for such purposes nonetheless, sometimes with inconsistent results from one government agency to another. The use of lie detectors to screen employees and job applicants is highly controversial.

"lie detector." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 17 Jun. 2009 <http://www.encyclopedia.com/>.

History of 20th Century Dentistry


Innovations in Dental Techniques and Technology—The 20th Century
A soldier awaits dental work out in the field soon after the U.S. Army Dental Corps was established in 1911.
1900—Fifty-seven dental schools exist by this year.
1900—Federation Dentaire Internationale (FDI) is formed.
1903—Charles Land devises the porcelain jacket crown.
1905—Alfred Einhorn, a German chemist, formulates the local anesthetic procain, later marketed under the trade name Novocain.
1907—William Taggart invents a “lost wax” casting machine, allowing dentists to make precision cast fillings.
1908—Greene Vardiman Black, the leading reformer and educator of American dentistry, publishes his monumental two-volume treatise Operative Dentistry, which remains the essential clinical dental text for fifty years. Black later develops techniques for filling teeth, standardizes operative procedures and instrumentation, develops an improved amalgam, and pioneers the use of visual aids for teaching dentistry.
1910—The first formal training program for dental nurses is established at the Ohio College of Dental Surgery by Cyrus M. Wright. The program is discontinued in 1914 mainly due to opposition by Ohio dentists.
1911—The U.S. Army Dental Corps is established as the first armed services dental corps in the U.S. The Navy institutes its Dental Corps in 1912.
1913—Alfred C. Fones opens the Fones Clinic For Dental Hygienists in Bridgeport, Connecticut, the world’s first oral hygiene school. Most of the twenty—seven women graduates of the first class are employed by the Bridgeport Board of Education to clean the teeth of school children. The greatly reduced incidence of caries among these children gives impetus to the dental hygienist movement. Dr. Fones, first to use the term “dental hygienist,” becomes known as the Father of Dental Hygiene.
1917—Irene Newman receives the world’s first dental hygiene license in Connecticut.
1923—American Association of Dental Schools is established.
1924—American Dental Assistants Association is founded by Juliette Southard and her female colleagues. Female dental assistants were first hired in the 19th century when “Lady in Attendance” signs were routinely seen in the windows of dental offices. Their duties included chair-side assistance, instrument cleaning, inventory, appointments, bookkeeping, and reception.
1926—The Carnegie Foundation-sponsored Gies Report, the first comprehensive report on the state of dental education, is published and has an immediate impact on the dental profession.
1928—National Board of Dental Examiners is established.
1930—The American Board of Orthodontics, the world’s first dental specialty board, is founded.
1930–1943—Frederick S. McKay, a Colorado dentist, is convinced that brown stains (mottling) on his patients’ teeth are related to their water supply. McKay’s research verifies that drinking water with high levels of naturally occurring fluoride is associated with low dental caries and a high degree of mottled enamel. By the early 1940s, H. Trendley Dean determines the ideal level of fluoride in drinking water to substantially reduce decay without mottling.
1933—The first National Board dental examinations are conducted. 83 candidates are examined in 4 cities.
1938—The nylon toothbrush, the first made with synthetic bristles, appears on the market.
1937—Alvin Strock inserts the first Vitallium dental screw implant. Vitallium, the first successful biocompatible implant metal, had been developed a year earlier by Charles Venable, an orthopedic surgeon.
1940s—22,000 dentists serve in World War II.
1945—The water fluoridation era begins when the cities of Newburgh, New York, and Grand Rapids, Michigan, add sodium fluoride to their public water systems.
1948—President Harry S. Truman signs the Congressional bill formally establishing the National Institute of Dental Research and initiating federal funding for dental research. The name changes to National Institute of Dental and Craniofacial Research (NIDCR) in 1998.
1950s—The first fluoride toothpastes are marketed.
1949—Oskar Hagger, a Swiss chemist, develops the first system of bonding acrylic resin to dentin.
1955—Michael Buonocore describes the acid etch technique, a simple method of increasing the adhesion of acrylic fillings to enamel.
1957—John Borden introduces a high-speed air-driven contra-angle handpiece. The Airotor obtains speeds up to 300,000 rotations per minute and is an immediate commercial success, launching a new era of high-speed dentistry.
1957 —The Social Security Act is amended to include self-employed dentists.
1958—A fully reclining dental chair is introduced.
1960s—Sit down, four-handed dentistry becomes popular in the U.S. This technique improves productivity and shortens treatment time.
1960s—Lasers are developed and approved for soft tissue procedures.
1960—The first commercial electric toothbrush, developed in Switzerland after World War II, is introduced in the United States. A cordless, rechargeable model follows in 1961.
1962—Rafael Bowen develops Bis-GMA, the thermoset resin complex used in most modern composite resin restorative materials.
1980s—Per-Ingvar Branemark describes techniques for the osseointegration of dental implants.
1989—The first commercial home tooth bleaching product is marketed.
1990s—New tooth-colored restorative materials plus increased usage of bleaching, veneers, and implants inaugurate an era of esthetic dentistry.
1997—FDA approves the erbium YAG laser, the first for use on dentin, to treat tooth decay.

