Gunpowder Facts, History and Description

Gunpowder or black powder is of great historical importance in chemistry. Although it can explode, its principal use is as a propellant. Gunpowder was invented by Chinese alchemists in the 9th century. Originally, it was made by mixing elemental sulfur, charcoal, and saltpeter (potassium nitrate). The charcoal traditionally came from the willow tree, but grapevine, hazel, elder, laurel, and pine cones have all been used. Charcoal is not the only fuel that can be used. Sugar is used instead in many pyrotechnic applications. When the ingredients were carefully ground together, the end result was a powder that was called serpentine. The ingredients tended to require remixing prior to use, so making gunpowder was very dangerous. People who made gunpowder would sometimes add water, wine, or another liquid to reduce this hazard since a single spark could result in a smoky fire. Once the serpentine was mixed with a liquid, it could be pushed through a screen to make small pellets, which were then allowed to dry. How Gunpowder Works To summarize, black powder consists of a fuel (charcoal or sugar) and an oxidizer (saltpeter or niter), and sulfur, to allow for a stable reaction. The carbon from the charcoal plus oxygen forms carbon dioxide and energy. The reaction would be slow, like a wood fire, except for the oxidizing agent. Carbon in a fire must draw oxygen from the air. Saltpeter provides extra oxygen. Potassium nitrate, sulfur, and carbon react together to form nitrogen and carbon dioxide gases and potassium sulfide. The expanding gases, nitrogen and carbon dioxide, provide the propelling action. Gunpowder tends to produce a lot of smoke, which can impair vision on a battlefield or reduce the visibility of fireworks. Changing the ratio of the ingredients affects the rate at which the gunpowder burns and the amount of smoke that is produced. Difference Between Gunpowder and Black Powder While black powder and traditional gunpowder may both be used in firearms, the term black powder was introduced in the late 19th century in the United States to distinguish newer formulations from traditional gunpowder. Black powder produces less smoke than the original gunpowder formula. Its worth noting early black powder was actually off-white or tan in color, not black! Charcoal Versus Carbon in Gunpowder Pure amorphous carbon is not used in black powder. Charcoal, while it contains carbon, also contains cellulose from incomplete combustion of wood. This gives charcoal a relatively low ignition temperature. Black powder made from pure carbon would barely burn. Gunpowder Composition There is no single recipe for gunpowder. This is because varying the ratio of the ingredients produces different effects. Powder used in firearms needs to burn at a fast rate to quickly accelerate a projectile. A formulation used as a rocket propellant, on the other hand, needs to burn more slowly because it accelerates a body over a long period of time. Cannon, like rockets, use a powder with a slower burn rate. In 1879, the French prepared gunpowder using 75% saltpeter, 12.5% sulfur, and 12.5% charcoal. The same year, the English used gunpowder made from 75% saltpeter, 15% charcoal, and 10% sulfur. One rocket formula consisted of 62.4% saltpeter, 23.2% charcoal, and 14.4% sulfur. Gunpowder Invention Historians believe gunpowder originated in China. Originally, it was used as an incendiary. Later, it found use as a propellant and explosive. It remains unclear when, exactly, gunpowder made its way to Europe. Basically, this is because records describing the use of gunpowder are difficult to interpret. A weapon that produced smoke might have used gunpowder or could have used some other formulation. The formulas that came into use in Europe closely matched those used in China, suggesting the technology was introduced after it had already been developed. Sources Agrawal, Jai Prakash (2010). High Energy Materials: Propellants, Explosives and Pyrotechnics. Wiley-VCH.Andrade, Tonio (2016). The Gunpowder Age: China, Military Innovation, and the Rise of the West in World History. Princeton University Press. ISBN 978-0-691-13597-7.Ashford, Bob (2016). A New Interpretation of the Historical Data on the Gunpowder Industry in Devon and Cornwall.  J. Trevithick Soc.  43: 65–73.Partington, J.R. (1999). A History of Greek Fire and Gunpowder. Baltimore: Johns Hopkins University Press. ISBN 978-0-8018-5954-0.Urbanski, Tadeusz (1967),  Chemistry and Technology of Explosives,  III. New York: Pergamon Press.

