Essays Tagged: "Tin"

Gold mining Techniques

heavier gold was separated from the dirt that was collected. Hargraves and his associates used the tin panning dish to separate the gold grains from the sediment, but later on in 1851, the cradle was ... mes, they worked in a team of four, because often the shelves became coated with mud, and was preventing the gold from being caught.Later on, cradles were replaced by sluice boxes or Long Toms. A numb ...

(3 pages) 60 0 4.5 Jun/1996

Subjects: Science Essays > Earth Sciences > Geology & Geosciences


hammer copper into things they wanted. Around 3500 B.C, People firstlearned how to melt copper with tin to make bronze. So the period between3000 B.C and 1100 B.C became known as the bronze age.Today, ... to protect them from falling rocks. Lamps are also attached tothese helmets in case some of the lighting in the mine goes out leaving aminer stranded in the dark. One of the biggest problems with mini ...

(3 pages) 45 0 4.0 Feb/1997

Subjects: Science Essays > Chemistry

Software and copyright.

d more important. From thousands of bytes on miles of paper to millions of bytes on a thin piece of tin foilsandwitched between two pieces of plastic, software has played an important part in the worl ... ndustry inflates.There are two categories of intellectual property. The first one is composed of writing, music, and films,which are covered by copyright. Inventions and innovations are covered by pat ...

(11 pages) 224 0 4.8 Jun/2003

Subjects: Science Essays > Computer Science > Computer Ethics

Peace Like A River

unes. To furnish the well being of his family and find his son, Davy, Jeremiah Land followed his instincts and faith. Letting God lead the way, Jeremiah is able to guide his family through his faith, ... t, Lord, do this; send us to Davy" (128). On Christmas day, the Land family received a trailer from Tin Lurvey, a man that only someone with a heart like Jeremiah's, could withstand. Ironically, the L ...

(3 pages) 32 0 4.3 Apr/2004

Subjects: Literature Research Papers

A Brief History of the Periodic Table

periodic table were made in antiquity, with the discovery of obvious elements such as gold, silver, tin, copper, lead and mercury. In 1649, the first scientific discovery of an element occurred in 164 ... tables contain the element's atomic diameter/radius, common valence numbers or oxidation states, melting/boiling point, density, specific heat, stable/radioactive isotopes, type of magnetism, and othe ...

(3 pages) 48 0 4.8 Apr/2004

Subjects: Science Essays > Chemistry

Unique vs. not unique

ogitech is made up of plastic and it is hard. The long eye, which is a can food, the can is made of tin and it is hard. For the typewriter ribbon, it put inside a plastic box to protect the ribbon. Th ... re are words printed on the plastic bag but not on the Trojan horse. Also, the Trojan horse is imitating the real horse to make it, but not for the other five items. Book is a book, can food is can fo ...

(6 pages) 43 0 2.4 Oct/2004

Subjects: Literature Research Papers > Creative Writing

Personal Response - Brampton Street Race Drivers Jailed for Killing Mom-to-be

I fully agree with Mr. Yu Tin that Mr. Braithwaite did not get what he deserved. The collision happened due to the carelessnes ...

(1 pages) 26 1 2.0 Nov/2004

Subjects: Literature Research Papers > Creative Writing


need to get all my required equipment. I will have too had the same amount of water at the same starting temperature. The same length of each material and the tin must be covered same length down with ... of water we had to also have the same length of material and it had to cover the same width of the tin.Convection:Convection is the flow of heat a hot region to a cool region, as opposed to the micro ...

(3 pages) 17 0 0.0 Feb/2005

Subjects: Science Essays > Chemistry

The Lost Opportunity that was Indochina

Kra Peninsula, the last little bit of land hanging on down there, would be scarcely defensible. The tin and the tungsten that we so greatly value from that area would cease coming. But all India would ... hat the French are doing. So when the United States votes $400 million to help that war we're not voting for a give-away program; we're voting for the cheapest way that we can prevent the occurrence o ...

(9 pages) 32 0 1.0 Feb/2006

Subjects: History Term Papers > North American History

"Salvation" by Langston Hughes

s also what I did a long time ago-the day I lied to my friend's Mom and Dad about him. (His name is Tin) He did not pass the final examination to high school (in Viet Nam, students have to take a test ... nside his mind is just a hoax. Nothing happens and Jesus did not come to save him. I did not say to Tin like Langston's Aunt told him before he took the test. I kept thinking that he had studied very ...

