MARIE CURIE BIOGRAPHY

Marie Sklodowska Curie was a woman scientist who was born in Warsaw, Poland on November 7, 1867. He was born in a family of teachers. Her father is a physics teacher. Meanwhile, her mother was a school principal. Marie is the youngest of five children.

She is very intelligent and has a strong memory. Thus, at the age of 15 years, she graduated from High School with highest honors. However, he could not continue their education to university because in Poland at that time she studied at the University is prohibited. In addition, he also did not have enough money because his family is poor. Therefore, at the age of 17 years he became a tutor to earn money.

Then, after collecting enough money she moved to Paris and enrolled at the Sorbonne. There, his name was eventually changed to Marie and she met in 1894. A year later they were married and since then his name to Marie Sklodowska Curie.

Two years later, Marie's interest in the study of light was discovered by Henry Becquerel in 1896. Rays are similar to X-rays on uranium. After studying the ray finally in 1898 he discovered thorium, polonium, radium, and coined the term radioactivity. Then, in 1903 he along with Henry Becquerel and Pierre Curie received the Nobel chemistry prize for discovering polonium, radium, and isolating radium which later developed into the manufacture of nuclear materials.

Because of this discovery Marie became so famous in the world. However, because of his discovery he was also attacked by blood cancer. We investigate and separate the radium was too much exposed to radioactive rays. As a result, he suffered from blood cancer and died on July 4, 1934 in Savoy, France at the age of 67 years.

Even so, she still remembered as the first woman in the world to be a professor at the Sorbonne, physicists, chemists and scientists as well as the woman who was so instrumental in finding the manufacture of nuclear materials. In addition, he also was the first person in the world that managed to get the Nobel prize twice. The first Nobel Prize for Physics and the second for Chemistry.

A year after the death of one of Marie's daughter named Irene also received the Nobel chemistry prize with her husband, Frederic Joliot, because it managed to make a new element that is radioactive. Meanwhile, another daughter named Eve became famous for being the author of biographies of Marie.

ALBERT EINSTEIN'S BIOGRAPHY

Albert Einstein (14 March 1879-18 April 1955) is a theoretical physicist widely regarded as the greatest scientist in the 20th century. He put forward the theory of relativity and also greatly contributed to the development of quantum mechanics, statistical mechanics, and cosmology. He was awarded the Nobel Prize in Physics in 1921 for his explanation of the photoelectric effect and "for his services to Theoretical Physics". Having formulated the theory of general relativity, Einstein became famous throughout the world, an unusual achievement for a scientist.
In his old age, fame beyond all scientists in history, and in popular culture, says Einstein is considered synonymous with intelligence or even genius. His face is one of the most recognized worldwide. In 1999, Einstein called "The Century" by Time magazine. Popularity also makes the name "Einstein" is widely used in advertisements and other merchandise, and finally "Albert Einstein" is registered as a trademark. To appreciate them, a unit in the photochemistry named Einstein, a chemical element named after einsteinium, and a named asteroid 2001 Einstein.

BICYCLE HISTORY

Bicycle ancestors came from France in1790 (about 18th century), namely, two-wheeled transportation called velocipede known in that country.The construction still very simple, because not using the iron, the material is still wood, and not use the wheel.

Baron von Drais Karls Sauerbronn a student of mathematics and mechanics in Heidelberg, Germany managed to make a important breakthrough .By Von Drais be modified to have a steering mechanism on the front wheels. By taking the energy of motion of both legs, Von Drais able to glide faster time around the garden. He himself calls this vehicle with the name, Draisienne. The story itself was published in local newspapers of Germany in 1817.

Modern bicycle was initiated in 1839, by a citizen named Kirkpatrick MacMillan of Scotland. While perfecting bicycle do by Ernest Michaux, the French in 1855, by making crank weights. Perfection of the modern bicycle is further reinforced again by a French citizen who was also named Pierre Lalle ment in 1865, where he strengthened the wheel by using a ring of steel around it (a rim or wheel). Lellement also introducing a bike with the front wheel bigger than the rear wheels.

But no less important discoveries made John Boyd Dunlop in 1888. Dunlop motorcycle tires managed to find technology that can be filled with air (pneumatic tire). From here, the beginning of the rapid progress of the bike. Various forms of bicycles successfully created.

WI-FI (WIRELESS FIDELITY)

Wi-Fi (Wireless Fidelity) is a wireless networking technology that uses radio waves to provide network connectivity and Internet high speed level.Wi -Fi Alliance, an organization that has Wi-Fi trademark term, specifically defines Wi-Fi as part of the product WLAN (Wireless Local Area Network) based on the standards of the Institute of Electrical and Electronics Engineers (IEEE) 802.11. Wi-Fi is easy it also means the IEEE 802.11x.

Initially, Wi-Fi is used only in the 2.4GHz 802.11b standard, but Wi-Fi Alliance has expanded its use of the term Wi-Fi to any type of network or WLAN products based on 802.11 standards, including 802.11b, 802.11a. dual-band, and others.

Wi-Fi to work without using a physical connection between sender and receiver cables, but with the technology of Radio Frequency (RF), a frequency within the electromagnetic spectrum associated with radio waves. When RF is supplied to an antenna, the electromagnetic, will be made and entered into a corner of a wireless network called an Access Point (AP). The main task is to spread AP (broadcast) wireless signal is detected on the computer and 'entry' into it. To connect to the AP and join the wireless network, computers and devices must be equipped with wireless network adapters.

Wi-Fi is available at: video game consoles, home networks, PDAs, mobile phones, operating systems, and other types of electronic products. Product that has been tested using a Wi-Fi will be labeled Wi-Fi Certified by the Wi-Fi Alliance.