Betrayal Rhetoric and Ethos Julius Caesar Free Essays

To get credit for the collaboration activity, Betrayal 01, 02, 04, 05, and 06: A. ) Submit this attachment in A Collaboration Process. Then copy and paste the below information in the student comment area of A Collaboration Product and Betrayal 01, 04, and 05: 1. We will write a custom essay sample on Betrayal: Rhetoric and Ethos Julius Caesar or any similar topic only for you Order Now Date you attended the session. 2. At least 3 sentences explaining how Shakespeare’s story about Julius Caesar is different than what really (historically) happened in Caesar’s life. 3. Give examples of the three persuasive techniques from either Antony’s or Brutus’s speech. logos, pathos, and ethos) 4. Give an example of one traitor and one patriot with supporting examples from the play. 5. At least 3 sentences explaining what you did in the session so that someone who did not attend would have an understanding of it. 6. At least 3 sentences evaluating how well your group worked together to accomplish your task. B. ) Submit this in Betrayal 02: 1. Complete the Lesson 2 Quiz. For the essay questions, you may respond, â€Å"I attended the Betrayal Live Lesson on __________ (date). C. ) Schedule Betrayal 6 DBA as we still need to complete that on the phone. If you are an honors student, complete the honors assignment before the dba. D. ) If you are an honor s student, complete lesson 8. Lesson 8 Assignment 1. ) Choose which character from â€Å"The Lay of the Were-Wolf† you would like to defend. 2. ) Analyze the story to find examples of logos, pathos, and ethos that support your character’s innocence. 3. ) Determine how to present your examples in a persuasive argument. 4. Write a three-paragraph â€Å"closing argument† for the trial that will persuade the jury that your character is not a monster. a. ) Paragraph #1 – logos b. ) Paragraph #2 – pathos c. ) Paragraph #3 – ethos Julius Caesar Recordings: a read-along for each act. Enjoy! Act I, Scenes i, ii, iii https://sas. elluminate. com/site/external/jwsdetect/playback. jnlp? psid=2012-01-23. 1812. M. 18C7F05BEF4B1A91008CFEA56749A1. vcrsid=679 Act II, Scenes i, ii, iii, iv https://sas. elluminate. com/site/external/jwsdetect/playback. jnlp? psid=2012-02-03. 107. M. 18C7F05BEF4B1A91008CFEA56749A1. vcrsid=679 Act III, Scenes i, ii, iii https:// sas. elluminate. com/p. jnlp? psid=2012-02-07. 0726. M. 18C7F05BEF4B1A91008CFEA56749A1. vcrsid=679 Acts IV V https://sas. elluminate. com/p. jnlp? psid=2012-02-07. 0817. M. 18C7F05BEF4B1A91008CFEA56749A1. vcrsid=679 Brutus’s Funeral Speech: http://www. youtube. com/watch? v=ab68AjRMKmA Antony’s Funeral Speech: http://www. youtube. com/watch? v=Zd9BLib8448 Materials from Live Lesson and Play in original language: http://vimeo. com/41708712 How to cite Betrayal: Rhetoric and Ethos Julius Caesar, Papers Betrayal Rhetoric and Ethos Julius Caesar Free Essays To get credit for the collaboration activity, Betrayal 01, 02, 04, 05, and 06: A. ) Submit this attachment in A Collaboration Process. Then copy and paste the below information in the student comment area of A Collaboration Product and Betrayal 01, 04, and 05: 1. We will write a custom essay sample on Betrayal: Rhetoric and Ethos Julius Caesar or any similar topic only for you Order Now Date you attended the session. 2. At least 3 sentences explaining how Shakespeare’s story about Julius Caesar is different than what really (historically) happened in Caesar’s life. 3. Give examples of the three persuasive techniques from either Antony’s or Brutus’s speech. logos, pathos, and ethos) 4. Give an example of one traitor and one patriot with supporting examples from the play. 5. At least 3 sentences explaining what you did in the session so that someone who did not attend would have an understanding of it. 6. At least 3 sentences evaluating how well your group worked together to accomplish your task. B. ) Submit this in Betrayal 02: 1. Complete the Lesson 2 Quiz. For the essay questions, you may respond, â€Å"I attended the Betrayal Live Lesson on __________ (date). C. ) Schedule Betrayal 6 DBA as we still need to complete that on the phone. If you are an honors student, complete the honors assignment before the dba. D. ) If you are an honors student, complete lesson 8. Lesson 8 Assignment 1. ) Choose which character from â€Å"The Lay of the Were-Wolf† you would like to defend. 2. ) Analyze the story to find examples of logos, pathos, and ethos that support your character’s innocence. 3. ) Determine how to present your examples in a persuasive argument. 4. Write a three-paragraph â€Å"closing argument† for the trial that will persuade the jury that your character is not a monster. a. ) Paragraph #1 – logos b. ) Paragraph #2 – pathos c. ) Paragraph #3 – ethos Julius Caesar Recordings: a read-along for each act. Enjoy! Act I, Scenes i, ii, iii https://sas. elluminate. com/site/external/jwsdetect/playback. jnlp? psid=2012-01-23. 1812. M. 18C7F05BEF4B1A91008CFEA56749A1. vcrsid=679 Act II, Scenes i, ii, iii, iv https://sas. elluminate. com/site/external/jwsdetect/playback. jnlp? psid=2012-02-03. 107. M. 18C7F05BEF4B1A91008CFEA56749A1. vcrsid=679 Act III, Scenes i, ii, iii https://sas. elluminate. com/p. jnlp? psid=2012-02-07. 0726. M. 18C7F05BEF4B1A91008CFEA56749A1. vcrsid=679 Acts IV V https://sas. elluminate. com/p. jnlp? psid=2012-02-07. 0817. M. 18C7F05BEF4B1A91008CFEA56749A1. vcrsid=679 Brutus’s Funeral Speech: http://www. youtube. com/watch? v=ab68AjRMKmA Antony’s Funeral Speech: http://www. youtube. com/watch? v=Zd9BLib8448 Materials from Live Lesson and Play in original language: http://vimeo. com/41708712 How to cite Betrayal: Rhetoric and Ethos Julius Caesar, Essay examples