Tuesday, June 16, 2009

The First Ever Computer Mouse

Check this out:
http://news.bbc.co.uk/1/hi/technology/7772376.stm

Dr Engelbart introduced the first ever computer mouse on December 9th 1968 while he was demonstrating different ways of working with computers! Its funny to see something that was just created 40 years ago and now today in 2009 not used that much anymore, due to laptops.

The First Dishwasher


The First Ever Dishwasher was created by Josephine Cochran in Shelbyville, Illinois in 1886. She was tired of her servants cracking her China so she decided to create the Dishwasher to do the dishes instead! She designed the dishwasher in her wooden shed there were wire holders for plates, cups or saucers which were then placed in a copper boiler. A motor turned the barrel as the hot soapy water splashed and cleaned the dishes. She was founded by a firm who eventually led her to Kitchen Aid and her updated machine was given plumbing in the late 1920's and drying elements in the 1940's. In the 1970's the dishwasher became a common household appliance. Today dishwashers are used all over the world and we have Mrs.Cochran to thank for not having to hand wash piles of dishes!

http://www.nzherald.co.nz/technology/news/article.cfm?c_id=5&objectid=10363799

Saturday, June 13, 2009

The First CellPhone




Today you will not find many people who do not have cell phones, but before 1973 there were not any! Martin Cooper who is nick named the "father of the mobile phone". Martin was the CEO and the founder of a company called Array Comm, this company worked on researching smart antenna technology and improving wireless networks. Also, he was the corporate director for Motorola! Cooper is named the inventor of the first handheld cell phone and the first person to make a call on a handheld cellphone on April 23rd, 1973. It was that phone call that Cooper had made to Dr Joel S. Engel begin a fundamental technology and communications market shift toward making people be able to make a phone call to a person instead of just to a place. What would we do without Martin Cooper; nowadays you rarely here of people who do not own a cellphone. Also technology has definitely changed since the first cell phone because the cellphones today look nothing like the ones back in 1973!

http://en.wikipedia.org/wiki/Cooper's_Law

Friday, June 12, 2009

SPAD S.XIII – WWI Fighter Plane




Equipped with twin machine guns and a larger engine, the SPAD XIII was based upon the airframe of the smaller SPAD VII. Built in large numbers, it was fast and powerful but difficult to fly. The SPAD XIII was flown by many of the famous aces including Georges Guynemer and Eddie Rickenbacker. Guynemer's last victory was also the first victory scored by a SPAD XIII. With 18 victories, Irish ace William Kennedy-Cochran-Patrick scored more victories with the SPAD VII and SPAD XIII than any other ace.







