In the year of 1905, Albert Einstein published a paper advancing the hypothesis that light energy is carried in discrete quantized packets to explain experimental data from the photoelectric effect. This model added to the advancement of quantum mechanics. c. Reason for listening: This topic is important because people often only think about Einstein’s theory of general relativity, but he offered so much more. d. Credibility: For my informative speech, I have conducted extensive research on the scientific contributions of Albert Einstein. e. Thesis Statement: People view Einstein work as just if he has only contributed a few things to sciences and physics, but he did a greater amount then the majority of people know.
The first rock candy colors were either red or blue. Red rock candy was made with a dye called cochineal which had red insects, while blue rock candy was colored from indigo colored plants. Rock candy is one of the oldest and purest forms of candy. It was originally used by pharmacists to make medicines for many kinds of illnesses. -You can see that the shapes of the rock candy crystals are very similar to those of the sugar crystals.
Joseph Priestley is known to most as the man who discovered oxygen, and seven other elements. He did not name it, but he did discover its presence and he called it “dephlogisticated air”. He did it by using a 12-inch-wide glass "burning lens," focusing sunlight on a lump of reddish mercuric oxide in an inverted glass container placed in a pool of mercury. He discovered three types of air: air, fixed air (carbon dioxide) and inflammable air (hydrogen). By doing so, Priestley also discovered 10 new gases: nitric oxide (nitrous air), nitrogen dioxide (red nitrous vapour), nitrous oxide (inflammable nitrous air), hydrogen chloride (marine acid air), ammonia (alkaline air), sulfur dioxide (vitriolic acid air), silicon tetrafluoride (fluor acid air), nitrogen (phlogisticated air), oxygen (dephlogisticated air), and a gas later identified as carbon monoxide.
From energy he became his attention to chemistry, reading the houses of gases. inside only some years he advanced on the preceding information of gas chemistry, which identified best three "airs" (air, carbon dioxide, and hydrogen), via adding ten new ones, along with oxygen, nitric oxide, nitrous oxide, hydrogen chloride, ammonia, sulfur dioxide, silicon tetrafluoride, nitrogen, and carbon monoxide. He summarized his early outcomes in an essay of 1772, "On extraordinary types of Air," published in the Philosophical Transactions. The essay stuck the eye of Lavoisier, who furnished the theoretical framework with which to make sense of Priestley 's
An English physicist named William Gilbert wrote books on the attractive nature of amber and used the Latin word "electricus" as a description. Several years later, another Englishman was inspired by Gilbert, his name was Thomas Browne. He wrote books on Physics, and created the word electricity to describe his investigations based Gilbert 's work. While being one of the many men who help to create electricity as we know it, Benjamin Franklin did not discover
The conspirator, Milton William Cooper, says their reason behind this was, “HIV/AIDS was created in laboratories … U.S. military to remove unnecessary elements of society and vast population of third world” (Cooper). In response to the Green Monkey theory Dr. Alan Cantwell says, “ There is no earthly way a heterosexually transmitted sexual disease ‘out of Africa’ could have been transported to New York City to infect ONLY young white homosexual men… first proven cases were discovered in New York City in 1979. The African AIDS epidemic was not uncovered until 1982” (Cantwell). In opposing views it is said that HIV was brought to humans by monkeys. Their theory says that a human may have been bit by a monkey therefore transferring the virus to humans, and then somehow spreading to America from
And the blue is for vigilance, perseverance, and justice. When the United States of America Flag was adopted in 1777 the colors red, white and blue did not have a meaning for the stars and stripes. Not only this but also the colors in Great Seal did have specific meanings. “ Over the years the stars and stripes have been changed 27 times mostly by the addition of stars to represent new stars”. “ The two colors red and blue were clearly derived from British sources” many English flags had red and white stripes”.
Charles W. Hull coined the term “stereolithography” and patented the method of the same as well in the year 1986. According to Charles, “stereolithography is the method of making solid objects by successively laying down thin layers of ultraviolet curable material one layer at a time through the use apparatus”. 3D SYSTEM INC. which is based in Rock Hill, South Carolina was the first company to generalize and commercialize the procedure. Charles entitled the patent as “APPARATUS FOR PRODUCTION OF THREE-DIMENSIONAL OBJECTS BY STEREOLITHOGRAPHY” in his U.S. patent 4,575,330. Technology The fundamental concept used in the process of stereolithography is forming of solid polymer by the use of photosensitive liquid when exposed to ultraviolet light.
The Milky Way was inspired by the Baby Ruth candy bar; the Mars company decided to make a new and better candy. The only difference was that the Milky Way’s did not use peanuts to make their candy. The same article supports that in 1854 Whitman sold the first packaged box of chocolates (para. 1). The Whitman Chocolate company was the first candy factory to sell a packaged box of chocolate.
Amedeo Avogadro did not discover or name "Avogadro 's number". He did however play a major role into the discovery of that number. In 1811 he proposed the hypothesis that the "equal volumes of gases at the same temperature and pressure contain the same number of molecules regardless of their chemical nature and physical properties". Many scientists after that used his hypothesis to try and calculate the number of molecules in a mole, Josef Loschmidt being one of those scientists. Josef Loschmidt greatly contributed towards the discovery of Avogadro 's number by being the first scientist to come up with a number, although it wasn 't 100% correct.
The third peak consisted of all four colors and finally the large peak consists of green and blue. Orange dyes would probably have the more noticeable peaks at the shorter wavelengths because both red and yellow both have peaks at the shorter wavelengths. Purple dyes would most likely have one distinct peak for a short wavelength and then one distinct peak for the longer wavelength because red has peaks at short wavelengths and blue has peaks at long wavelengths. The data observed looks almost nothing like the D2L data. Errors that could have caused this could be incorrectly using the fiber optic tool to measure the light being emitted.
But this was only the beginning of science. Document D starts to come out with a woodcut called “Zodiac Man” from a book by German astronomer Johann Regiomontanus during 1512, and a woodcut from anatomy book On the Makeup of the Human Body by Belgian physician Andreas Vesalius, 1543 (Doc D). The zodiac sign are the basses of the 12 constellations. It is believed that each sign of the Zodiac meant for a certain part of the body. Then later a man named Andreas Vesalius dissected a human corpses to figure it out more.
Chlorine combines with almost every single element, so it cannot be found in nature alone. It was first made by a Swedish chemist Carl Wilhelm Scheele in 1774. This happened when Scheele treated muriatic acid, or hydrochloric acid, with manganese dioxide. (Stwertka 69-70) Scheele mistakenly thought that it contained oxygen. The discovery was made in Uppsala, Sweden.
The earliest known surviving photograph made with a camera was taken by Joseph Nicéphore Niépce in 1826/7. What is an albumen print? What is an ambrotype? An albumen print was the first commercially available method of producing a photographic print from a negative from a negative. An ambrotype was also known as a collodion positive in the UK, was a positive photograph on glass made by a form of the wet plate collodion process.
Galileo says that he would feel better coming out with his ideas if the idea was more populrized in a positive way. According to document 6, Galileo was an inventor. Even if he didn’t invent the first ever telescope, he invented a very updated version of it. When looking through his invention, he saw that the moon wasn’t smooth and has sunspots which supportted and extened the heliocentric