Things Fall Apart Essays (660 words) - Postcolonial Literature

Things Fall Apart Things Fall Apart 2-Pager Essay All good aspects of humanity come unraveled as Achebe takes a story of a man and his society and stomps on it with tragedy. Uncontrollable forces are behind the things that unmistakably come crashing down in the end to reveal a totally mutual unhappy feeling. As life goes, everything appears to be fine and normal and everyone is getting along, having a good time, but it must come to an end sooner or later. Sooner or later everything starts to go in the opposite direction and all of a sudden everyone isnt that happy. Mistakes are made, ties are broken and ultimately people will fall down and things will fall apart. Man is a complex being that evolves and goes through many different things. There are a lot of different parts to Man, meaning all of these feelings, emotions, changes, and significant actions that they may take. Man reacts in different ways to different things and they are always subject to make mistakes. Humans were made to do so living a life to their best ability and learning by what they do wrong. People fall and they get hurt or bruised and they cant do anything but suck it up and try again. Sometimes what they need is to be taught a lesson, kicked out, or sent back to the beginning. The truth is that people are what they make of themselves. They get together and they make these societies that is good to a certain extent but they really mean trouble because of the way they work. In a matter of time, corruption will take place in the midst of these normal people just trying to work together in peace because somewhere, a mistake will be made and someone will have to pay. It is a viscous cycle, the way things work. Everything seems like it needs to go perfectly but that is all wrong and when that kind of thing is worried about, bad things start to happen. In Things Fall Apart, the main character lives a good, wholesome life, leading as a successful yam-farmer and doing what he does best in his society in Africa, but something goes terribly wrong and things begin to turn away from him. He begins to fall and he soon finds himself looking at banishment from his own community. What had he done to make this happen? He heads into starting over, trying to get his feet back on the ground and everything goes his way for awhile. But, you guessed it, things will eventually turn on him again because of the mere fact that most, or at least half, of the stories of the world since forever end in tragedy. That is just the way things are done and this man was existing to hit rock bottom and lose everything leading all the way to his final act of indignity. Where do people see the need to treat their lives like a chore, thus causing them pain and unnecessary heartache? It is indeed possible, if one would open their eyes, to be happy and live a life where they actually prevent the things from falling apart so badly where there is no turning back. Society will always beat people down and hurt them while putting endless amounts of strain on them and, quite simply, these people just need to stick together and be stronger because otherwise someone will snap and things will go wrong. It makes sense to relax and play the cards as they lay or all thats left will be a big jumbled up mess that could have easily been prevented. As one reaches the end of the line, a seemingly reasonable thing to do would be to just let history repeat itself but that would be the biggest mistake of all and turn everything upside down into a big fat tragedy. English Essays