Tuesday, June 9, 2009

Our First Thermometers

What is a Thermometer? "Thermometers measure temperature, by using materials that change in some way when they are heated or cooled. In a mercury or alcohol thermometer the liquid expands as it is heated and contracts when it is cooled, so the length of the liquid column is longer or shorter depending on the temperature. Modern thermometers are calibrated in standard temperature units such as Fahrenheit or Celsius."




Early History of Thermometers: The first thermometers were called thermoscopes and while several inventors invented a version of the thermoscope at the same time, Italian inventor Santorio Santorio was the first inventor to put a numerical scale on the instrument. Galileo Galilei invented a rudimentary water thermometer in 1593 which, for the first time, allowed temperature variations to be measured. In 1714, Gabriel Fahrenheit invented the first mercury thermometer, the modern thermometer.



The Farenheight & Celsius Scales: Daniel Gabriel Fahrenheit (1686-1736) was the German physicist who invented the alcohol thermometer in 1709, and the mercury thermometer in 1714. In 1724, he introduced the temperature scale that bears his name - Fahrenheit Scale. -AND- The Celsius temperature scale is also referred to as the "centigrade" scale. Centigrade means "consisting of or divided into 100 degrees". The Celsius scale, invented by Swedish Astronomer Anders Celsius (1701-1744), has 100 degrees between the freezing point (0 C) and boiling point (100 C) of pure water at sea level air pressure. The term "Celsius" was adopted in 1948 by an international conference on weights and measures.














1920's Hair Dryers




Can you beleive that the first hair dryer was the VACUM CLEANER?! Around the turn of the century, women dried their hair by connecting a hose to the exhaust of their vacuum cleaners. In early models, the front of a vacuum cleaner sucked air in, the back blew air out, and the hose could be attached to either end.
In 1920, the first true hair dryer came on the market, but it was extremely large and heavy, and frequently overheated. Since then, thousands of patents have been issued for different hair dryer designs, but most of them only tweak the outside packaging of the hairdryer so that it looks more aesthetically appealing to you. Aside from the addition of some safety features, the inside of a hair dryer hasn't changed too much over the years. Not until 1951 was the first really workable dryer made. The device consisted of a hand-held dryer connected to a pink plastic bonnet fitted over the woman’s head.









You can always visit http://www.allenisd.org/facstaff2.nsf/Pages/3465526C7D5B41E48625706F00595D05
for a fuller understanding of the way these hair dryers worked!

Our First "Wireless Technology"





"On a winter's night in 1894, a 20-year-old Italian inventor named Guglielmo Marconi invited his mother into his attic workshop. Leading her to a table, he pressed a switch connected to an elaborate apparatus that produced a spark and a snapping sound. Instantly a bell sounded across the room. Marconi had linked the switch to the distant bell, but by sending a wireless signal through the air. The technology was primitive by modern standards but also strangely precocious. More than a century after the first "spark gap" transmitters crackled into life, wireless technology is returning to its roots. The latest ultrawideband wireless devices, which are just starting to appear on the market, have much in common with the very first transmitters. History is repeating itself."








You may read the whole article at:

http://beta.technologyreview.com/computing/14074/

Or if you wish to watch a brief histori of Guglielmo Marconi at:

http://www.youtube.com/watch?v=ZcgzuDdlZUA&feature=related

Sunday, June 7, 2009

The First X Ray

The First X-Ray



Wilhelm Conrad Rontgen accidentally discovered an image cast from his cathode ray generator on November 8th 1895! After investigations it showed that the rays were generated at the point of contact of the cathode ray beam on the inside of the vacuum tube an d not deflected by magnetic fields, and they penetrated many kinds of matter.




One week after Wilhelm made the discovery he took an X ray of his wife’s hand and it clearly showed her wedding ring and all of the bones in her hand! The photo immediately caught the attention of scientists and this new form of radiation. Wilhelm named this new form of radiation X-Radiation with the X meaning the “unknown”. Imagine if Wilhelm never discovered this how would we be able to tell if someone broke a bone?

http://inventors.about.com/library/inventors/blxray.htm

Saturday, June 6, 2009

The History of TV

1923 - Charles F. Jenkins on June 14 made his first experimental wireless television transmissions with a mechanical system from the Navy radio station in Anacostia to his Jenkins Laboratories office in Washington D.C.; Vladimir K. Zworykin applied for a patent on his iconoscope cathode ray tube.

