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I. There are many things that we use almost every day that we never seem to think about. Many of these things are very useful in our lives. One invention that I believe is most used and looked over is the bicycle. Bicycles are used by countless groups of people and things like BMX, Pro Cycling, X-games, recreation, and even as a means of transportation.
II. The documents and creation of the 1st bicycle was in Germany in 1817. They called it a Draisine. The Draisine was very different from the bike we know today. It had no pedals and you move it by pushing your feet on the ground. It was given many names like strider or velocipede, but as the design of the idea changed over the years, the word bicycle seemed to have stick there on. Surprisingly the word “bicycle” was devised by the French 43 years later in the 1860’s.
Between 1820 and 1860, there were many developments being made to make human-powered machines. The goal was to make transportation more efficient and practical. The idea of balancing on two wheels was dismissed and so all the designs had either 3 or 4 wheels. The problem with these designs was that they were extremely heavy and most of them proved to be less efficient than even walking!
In 1870, the Frenchman Eugene Meyer was credited for inventing the high bicycle. The improvements enabled the rider capable of higher speeds based on how long your legs were.
III. The inventor of the first successful traditional (safety) bicycle was John Kemp Starley. He was born in 1854 and was an English inventor who industrialized the bike and became know as the creator of the modern bicycle. He grew up being the son of a gardener. In 1872, he moved out of the house to work with his uncle building Ariel cycles. He started his own company as a partnership with a cycling enthusiast William Sutton, the company was named Starley & Sutton Co. After making kids tricycles for a year or two, the struck gold when they made the safety bike for all ages in 1889.
They became the first bicycling company in the world to mass produce and export bikes. After much success, their company became know as the Rover Cycling Company. Then suddenly in 1901, John Starley passed away, leaving the company with William Sutton. Interestingly enough, as the years went by in the 19th century and the world started to go into the automobile era, the Rover company switched from doing bikes to motorcycles and cars. If you notice how the name Rover rings a bell? Well, this company that made the first ever modern bike, is the same exact company as Land Rover today.
IV. The creation of the bicycle has had a tremendous impact on the world. It opened the way for the later invention of the motorcycle and changed the way many people live, especially in countries where there is no gas or where the gas is too expensive, it has given people a means of transportation for just about anybody. Also, the bicycle has paved the way not only for transportation, but for fitness too. The bicycle has such a great impact on the world and it continues to this day.
V. The article titled “Rover – How it Began” was a well written synapsis of John Starley’s rise to making the Rover Cycling company. It explained how he rose to the top and became the number one bicycle company during the early 1900’s.
References:
http://en.wikipedia.org/wiki/History_of_the_bicycle
http://en.wikipedia.org/wiki/John_Kemp_Starley
http://www.rover.org.nz/pages/histpic/hind1.htm
http://en.wikipedia.org/wiki/Rover_Company
“Can you hear me now?”
Introduction:
The cell phone originally was introduced in the 1970’s, and they were about the size of a car battery. Dr. Martin Cooper from Motorola was the first person to show a mobile phone. Motorola introduced the first commercially available mobile cell phone in 1973. By 1990, 12.4 million people worldwide had cell phones.
Discovery:
The first call placed from a cell phone was from a car in St. Louis, Missouri on June 17, 1946. However, this system was too impractical from what we consider a mobile handset today. The equipment weighed 80 pounds and the service cost around $337.33 today.
The first commercially automated cell phone service, 1G, or first generation, was launched in Japan, and within five years grew to a nationwide service. In 1991 Finland introduced the first “modern” network technology, on digital 2G, or second generation. In 2001 the first commercial launch of 3G, or third generation was again in Japan.
Today, cell phones are quickly advancing to 4G, or fourth generation. In December, 2009, Sprint began advertising the first 4G cell phone. Future advancements for the mobile phone are close on the horizon, as prototypes are being built and tested daily.
Investigator:
Martin Cooper was born December 26, 1928. After World War II, he left the Navy and in 1954 was hired by Motorola to work on their mobile communications project. On April 3, 1973, Martin Cooper made the first cell phone call in public. This phone connected Cooper to the base station on the roof of the Burlington House across the street from a hotel where Cooper was supposed to later hold a press conference. Reporters and passer-bys watched as Cooper dialed, help the phone to his ear, and spoke to Dr. Joel S. Engel. After demonstrating the cell phone prototype, Cooper allowed some reporters to call anyone they wanted to show how well the cell phone could work.