Fragmentary Sentences and Sentence Fragments

Fragmentary Sentences and Sentence Fragments Fragmentary Sentences and Sentence Fragments Fragmentary Sentences and Sentence Fragments By Mark Nichol A sentence can be fragmentary, but it shouldn’t be a fragment. What’s the difference? Writers should distinguish between fragmentary sentences and sentence fragments. The following sentences are fragmentary: â€Å"A virtuoso performance? Some virtuoso.† Despite the absence of a subject and a verb, which are considered standard components of a sentence, the reader fills in the missing parts: (â€Å"[Do you call that] a virtuoso performance? [That musician is] some virtuoso.†) A sentence fragment, by contrast, is usually a dependent clause formatted as if it were a complete sentence, such as the second sentence in the following passage: â€Å"I went to the store. Because I need to buy some toiletries for my trip.† The form shown in the second sentence isn’t necessarily always wrong; it’s appropriate as a response in colloquial dialogue: â€Å"Why did you go to the store?† â€Å"Because I need to buy some toiletries for my trip.† Otherwise, however, it’s erroneous. It’s possible, too, for a complete sentence to be misconstrued as a sentence fragment because of a simple error such as omission of punctuation. For example, â€Å"Before I was inclined to agree† is a sentence fragment, because the words do not constitute a complete thought; no useful information has been conveyed. The implication is that a condition will be described: â€Å"Before I was inclined to agree, I needed more proof.† If, however, before is supplied as an adverbial tag, followed by a comma (â€Å"Before, I was inclined to agree†), the wording becomes a coherent statement indicating that in the past, the writer would likely have agreed with something. Presumably, a sentence will follow with a similarly constructed reversal written in the present tense (â€Å"Now, I’m not so sure†). However, fragmentary sentences are valid. Besides the commentary form, shown above in the examples about the alleged virtuoso, they may take the form of interjections (â€Å"Whew!† â€Å"How sad!† â€Å"What a nightmare!†), expressions (â€Å"Good job!† â€Å"So long!†), and partial imperatives (â€Å"To the castle!†) Though, of course, exclamation points are not required in fragmentary sentences, they are common, and note that such sentences are considered colloquial and should be used with caution in formal writing. You with me? Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Style category, check our popular posts, or choose a related post below:Coordinating vs. Subordinating ConjunctionsThe Letter "Z" Will Be Removed from the English AlphabetHow to Style Titles of Print and Online Publications

