The space

Everyone knows that the space has a lot of advantage related with technology. One of this advantages could be the artificial satellites, sent them with an special instruction or objetive. Some of them were made for comunication’s systems. Other ones were made them for Military aplications, navegation, etc.

The first artificial satellite was launched October 4, 1957. And it wasn't American. The Soviet made Sputnik, weighing about 183 lbs., took about 98 minutes to orbit the Earth on its elliptical path, 500 miles up. Traveling at 18,000 miles an hour, Sputnik would "beep, beep, beep" it's telemetry as it passed over. The satellite transmitters operated for three weeks, until the on-board chemical batteries failed, and were monitored with intense interest around the world.

Other types of satelites are the GPS (Global Positioning System). The Global Positioning System, usually called GPS, is the only fully-functional satellite navigation system. A constellation of more than two dozen GPS satellites broadcasts precise timing signals by radio to GPS receivers, allowing them to accurately determine their location (longitude, latitude, and altitude) in any weather, day or night, anywhere on Earth.

GPS has become a vital global utility, indispensable for modern navigation on land, sea, and air around the world, as well as an important tool for map-making, and land surveying. GPS also provides an extremely precise time reference, required for telecommunications and some scientific research, including the study of earthquakes.

Military Applications
GPS allows accurate targeting of cruise missiles and precision-guided munitions (or "smart bombs"), as well as improved command and control of forces through improved locational awareness. GPS increases the accuracy of submarine launched ballistic missiles, since knowing the exact launching position allows for more accurate targeting of the missile. The satellites also carry nuclear detonation detectors, which form a major portion of the United States Nuclear Detonation Detection System. Commercial civilian GPS receivers are required to have limits on the velocities and altitudes at which they will report coordinates; this is to prevent them from being used to create improvised missiles.

Navigation
GPS is used by people around the world as a navigation aid in cars, airplanes, and ships. The system can also be used by computer controlled harvesters, mine trucks and other vehicles. Hand-held GPS receivers can be used by mountain climbers and hikers. Glider pilots use the logged signal to verify their arrival at turnpoints in competitions. ffe3rdLow cost GPS receivers are often combined in a bundle with a PDA, car computer, or vehicle tracking system.

Surveying
More costly and precise receivers are used by land surveyors to locate boundaries, structures, and survey markers, and for road construction.


GPS on airplanes
Most airlines allow private use of ordinary GPS units on their flights, except during landing and take-off, like all other electronic devices. Additionally, some airline companies disallow use of hand-held receivers for security reasons, such as unwillingness to let ordinary passengers track the flight route. On the other extreme, some airlines integrate GPS tracking of the aircraft into their aircraft's seat-back television entertainment systems, available even during takeoff and landing to all passengers

Brain & Mind

You may hear about brain washing, may be fooled with kids’ jokes like brainless or maybe you heard this word brainstorm from the Clara Gallardo’s class. All of them have something to be with the main source of your sick ideas.

The brain is like an extensive intricate sponge through nuclei within its path, absorbing every crumb within its path, to be used at some latter-date, neurons hold information of one's own free will, and embrace that which is precious and dear to them.

The cerebral hemispheres are divided right down the middle into a right hemisphere and a left hemisphere. Each hemisphere appears to be specialized for some behaviors. The hemispheres communicate with each other through a thick band of 200-250 million nerve fibers called the corpus callosum.

• Right Side - Left Side

The right side of the brain controls muscles on the left side of the body and the left side of the brain controls muscles on the right side of the body. Also, in general, sensory information from the left side of the body crosses over to the right side of the brain and information from the right side of the body crosses over to the left side of the brain. Therefore, damage to one side of the brain will affect the opposite side of the body.

In 95% of right-handers, the left side of the brain is dominant for language. Even in 60-70% of left-handers, the left side of brain is used for language. Back in the 1860s and 1870s, two neurologists (Paul Broca and Karl Wernicke) observed that people who had damage to a particular area on the left side of the brain had speech and language problems. People with damage to these areas on the right side usually did not have any language problems. The two language areas of the brain that are important for language now bear their names: Broca's area and Wernicke's area.

So, we have just one brain, but it's divided in regions according to the functions they control. =P and there we go!

Medicine

One of the most important factors about people's lives is the information of, the use of, and the growing knowledge of medicine. Medicine is a science that nations all over the world use. It is a science because it is based on knowledge gained through careful study and experimentation. Medicine is also an art form because it depends on how skillfully doctors and other medical workers apply their knowledge when dealing with patients.

Medicine is one of the most respected professions. The two important goals of medicine are to save lives and to relieve suffering, which is why it is so respected. what ... you didn't know about it? when talking about medicine you talk about silicon? you must are a Tec-fashion girl. Am I wrong?...

It's impossible to think about medicine and not thinking about science and technology, man, it's incredible what medicine can do with the use of technology; from perfect cuts in surgery, to looking inside your body.

Throughout many, many centuries, medicine has been used in hundreds of different forms. But the main goal of every different form was the same, to help the diseased and unhealthy. Every passing day, another scientist or doctor discovers another breakthrough in science and medicine. In years to come, we will have cures to incurable diseases, and people will be living ten to twenty years longer then they are today. Medicine provides us with the needs and hopes for the future, as our technology makes the path for us to follow.

Genetic Engineering

In today's world, people are learning a great deal in the rapidly growing fields of science and technology. Almost every day, you see or hear about a new discovery or advance in these fields of study. One very common and controversial topic in the news and social talk of many people recently is what us, as human beings, will be able to do through the development of genetic engineering. Many people are wondering if the manipulation of human cells is morally wrong to the laws of nature or religion, especially in childbirth.