Impact:
Cell phones have become a norm in today’s society. When the cell phone as first introduced, it was simply a way to make calls on the go an communicate between people. Today, it has become a way to surf the net, check emails, play games with friends across the globe, and to create and identity for yourself, to name a few functions. Users can choose a background, a ringtone, and personalize voicemails and contact pictures. Cell phones can help to make everyday lives easier by making things such as emails and business information accessible on the go.
But with all the pluses, are of course negatives. Because cell phones have become part of us, many people don’t think twice about using cell phones while driving, increasing the numbers of fatal accidents. Cell phone users need to be more cognicent of where cell phones are used. Noise pollution is also an issue. In 2003, cell phone conversations totaled almost 830 billion minutes. Today, certain places are banning cell phones and asking people to silence their cell phones.
Review of Journal Article:
In the journal article “Cell phone Induced Failures of Visual Attention During Stimulated driving, it examines the results of how talking on a cell phone affects simulated driving. The findings of the study are that using a mobile phone while driving distracts the driver from fully being able to focus on the road, and drivers who used cell phones were more likely to look directly at a road sign or such and not remember it later.
Bibliography:
Javadi, K. (n.d.). Retrieved from http://www.askkia.com/articles/societal-impact-of-wireless-technology-on-society.html
(n.d.). Retrieved from http://en.wikipedia.org/wiki/Mobile_phone
(n.d.). Retrieved from http://www.soc.hawaii.edu/leon/409as2006/wong/visualattention.pdf
Nash, J., & , Initials. (n.d.). Retrieved from http://www.suite101.com/content/cell-phone-history-a47053
DNA Testing
I. Intro
DNA testing is a technique used by scientists to identify individuals by their respective DNA profiles. DNA profiles are sets of numbers that reflect a person's DNA makeup, which can also be used as the person's identifier. Although 99.9% of human DNA is the same in every person, enough of the DNA is different to distinguish one individual from another. Alec Jeffreys discovered it in the 1980’s. Since then criminal investigation has been revolutionized.
II. Discovery
On September 10, 1984 Jeffreys made a monumental discovery. He noticed the difference between DNA. He first tested his technique on a double-murder case. Because of DNA testing Colin Pitchfork was convicted of the murder. Without this method another man would have been incorrectly persecuted. Since then DNA testing has taken place in numerous cases, leaving no doubt who is innocent and who is guilty.
III. Biography of Inventor
Alec Jeffreys was a scientist from the start. He was born on January 9th, 1950 in Oxford, England. When he was eight years old, his father gave him a small chemistry kit. When he got a little older, his father gave him a telescope. Finally, when he turned twelve, his gave him a dissecting kit. He actually brought home a dead cat and dissected it. When Jeffreys got older he followed his passion of science and got a degree in biochemistry. It was because of his studies that he discovered DNA profiling.
IV. Impact on World/ Humanity
DNA testing has had a huge impact on crime fighting and criminal justice. DNA testing has been the silver bullet for crime fighting. All that is need is a fingerprint, a single strand of hair, or even a drop blood. Because of this, narrowing down suspects is very simple. This way, innocent people are not accused and the criminals can be brought to justice.
V. Journal Article Review
This article was incredibly helpful in finding information. It helped me truly understand what DNA testing is all about. It showed the good and bad sides of it. It tackled the fact that it was incredibly useful for solving crimes and asked the question of whether or not it was an invasion of privacy.
VI. Videos
This video is Alec Jeffreys talking about DNA testing. http://www.youtube.com/watch?v=0jmB1SuK-Vo
Joseph Neuberger comments on proposal for mandatory DNA sampling of those individuals charged with a criminal offence in the City of Toronto. http://www.youtube.com/watch?v=wBstIzITiVs
VII References
Science hall of fame http://www.invent.org/hall_of_fame/235.html
Wikipedia http://en.wikipedia.org/wiki/Alec_Jeffreys; http://en.wikipedia.org/wiki/DNA_profiling
Harlan, Leigh M. (2004) When Privacy Fails: Invoking a Property Paradigm to Mandate the Destruction of DNA Samples. Duke Law Journal, Vol. 54
Youtube http://www.youtube.com/watch?v=wBstIzITiVs; http://www.youtube.com/watch?v=wBstIzITiVs