GOOGLE CHROME FOR WINDOWS,MAC,AND LINUX

The world's largest search engine, which is headquartered in the U.S.A , Google, has launched the latest version of the browser, Google Chrome for Windows, Mac and Linux.Brian Rakowski, Google Chrome Product Manager explains "Since the end of December last, we have to test and build new features for Mac and Linux can work with Chrome like any version of Windows. And finally today we announced that for the Mac and Linux versions are available. ". Google itself says that the new version was launched it was included in the fastest version. "We've developed a Javascript performance between 213% and 305% with V8 and SunSpider benchmark since our first beta version of Chrome on the Cretaceous period in September 2008 who then" added Rakowski.

In addition to speed so fast, other features created by this new Chrome, among others, the ability to perform the sync browser (bookmarks, themes, settings and startup homepage, web content settings, preferred languages and the page zoom setting) at different types of computers, the ability to read HTML5 (Geolocation API, App Cache, Web sockets and files drag-and-drop), and the most recent bookmarks manager. According to Rakowski HTML5 features the ability to try, try browsing to a website that you built using platforms such as scribd.com HTML5, then try performance drag-and-drop in Gmail or enable Geolocation feature on Google Map. Google also plans to open the Chrome Web Store that will provide a gallery of web applications that not only work for Chrome.

Come immediately download and use the latest version of Google Chrome this!

THEORY EVOLUTION FROM CHARLES DARWIN

Evolutionary theory was pioneered by a zoologist named Charles Robert Darwin (1809-1882). The theory that says: A body (material) experienced a change from an imperfect toward perfection. Then he expanded his theory was to come to the origin of man. According to human beings today is the most perfect result of these developments on a regular basis by the laws of mechanics as well as plants and animals. Then was born a teaching / understanding that human beings have now is a result of evolution of great apes (human apes to walk upright) for years and have reached the most perfect.Theory form of Darwin in his book entitled "The Origin of Species" huge success because it can be said to discuss issues pertaining to human origins.

Inside Darwin's theory argued that human beings originated from the development of a simple kind of apes evolved into ape animal high level until it becomes human. The oldest living creature with human-like form is Australopithecus, which estimated his age between 350000-1000000 year with a brain size of about 450-1450 cm3. Development with changes in brain volume was greater the effect on human intelligence. Australopithecus who have an average brain volume of 450 cm3 apes evolved into humans (Neanderthals) who has a brain volume of 1450 cm3. From this study are expected in the time between 400000-500000 years that brain volume increased in 1000 cm3.

SPIRAL GALAXY

The galaxy is a gathering place of stars in the universe. Almost did not find any star that wanders alone in the space between galaxies. And Sun are among 200 billion stars in our Milky Way galaxy (abbreviated with Galactic). Assuming that the average mass of stars in the galaxy is the Sun's mass, the mass of the galaxy can reach 2 x 10 ^ 11 solar masses (the mass of the Sun is 2 x 10 ^ 30 kg).

Milky Way galaxy shapes such as two concave plates are cupped, thick middle part and increasingly flattened towards the edge, and there are spiral arms in it. Therefore, our galaxy is classified into a spiral galaxy. Based on the Hubble galaxy classification, including the Milky Way galaxy SBbc class. This means that our galaxy is a spiral galaxy that has a "bar" or the crossbar in the center, with the brilliance of the central section is relatively similar to the disc, and has a spiral arm structure is somewhat tenuous at the rotation.

Spiral galaxies are composed of three main parts, namely the bulge, halo, and disc. All three have the shape, size, and objects of different authors. In fact, the bulge and disc to be determinant in the classification made by the Hubble galaxy (diagram of a tuning fork). Regions in parts of the galaxy bulge is the most high-density star. stellar halo are stars that are in the halo. But few individual stars found in this section. The more dominant is the group of old stars that the number of member stars reach the millions of pieces, called globular clusters .On the disc there are young stars and interstellar gas and dust located in the spiral arms.

ALEXANDER FLEMING (DISCOVERER OF PENICILLIN)

Sir Alexander Fleming (6 August 1881 - 11 March 1955) was the man known as the discoverer of penicillin (an antibiotic to fight bacteria). Born on a farm near Darvel Lochfield, Scotland. He was the third of four brothers and half-brother has four people again.

Fleming went to Loudoun Moor School and Darvel School, and then for two years he attended Kilmarnock Academy. After working in an office delivery service for four years, 20-year-old Fleming was partly inherited from his uncle's property.

Fleming's brother, who was then a doctor suggested that his younger brother following in the footsteps of his career, so that Alexander Fleming in 1901 and then enrolled at the Hospital of St. Mary's, London. He then obtain a special qualification for school in the year 1906 with an option to be a surgeon. Alexander Fleming himself famous because she is an expert researcher who is very clever, but the lab itself is often clumsy and look messy.

In 1928, after coming home from a long holiday, Fleming will afterthought in the disc of bacteria in the laboratory forgot to save it nicely, and has been contaminated with a type of mushroom. Some laboratory dish containing the bacteria in the waste, but then Fleming noticed that the growth of bacteria in the contaminated by the fungus becomes obstructed. Fleming then took samples of examples of these fungi and examine it, he discovered that the fungus is from the genus Penicillium. This is why the drug called penicillin.

Fleming's discovery in September 1928 marked a new century in the world of modern antibiotics. Fleming also found that the bacteria themselves can develop resistance and resistance to penicillin when penicillin is used as an antibiotic is too little and used in the short term.