1924 - John Logie Baird used a Nipkow disc to make experimental transmissions in London; he made his first public demonstration March 25, 1925, at the Selfridges department store on Oxford Street.

1925 - June 13 Jenkins made his "first public demonstration of radiovision" with 48 lines per inch and synchronized sound over a 5-mile distance from Anacostia to Washington DC to members of the Navy and Commerce Department. He would begin broadcasting on his first TV station W3xk five nights per week in July 1928.

1926 - In January, John Logie Baird in London made a second demonstration at the Selfridges department store on Oxford Street, and began operation of a 30-line TV system at 5 frames per second.

1927 - Jan. 7 Philo T. Farnsworth applied for his patent on the image dissector tube that used cesium to reproduce images electronically. On April 7, AT&T transmitted a long distance television image of Herbert Hoover from its experimental station 3XN in Whippany NJ using a 185-line system developed by Herbert E. Ives; also, Edna Mae Horner, an operator at the Chesapeake and Potomac Telephone Company, assisted the transmission of Hoover and became the first woman to appear on U.S. television. On Sept. 7, Farnsworth transmitted his first successful electronic TV images in San Francisco.

1928 - May 11 GE began regular TV broadcasting with a 24-line system from a station that would become WGY in Schenectady NY; by the end of the year, over 15 stations were licensed for TV broadcasting; Dr. Ernest Alexanderson developed the Octagon mechanical TV set with three-inch screen that was manufactured and sold by GE for home use. In Germany, Denes von Mihaly demonstrated a mechanical 30-line system called Telehor with a picture rate of 10 frames per second at the Berlin Radio Show.

1929 - June 27 Herbert E. Ives demonstrated a mechanical color TV system of 50-lines from AT&T in NY to Washington DC; Zworykin demonstrated Nov. 18 his 120-line system of electronic television with its Kinescope tube at 24 frames per second.

1928 - May 11 GE began regular TV broadcasting with a 24-line system from a station that would become WGY in Schenectady NY; by the end of the year, over 15 stations were licensed for TV broadcasting; William S. Paley in September took over the failing United Independent Broadcasters network with its 16 affiliate stations and reorganized it as the Columbia Broadcasting System (CBS) for radio broadcasting.


1929 - The BBC began test television broadcasting for 30 minutes per day using the 30-line mechanical system of John Baird.

1931 - July 21 CBS began regular TV broadcasting of 28 hours per week on W2XAB in NY


1932 - Aug. 22 the BBC began regular broadcasting using Baird's 30-line system until Nov. 2, 1936, when it changed to an electronic 405-line system.


1934 - RCA had improved Zworykin's electronic system to 343 lines of resolution at 60 cycles with 30 interlaced fields reducing flicker.



1936 - June 15 the Don Lee Broadcasting network in California exhibited an electronic television system developed by the network's director Harry Lubcke. On June 29 NBC made a broadcast from the Empire State Building of a 343-line system; Philco demonstrated a 345-line system on a TV screen 9 1/2 by 7 1/2 inches. In August the Philco company made a seven-mile television broadcast. Germany broadcast the Olympic Games in Berlin with a 180-line electronic system. On Nov. 30, Frank B. Jewett of AT&T used the first coaxial cable to speak by telephone with FCC officials in Washington.