Viking Social Structure - Living in a Norse World

Viking Social Structure - Living in a Norse World Viking social structure was highly stratified, with three ranks or classes which were written directly into Scandinavian mythology, as slaves (called thrall in Old Norse), farmers or peasants (karl), and the aristocracy (jarl or earl). Mobility was theoretically possible across the three strata- but in general, slaves were an exchange commodity, traded with the Arab caliphate as early as the 8th century CE, along with furs and swords, and to leave slavery was rare indeed.   That social structure was the result of several changes within Scandinavian society during the Viking age. Key Takeaways: Viking Social Structure The Vikings in and outside of Scandinavia had a three-tier social structure of slaves, peasants, and elites, established and confirmed by their origin myth.The earliest rulers were military warlords called drotten, who were selected from warriors based on merit, only in power during wartime, and subject to assassination if they gained too much power.  Peacetime kings were selected from the elite class and they traveled throughout the region and met people in halls built in part for that purpose. Most provinces were largely autonomous of the kings, and the kings were also subject to regicide. Pre-Viking Social Structure According to archaeologist T.L. Thurston, Viking social structure had its origins with the warlords, called drott, which had become established figures in Scandinavian society by the late 2nd century. The drott was primarily a social institution, resulting in a pattern of behavior in which warriors selected the most adept leader and pledged fealty to him. The drott was an ascribed (earned) title of respect, not an inherited one; and these roles were separate from the regional chieftains or petty kings. They had limited powers during peacetime. Other members of the drotts retinue included: drang or dreng- a young warrior (plural droengiar)  thegn- a mature warrior (plural thegnar)  skeppare- captain of a chiefly vesselhimthiki- housekarls or the lowest rank of elite soldiersfolc- the population of a settlement Viking Warlords to Kings Power struggles among Scandinavian warlords and petty kings developed in the early 9th-century and these conflicts resulted in the creation of dynastic regional kings and a secondary elite class which competed directly with the drotts. By the 11th century, Late Viking societies were led by powerful, aristocratic dynastic leaders with hierarchical networks including lesser religious and secular leaders. The title given to such a leader was that of respect rather: old kings were frea, meaning respected and wise; younger ones were drotten, vigorous and warlike. If an overlord became too permanent or ambitious, he could be assassinated, a pattern of regicide which continued in Viking society for a long time.   An early important Scandinavian warlord was the Danish Godfred (also spelled Gottrick or Gudfred), who by 800 CE had a capital at Hedeby, inherited his status from his father and an army set to attack his neighbors. Godfred, probably overlord over the federated south Scandinavia, faced a powerful enemy, the Holy Roman Emperor Charlemagne. But a year after victory over the Franks, Godfred was assassinated by his own son and other relations in 811. Viking Kings Most Viking kings were, like warlords, chosen based on merit from the earl class. The kings, sometimes called chieftains, were primarily itinerant political leaders, who never had any permanent role over the whole realm. The provinces were almost entirely autonomous, at least until the reign of Gustav Vasa (Gustav I of Sweden) in the 1550s.   Each community had a hall where political, legal and perhaps religious matters were dealt with, and banquets were held. The leader met his people in the halls, established or reestablished bonds of friendship, his people swore oaths of allegiance and gave the leader gifts, and proposals of marriage were made and settled. He may have held a high priest role in cultic rituals.   Norse Halls Archaeological evidence concerning the roles of jarl, karl, and thrall is limited, but medieval historian Stefan Brink suggests that separate halls were constructed for the use of the different social classes. There was the house of the thrall, the banqueting hall of the peasant, and the banqueting hall of the nobleman.   Brink notes that in addition to being places where the itinerant king held court, halls were used for trade, legal, and cultic purposes. Some were used to house specialized craftsman in high-quality forging and skilled handicrafts or to present cult performances, attendance by specific warriors and housecarls, etc.   Archaeological Halls The foundations of large rectangular buildings interpreted as halls have been identified in numerous sites through Scandinavia and into the Norse diaspora. Banqueting halls ranged between 160–180 feet (50–85 meters) long, and 30–50 ft (9–15 m).  Ã‚  Some examples are: Gudme on Fyn, Denmark, dated to 200–300 CE, 47x10 m, with ceiling beams 80 cm in width and equipped with a double doorway, located east of the Gudme hamlet.  Lejre on Zealand, Denmark, 48x11, thought to represent a guild hall; Lejre was the seat of Viking age kings of ZealandGamla Uppsala in Uppland, central Sweden, 60 m long built on a man-made platform of clay, dated to the Vendel period CE 600–800, located near a medieval royal estateBorg on Vetvagoy, Lofoten in northern Norway, 85x15 m with cultic thin gold plates and imports of Carolingian glass. Its foundations built over an older, slightly smaller (55x8 m) hall dated to the Migration Period 400–600Hogom in Medelpad, 40x7–5 m, includes a high seat in the house, an elevated base in the middle of the building, thought to have had several purposes, high seat, banqueting hall room and assembly hall   Mythic Origins of Classes According to the Rigspula, a mythic-ethnologic poem collected by Saemund Sigfusson at the end of the 11th or beginning of the 12th century CE, Heimdal, the sun god sometimes called Rigr, created the social classes at the beginning of time, when the earth was lightly populated. In the tale, Rigr visits three houses and engenders the three classes in order.   Rigr first visits Ai (Great Grandfather) and Edda (Great Grandmother) who live in a hut and feed him husk-filled bread and broth. After his visit, the child Thrall is born. The children and grandchildren of Thrall are described as having black hair and an unsightly countenance, thick ankles, coarse fingers, and of being a low and deformed stature. Historian Hilda Radzin believes this is a direct reference to the Lapps, who were reduced to a state of vassalage by their Scandinavian conquerors. Next, Rigr visits Afi (Grandfather) and Amma (Grandmother), who live in a well-built house where the Afi is making a loom and his wife is spinning. They feed him stewed calf and good food, and their child is called Karl (freeman). Karls offspring have red hair and florid complexions.   Finally, Rigr visits Fadir (Father) and Modir (Mother) living in a mansion, where he is served roast pork and game birds in silver dishes. Their child is Jarl (Noble). The nobles children and grandchildren have blond hair, bright cheeks, and eyes as fierce as a young serpent. Sources Brink, Stefan. Political and Social Structures in Early Scandinavia: A Settlement-Historical Pre-Study of the Central Place. TOR 28 (1996): 235–82. Print.Cormack, W. F. Drengs and Drings. Transactions of the Dumfriesshire and Galloway Natural History and Antiquarian Society. Eds. Williams, James and W. F. Cormack, 2000. 61–68. Print.Lund, Niels. Scandinavia, c. 700–1066. The New Cambridge Medieval History c.700–c.900. Ed. McKitterick, Rosamond. Vol. 2. The New Cambridge Medieval History. Cambridge, England: Cambridge University Press, 1995. 202–27. Print.Radzin, Hilda. Names in the Mythological Lay Rigspula. Literary Onomastics Studies 9.14 (1982). Print.Thurston, Tina L. Social Classes in the Viking Age: Contentious Relations. C. Ed. Thurston, Tina L. Fundamental Issues in Archaeology. London: Springer, 2001. 113–30. Print.

