Copper is one of the few metals that have been mined for more than 100 decades globally. According to M.G.C Wilson (1989) copper has been mined since the early 3000 BC in Cyprus. In the ancient times copper was used for making tools‚ weapons‚ ornaments and many household utensils. Copper is the third most widely used metal after aluminium (Al) and iron (Fe) because of its high durability (Doebrich et.al‚2009). In the Southern African region copper has been extracted by the early inhabitants long
Premium Ancient Egypt Iron Egypt
strokes per revolution‚ in addition with its small lightweight design; two stroke engines have a high power-to-weight ratio. Fig 1) Cross section of a two-stroke engine ’s barrel and crank case. How a Two-Stroke Engine Works Power Stroke Starting from the point where the spark plug
Premium Internal combustion engine Connecting rod
section of the officially enrolled senior nursing students in Nursing Research 2. One hundred thirty eight (138) senior nursing students were randomly chosen from the five (5) sections to answer the questionnaire. The questionnaire was prepared and validated by the 5 instructors. Then‚ it was distributed and answered by the selected students from the different sections officially enrolled in Nursing Research 2. Upon the retrieval of the questionnaire‚ all the data gathered were collated‚ tabulated
Premium Academia University Scientific method
chemical element copper‚ with Atomic Number 29‚ has been extensively used for thousands of years because of several primary properties that have dictated its use throughout history. Among them we can count durability‚ strength and‚ as a semi-noble metal‚ good resistance to corrosion. With a hardness of 3 on the Mohs scale‚ pure copper is relatively soft and malleable‚ which makes it an easy metal to work with. Analyses of artefacts from lithic civilizations have shown that native copper had not only
Premium Chemical element Metal Carbon
on a chair‚ Nathan creeps up from behind and whips the chair from under her. Alice falls to the ground and fractures her arm. TRESPASS TO PERSON BATTERY DEFINITION: The intentional and direct application of force to another person without that person’s consent. ELEMENTS OF BATTERY: iii) Physical contact iii) Physical contact ii) The Defendant’s act was under his control ii) The Defendant’s act was under his control ELEMENTS OF BATTERY ELEMENTS OF BATTERY iv) Without Plaintiff’s consent
Premium Tort law Legal terms Tort
SIMULATION FOREGROUND READING Back Bay Battery‚ Inc. Overview The battery industry is enormous‚ with worldwide revenues of approximately $45 billion. It is highly fragmented with at least 20 major manufacturers in each technology segment. Because of the wide range of applications of batteries‚ companies have tended to specialize in a particular technology or market application. Disposable batteries‚ such as the widely available carbon-zinc and alkaline cells‚ are available in standard sizes
Premium Rechargeable battery Lithium
Firstly‚ one similarity of assault and battery is that they both form the mens rea. For example‚ both intention and recklessness form mens rea. The mens rea of assault is content when the defendant intends to cause the victim to apprehend violence or does it recklessly. This can be found in the case of R v Savage (1991)‚ a woman threw a pint of beer over the victim’s head in a pub. The glass slipped out of her hand‚ smashed and cut the victims wrist. The victim was the defendant’s husband’s ex-girlfriend
Premium Marriage Woman Sexual intercourse
Battery Charger Kingsley Nwador ECT 598.001 Senior Project 10/15/08 A battery charger is a very unique and widely utilize device in the world today. Its applications spread from home consumers all the way to business owners and industrial workers. But what is a battery charger‚ one might ask. A none technical definition would be‚ a battery charger is a device used to recharger my batteries such as in my digital camera. Perhaps a better definition would be‚ a battery chager is a device
Premium Rechargeable battery Battery
Divya Nagendran Professor Patrick Crawford CHEM 122-04 27 January The Role of Zinc in My Life Chemistry plays a vital role in our daily life. We find chemistry in every object we see or touch. We could find chemistry in the food we eat‚ the air we breathe‚ our acne treatment cream and the list goes on. There is one chemistry element that is important in my daily life and its Zinc or Zn 2+. During my high school year‚ I’ve had problems with hair loss. Each day I would lose 100 to 125 strands
Premium Zinc
LET’S START WITH COPPER CHEMISTRY REPORT 2012 INTRODUCTION: The law of conservation of mass means that the atoms of an object cannot be created or destroyed‚ but can be moved around and be changed into different particles. This law says that when a chemical reaction makes two different atoms into a new product‚ the mass will be the same. Knowing this the mass of the copper should be the same at the beginning and at the end of the experiment. In this investigation we will see
Premium Chemistry Temperature Liquid