http://history.sandiego.edu/GEN/recording/television1.html

Friday, June 5, 2009

History of the Operating Room

Before the Operating Room: Magicians, Priests and Physicians

The development of surgery occurred in different regions at different times, in China, India, South America, Mesopotamia, Persia, Arabia and finally Europe. The early surgeons were either priests, magicians, physicians or barber-tradesmen who understood anatomy and were comfortable with the common practices of amputation and trephination.
Trephination is perhaps the oldest of surgeries that we know of. Because it involved cutting or grinding a hole in the skull, remnants are plentiful, as human skull bones have lasted for as many as 12,000 years intact. Neolithic evidence of trephination has been found in many disparate civilizations, from the pre-Incas in South America (2000 BC), to the early Europeans in France (5100 BC), to the Egyptians extending back as far back as 8,000 BC. The practice was probably originally performed for spiritual and magical reasons, and was performed by kings, priests and magician-physicians. It later was used to relieve pressure for head injuries, seizures and mental disorders such as psychosis.

Greece: The first surgical training program
“A physician is worth more than several other men put together, for he can cut out arrows and spread healing herbs.” (Iliad, Book XI) Greek surgeons were trained in semi-formal schools called Asklpieia. The result of this training resulted in a uniformity of medical and surgical practices that laid the groundwork for the modern training programs that would follow many centuries later.
Greek surgical techniques were mostly learned on the battlefield, where arrows were removed, wounds covered, tourniquets and vasculature ligatures applied and amputated limb wounds were closed. There were surgical specialists in some areas of gynecology (abortions were preformed, children birthed, infections drained), but most other surgeries did not include opening any cavities in the body, a practice that would last until the 19th Century.
Rome: The birth of the operating tent
The modern operating room is descended from the Roman military tent and hospital system that was perfected to a degree not matched again until the time of Napoleon. The first Roman Medical Corps was formed by Emperor Augustus. Medical professionals were required to train at the new Army Medical School and could not practice unless they passed stringent examinations.
The Roman military surgeon was called the “medicus vulnerarius,” the “wound doctor.” Roman military surgeons and their counterparts, the specialist arena surgeons (who maintained the health of the valued gladiators) were extremely proficient not only with their surgical techniques, but also in the organization of their infrastructure.
The medicus vulnerarius was in the field with the soldiers during battle, and managed a system that included surgery in the field, an ambulance team, and 2 receiving battlefield hospital tent systems located on opposite sides of the field. The tent system moved with the army.
Germany, France, Austria, England, America 1800 – 1900

Large, city-based charitable hospitals arose out of the medieval monetary medical care system in Europe during the late 1700's to care for the poor and indigent. Leading cities in Europe developed the operating theater as the venue for both operating and teaching. These theaters were modeled after the dissection theaters that gained fame in Padua, Leiden and other largely Italian cities. In 1822 the St Thomas’ Hospital built its operating theater, and in 1824, in Boston, what was to become known as the Ether Dome was built. These theaters remained the standard until the full acceptance of Semmelweis’ and Lister’s antisepsis regimens lead to the inclosure of the operating room and the introduction of sterile technique.
World War II and the Korean War

By World War II, the military hospital tent system was expanded to include the peripheral-style design for operating rooms that allowed for multiple patients to be operated upon simultaneously. All necessary components could be powered and supported from any location within the tent, so that a single tent had the flexibility to allow for a variable number of casualties to be operated upon at any time.
This peripheral design reached its zenith during the Korean War, with the development of the MASH (mobile army surgical hospital) concept. This format was the basis of modern operating room design, with support systems coming into the room from the periphery.

Photos of Operating Rooms through the 1900's

1952 1960





1995

http://www.optimusise.com/history-operating-room.php by John R. Mangiadi, MD FACS

"Magic Lanterns" Early Stereopticons



The stereopticon or "Magic Lantern" was a projector that used two lenses to blend picture slides together. Some early entrepreneures charged 10 cents to view slide shows. The use of the stereopticon and arranging slides to tell a story was the technology used before moving picture shows.1


Electricity was not always readily available. Some stereopticons used compressed hydrogen and oxygen gas to make a bright light to project the slide images onto a screen or wall. This type stereopticon was initially blamed for the Rhoads Opera House fire in Boyertown, Pa. on January 13, 1908. 170 people died in this fire. Many fire and safety codes were written from findings from the investigation of this fire.2