(3 pages) 80 0 0.0 Aug/2006

Subjects: Literature Research Papers > North American

If you play with fire, you will burn.

as that it was going to happen Sunday. Sunday noon to be precise; that gave me exactly 24 hours starting from now. I would have to start praying soon. Who shall I pray for? The Jews in Warsaw? But wha ... commander who had us peering through the mist for every hour of the day? It must seem like I was destined for this 'soon'. Just the thought of twelve of us posted in our own choking little cave in the ...

(1 pages) 12 0 3.0 Feb/2007

Subjects: Literature Research Papers > Creative Writing


Nomenclature To test the reactions of Tin(ii) and Tin(iv) compunds. To test the reactions of Iron(ii) and Iron(iii) compounds. And to conv ... (4) Iron(iii) chloride Potassium ferricyanide Test Tube stand Iron(ii) sulphateCopper(ii) Sulphate Tin(ii) chloride Sodium Hydroxide Ammonium Thiocyanate Tin(iv) chloride Hydrogen Peroxide Distilled ... er(ii) Thiocyanate Ammonium Sulphide Ammonium Hydroxide Sodium Sulphite Observations : Before After Tin (ii) Chloride small white crystals Produced a bad rotten egg smelled Distilled Water clear trans ...

(3 pages) 1813 0 0.0 May/2001

Subjects: Science Essays > Chemistry

Short Story (winner)

e door and a big fury dog ran in, Joe walked back into the kitchen, opened the pantry and got out a tin of dog food, as Joe opened the tin he walked out to sparky's kennel, Sparky followed with great ... ked out to sparky's kennel, Sparky followed with great anticipation. As Joe put the contents of the tin into Sparky's dog bowl, Joe realised what a wonderful day it was. He was so glad that he took th ...

(5 pages) 690 0 0.0 Jul/2001

Subjects: Businesss Research Papers

Johannes Gutenberg

rent. So he moved to Strasbourg, and here he made his first experiments with moveable type, and printing.You see Gutenberg had a new idea, his idea was to utilize the techniques of casting, punchcutti ... the fonts of today's world. His charaters are made from a blend, or an alloy of lead, antimony, and tin, in fact that mixture is still used to produce prints by modern printing companies. He also prin ...

(2 pages) 14 0 0.0 Aug/2001

Subjects: History Term Papers > European History

Density Lab

to take a graduated cylinder and put any amount of water in it until you feel necessary to stop putting water in it. Then you record the amount of water. Mark it with a marker so you know where the l ... ding that the first object we measured came to be 5.9 g/cm cubed which means that it is most likely tin. The second object we used was 7.5 g/cm cubed which most likely is iron and the third object cam ...

(1 pages) 8 0 0.0 Nov/2001

Subjects: Science Essays > Chemistry

The Tale Tell Heart

to kill him.On the eighth night, when she was about to open the lantern, her hand slipped upon the tin fastening, and he woke up saying, "Who's there?" She could tell he was very frightened. Then she ... icers arrived and she heard a ringing in her ears. It kept growing louder and louder. It was the beating of the old man's heart. Finally, she couldn't take the guilt or the heart beating anymore and a ...

(1 pages) 450 0 0.0 Nov/2001

Subjects: Literature Research Papers

The Divine Wind

world "“ a place where the Pearlers met in the bars at night, where the children sat around in tin sheds turned into a cinema and where dreams were made "“ and forgotten.How do Broome and Ha ... and forgotten.How do Broome and Hart mix? They interact with each other, the character with the setting, and the setting with the character. Let's take an outside look at Hart. He is a strong boy, in ...

(3 pages) 1096 0 0.0 Nov/2001

Subjects: Literature Research Papers

Scarlet letter

ventually found a way to get out of the marriage without dishonoring her parents. She later married Tin Jong after she immigrated to the United States. They had three children: Winston, Vincent, and W ...

(1 pages) 404 0 0.0 Feb/2008

Subjects: Literature Research Papers > North American

Calling out Racism

aking over foreign countries or is it for the rich resources these countries had like rice, rubber, tin, etc. With Diem's regime coming around the Vietnamese people began to hate it more and mo ...

(2 pages) 520 0 0.0 Feb/2008

Subjects: History Term Papers > World History

Mouse trap buggy manufacturing plan

ile. Does the length fit the size specification?403Cut aluminum stripsAluminum strips (4), Hacksaw, Tin snipsAre there any sharp edges on the cut? Is the length of the two side pieces of aluminum the ... t? Is the length of the two side pieces of aluminum the same? Be careful when using the hacksaw and tin snips42 (11/04/08)Mark the mid point of the drilled area (corners) Aluminum pieces (4), Center p ...

(6 pages) 1081 0 3.0 Mar/2009

Subjects: Art Essays > Design Arts