Nestle Essay Example | Topics and Well Written Essays - 250 words

Nestle - Essay Example Nestle’s Nescafe, the leading coffee brand, is drank in almost every country and the company owns scores of other household names, including confectionery such as Kit Kat, Smarties, Yorkie and Aero along with Perrier water, in the UK. Hot Pockets in the US, Baeren Marke in Germany, Mucilon in Brazil, Orion chocolate in Czechoslovakia and Slovakia and Maggi seasoning in Asia are among its well-known brand names. (Johnston) The past two years has seen Nestle’s Maggi ready-mix seasoning targeting Asian ethnic cuisine with mixes for sautees, broths and others. The new Cranberry Raisenets was launched in March last year as an addition to the Nestle Raisinets family. To take care of distribution Nestle has 406 subsidiaries and offices in 104 countries and joint ventures with Coca-Cola, General Mills, L'Oreal and Fonterra, not to include several other corporations not as large (â€Å"Nestle SA: Who, Where, How Much?†) Nestle aggressively promotes its products and is hig hly visible in energy drinks and supplements for athletes. In developing countries where it sources some of its raw materials, Nestle is highly visible in events which build up the goodwill and image it has established over the decades of doing its businesses. Nestle’s Milo in Asia has built a solid image as an energy drink indispensable in the growth of young aspiring athletes.

LITERARY ANALYSIS OF THE TELL-TALE HEART OF EDGAR ELLEN POE Essay

LITERARY ANALYSIS OF THE TELL-TALE HEART OF EDGAR ELLEN POE - Essay Example In the very start of the story, the narrator accepts that he has grown nervous and oversensitive to the environment around him. He considers it a disease but is happy that it has made his senses more responsive. He says, â€Å"Above all was the sense of hearing acute. I heard all things in the heaven and in the earth† (Poe). The narrator explains that his hearing is too much sharp. He uses elaborative remarks to express the sharpness of his hearing. He further informs that this proves that he is not mad. However, being sharp in hearing does not prove him to be not mad as there is no association between being mad or excellent hearing power. He is not mad, but he has some kind of psyche issue, which encourages him to kill an innocent person. He is disturbed by the stare of the old man and starts considering himself in danger due to which, he decides to eradicate this threat (Ki 30). He regards himself witty but he is bothered by the staring eye of the old man. He considers him s trong because of his eye. He narrates the whole story as to how he visits the old man at midnight and moves so slowly and cautiously that he makes no noise at all. However, he continuously monitors the sleeping routine of the old man but every time, he gets disappointed and is unable to attack because he is unable to see the old man’s eye opened (Ki 31). Eighth day when he was judging the old man sleeping, he made a slight noise unintentionally that made the old man frightened. He was unable to sleep again. The narrator enjoyed the threat felt by the old man and acted as a wild beast waiting for the victim to be fully terrorized. The old man was aware of his coming death, which intimidated him. The narrator took a long time analyzing the old man’s situation. He only allowed a minute beam of lamp light directed towards the old man’s eye. During his noticing the old man’s eye, he started hearing intense heart beat and according to