1"stereopticon." The Columbia Encyclopedia, Sixth Edition. 2008
Encyclopedia.com. 5 June.2009 http://www.encyclopedia.com/

2"The Rhoads Operahouse Fire; The Legacy of a Tragedy/cd 2008Maranatha Broadcasting Co. Inc Allentown, PA USA webmaster@wfmz.com

Wednesday, June 3, 2009

The Evolution of Smoke Detectors


Smoke detectors have evolved from a tool used to detect explosive gasses in mines. In 1939, Swiss Physicist Ermst Meili invented the ionization chamber detecting device used in smoke detectors today. Early smoke detectors of the 1950's were expensive and used only in commercial and public buildings. In the early 1970's, few smoke detectors were sold for installation in residential buildings. Improvements to batteries and electronics reduced the size and costs of smoke detectors in the mid 1970's. By 1977 more than 12 million smoke detectors were sold.
http://www.answers.com/topic/smokedetector

Telephones in 1951

The First Direct-Dial Transcontinental Telephone Call



On November 10th 1951 the mayor of Englewood, NJ picked up a phone and dialed a ten digit number for the first time. Eighteen seconds later he was connected to the Mayor of Alameda, CA who was Mayor Frank Osborne. They made history that day because it was the first customer dialed long distance call and it also introduced area codes. The Direct Distance dialing was so great because it cut the costs of long distance calls because they no longer needed the operator to get them a number! Imagine today having to pick up a phone and ask the operator to put your best friend on the line; technology has come a long way since 1951!



http://www.corp.att.com/attlabs/reputation/timeline/51trans.html

Sparks of Geniuses



Imagine living in a home with no light. Well 125 years ago not many had lights in their homes, their way through one room to another wasn't brighten up. Technology was way out off their leagues, their only thing to lighten their way were candles. Humphrey Davy, an English scientist experimented with electricity and invented an electric battery (in the 1800s). When he connected wires to his battery and a piece of carbon, the carbon glowed, producing light. This is called an electric arc.This led him to create the first electric light bulb. Then, 60 years later, an English physicist, Joseph Wilson Swan, found that a carbon paper filament worked well, but burned up quickly. In 1878, he demonstrated his new electric lamps and determined to provide practical long-lasting electric light. Meanwhile, an American inventor was already working his way to creating "better-longer- lasting" light bulbs. Thomas Edison that was, discovered that these carbon filament in an oxygen-free bulb glowed but did not burn up for 40 hours. Edison eventually produced a bulb that could glow for over 1500 hours. These bulbs lasted to a great minimum of time, but as technology improved in our world, than greater, better and much, much longer-lasting light bulbs were invented. That is why today even our nights are bright. What a difference..!


Read more at:

http://invsee.asu.edu/Modules/lightbulb/meathist.htm
http://www.articlesbase.com/accessories-articles/the-history-of-the-light-bulb-31355.html

Tuesday, June 2, 2009

The Colossus Codebreaking Computer

Could you imagine trying to break a code through this , what is considered to be a "code breaking computer"(a 1940s computer that cracked Nazi war-time codes).? Well with our technology in the past this is what our WWII was based on. It was based on allegations and threats, all written in codes, by other countries to ours. In order to understand what the threats were, people had to work numerous hours and days trying to figure out what the codes meant. It was then considered to be a laborious process. "In spite of the destruction of the Colossus hardware and blueprints as part of the effort to maintain a project secrecy that was kept up into the 1970s—a secrecy that deprived some of the Colossus creators of credit for their pioneering advancements in electronic digital computing during their lifetimes—a functional replica of a Colossus computer was completed in 2007"! The newer version doesn't seem very much different, although it is said to be less confusing.. hm go figure..!
Technology is something that not many can live without in this world, it can do the undone!













To read more accurate information about the Colossus Codebreaking Computer you can visit the websites below:

www.msnbc.msn.com/id/21840430/

http://en.wikipedia.org/wiki/Colossus_computer