Scientists are excited a out the prospects for new medications, new agricultural crops, and new means of solving environmental problems. On the other hand, the potential risks of genetic engineering are also well recognized. Scientists have been long aware that there can be unwanted side effects, unanticipated social costs and, and unseen public health and environmental risks. Theses concerns early on caused scientists to put in action a suspension on certain classes of recombinant DNA experiments. Meaning, it was the scientists themselves who evaluated the risks first.

Dolly was a sheep that was the first living clone in its time.

This was a magnificent feat but what did it mean? To some it meant a world of possibility, to others it meant havoc. Who is right? Who is wrong? These questions are unanswerable which results in a never-ending controversy. This controversy over the benefits and dangers of genetic engineering in humans, animals and plants will live on forever. There are many benefits of genetic engineering. At the forefront of these benefits is preventing and curing illnesses. Up to this days the stem cells are saving many people, by repairing their organs or create another ones by this cells.

Whether or not there is legislation condoning genetic engineering or prohibiting it, there will be controversy. This controversy will exist for as long as human beings walk the Earth we live on. Whether the controversy is over something petty or something as serious as cloning human beings, the arguers will argue on and on, endlessly.





WORKS CITED


D'Allegro, Joseph. "Genetics is the future of medicine." Dec. 20, 1999.

http://firstsearch.oclc.org/FETCH:renco=8. 3/16/00.


Fischer, Joannie Schrof. "Copies upon copies A patent for human clones is just the next step." U.S. News and World Report. Feb. 7, 2000. http://proquest.umi.com/pqweb?TS=9532139. 3/16/00.


Ramsay, Sarah. "Embryo splitting produces primate clone." Lancett Ltd. 1/15/00.

http://proquest.umi.com/pqdweb?TS=9532143. 3/16/00.

Ecosystems

What’s and ecosystem? Well, an ecosystem is the conjuction of plants and animals living in the same region. Ecosystems are comprised of various trophic levels, or groups of plants and animals that reflect their main energy source. Ecological pyramids can be used to show the relationship between trophic levels. Organisms from each trophic level, feeding on one another, make up a series called a food chain.

We can infer a good ecological balance by knowing the ecological efficiency that is the proportion of energy at a certain level that is transferred on to the next level. Usually, only 10% of the energy at one level is transferred on to the next trophic level. The remaining 90% is consumed by the plant or animal for its own metabolic activities, or it is transferred to decomposers when it dies.

Ecosystems are the battery for our planet, the motor that keep our lungs breathing and the home for almost every species in this world. Recent growth in scientific knowledge has helped humanity comprehend the complex relationships in ecosystems and the devastating effects of human interference. As a result we have become increasingly aware of the need to protect and manage the ecosystems that we do have remaining for their utility, genetic, intrinsic and heritage values and also for the need to allow natural change and thus evolution to take place. Natural ecosystems have provided much that has been of benefit to humanity and with careful protection it can last for many more generations. Management strategies involving sustainable development, total preservation and the educating of the populace are becoming progressively more important in today's society and for the protection of ecosystems.

We may think that technology just affects the ecosystems, but there are some ways in which technology is helping our world such building new weather-controlled habitats for the species in danger, and then sending them back home; and what about the protect of soil by adding it new chemicals. There are also many ways in which technology is helping the ecosystems; just you have to look around for fundations like greenpeace that uses the technology for saving our ecosystems.

Natural ecosystems are part of our lives and need to be effectively managed so as to ensure they remain undamaged, and to ensure that any damage done is immediately rectified. Sustainable development, total preservation and the educating of the populace are some of the most effective management policies and need to be enacted to manage and preserve our precious earth and its ecosystems.

Communication

And now, let’s talk about communication and technology. As we know, there are a lot of communication techniques that use technology. These technologies have been changing with the time. Every day, new products come from factories and laboratories to make easier our life.

Basically, technology is the current state of our knowledge of how to combine resources to produce desired products, to solve problems, or satisfy wants. Technology in this sense includes technical methods, skills, processes, techniques, tools.

Communications now rules our entire life, is everywhere and constantly evolving what makes it stay with us almost forever. YEHAAA!

The most important Discoveries of the humanity

Hi everybody, first of all welcome to our web-blog, we hope you like it and feel free to post anything =P.

Ok, let’s start with a good topic to talk about. I know we found the technology as something that has been attached to our lifes since our childhood, but have you ever guessed how was it before … before the radio, the TV, the computers, the palms, the cell phones, the DVD’s, the 21’ Plasma Screens, the Game Boy, the Digital Cameras and all of this technology we use and share everyday. Nevermind, you don’t have to suffer trying to imagine this mess.

Hey! What about the discoveries? What about the antibiotics and the teories of many great scientists? We may forget about it because we grow knowing that the Earth is a sphere, or because we always wash our hands (no one until the 19century knew the existence of the bacteria huh!).

Since the nineteenth century scientists had made remarkable discoveries. These scientists and their discoveries helped pave the way for future discoveries in science and technology. Some of the famous names from the nineteenth-century are Charles Darwin, Joseph Lister, Allessandro Volta, Gregor Mendel, Louis Pasteur, and many more.

And the TOP 10 is:

1. Natural Selection – Charles Darwin
2. General Relativity – Albert Einstein
3. E=mc2 – Albert Einstein
4. Periodic Table of elements – Mendeleyev
5. The earth moves – Nicolaus Copernicus
6. Inheritance’s Law – Mendel
7. Germ Theory - Louis Pasteur
8. Penicillin - Alexander Fleming
9. Microorganisms – A. Von Leeuwenhoek
10. Laws of Motion - Issac Newton

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CESAR CALDERON
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MANUEL MAYORQUIN
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