How does current vary with voltage in a light bulb Essay Example

How does current vary with voltage in a light bulb Essay In the metal inside of a wire the molecules are compact. Then when the current passes through it, it heats up the wire due to the electrons rubbing against the molecules in the wire when they either collide or skim past the molecules that are in the wire the higher the voltage is the more energy that is given to each electron so the faster it goes and the more friction it creates. So the electrons that are trying to pass through the wire at tremendous speed hit the vibrating molecules and slow the electrons down. Therefore the greater the vibration is greater the chance there is of the electrons getting slowed down. This is called resistance.Some metals are more resistant to others simply because some wires are more compact than others therefore dont vibrate as much therefore it doesnt slow the electrons down as much.The thickness and the length of a wire causes more resistance this is because if a wire is bigger there will be more metal inside of it therefore there will be more mole cules vibrating and then the electrons may hit more molecules vibrating and slows it down much much more.The resistance can be calculated by dividing the voltage by the current. It is this relationship I am trying to prove. This is ohms law. I have carried out a preliminary experiment on the resistance through a piece of wire that was 20cm long.IVVoltageThe power of an electrical current is measured in volts. The higher the voltage the more energy each electron is given so the more energy it has to use to as it is flowing around the circuit. The more batteries that are connected in a circuit the higher the voltage is. Also if there is a greater voltage across a bulb, the higher the current is flowing through it.CurrentCurrent is measured in amps; it is a measure of the flow of electrons that are presently going round a circuit. The higher the current is the greater the flow of electrons is. The current is measured with an ammeter an ammeter is connected in a circuit like so;The amme ter can be connected anywhere in a circuit because the current is the same all the way round. Putting the ammeter in the flow doesnt affect the flow. In amps a value that is smaller than an amp is called a Milliamp (MA) 1000 MA = 1ampHistory on Goerge OhmGoerge Ohm devised the relation ship between voltage and current. This was; Resistance = Voltage (V)/Current (A)There is also a way to work out the voltage and current by using the resistance and either the voltage or current and these are;Voltage (V) = Current (A) * ResistanceCurrent (A) = Voltage (V) / Resistance =The circuit below can be used to find how the current through a conductor depends on the voltage across it. The conductor in this case is a coil of nichrome wire measured at a length of 20cm kept at a steady temp.If you double the voltage by doubling the batteries the current doubles and so on. The voltage divided by current will always have the same value. This is Ohms law. All alloys obey ohms law as long as the temper ature is constant.Ohmic and non Ohmic conductorsHere are some Ohmic and none Ohmic conductors;A resistor is a none Ohmic conductor because it has a resistance which increases slightly when the temperature rises.A thermistor a none Ohmic conductor because has a high resistance when cold but low resistance when hot.A light dependent resistor is a non Ohmic conductor because has a high resistance in the dark but a low resistance in the light.A diode is a none Ohmic conductor because it has an extremely high resistance in one direction but low in the other.A wire is an Ohmic conductor but a bulb is not.Preliminary InvestigationThe purpose of the investigation is to prove Ohms law. This states that the current is directly proportional to the voltage as long as the temperature is constant. For instance if I doubled my 2nd result in the following table I should get the same outcome as I did for the fourth result.Method1. To set up a circuit like the one below. (The thicker part of the wire indicates the 20cm of nichrome wire.)2. Measure out an exact length of nichrome wire that is 20cm long 20swg and connect it to the circuit on the part on the diagram where the red line is.3. Set up a power pack and set it to 2 volts to start with4. Take accurate readings of 1 volt and higher5. Switch off the power pack after each reading so it can cool down6. Repeat 3 times at voltages 3, 4, 5 and 6.Results tableVOLTAGEVolts 1Volts 2Volts 3Average (Volts)2V0.960.960.960.963V1.811.811.821.814V3.003.003.003.005V3.883.903.913.906V5.145.185.185.17CURRENTCurrent 1Current 2Current 3Average (Current)2V0.620.620.620.623V1.161.161.171.164V1.891.891.881.895V2.402.412.402.406V3.113.123.123.12Average CurrentAverage VoltageEquationAnswer(2dp)Test 10.620.96R=V/I1.54Test 21.161.81R=V/I1.56Test 31.893.00R=V/I1.59Test 42.403.90R=V/I1.63Test 53.125.17R=V/I1.66GraphThe graph is on the next page.AnalysisFrom these results we can see that the resistance is constant. The voltage at test are i.e. 0.96V, when doubled gives a doubling in the current. This can be seen on the graph.On the graph for this experiment I have circled two points that are not on the line these would be points in the graph where the wire got too hot and therefore gave me a miscalculation this might be because the meters are not accurate.My preliminary work has proved that the wire obeys Ohms law, as long as the temperature is constant. You can see from the calculations of resistance that is relatively constant throughout the experiment only vary by 1/10 of an ohm at the higher voltages.From my results I can see that this is an Ohmic conductor because it follows ohms law.In the main investigation we will examine what happens in a light bulb and compare the two.PredictionFor the main experiment where you do the same experiment as the one we did in the preliminary experiment apart from we will be using a bulb instead of a wire.I predict that the bulb will not obey Ohms law because in order for a bulb to work ele ctricity is passed through a thin piece of wire (the filament) and the gases inside of a light bulb force the filament to burn brightly in order for it to light up a room so the temperature is never constant it is always rising. But as it happened twice in the previous experiment the wire got hot because I did not leave it long enough to cool down and therefore it gave me an inaccurate result therefore the temp wasnt constant. But with a bulb there is not a chance that it will be able to cool down unless you turn it off for a period of time but that would not be done in a house for it is not practical. So the filament will just keep getting hotter and hotter therefore giving you a result which will be correct to begin with where current is proportional to the voltage and then it will start flattening out because of the heat therefore I will have proved Ohms law, where the temperature must be constant so it does not increase resistance.MethodWhen I carry out this experiment I shall f ollow this procedure;1. I will set up a circuit so it looks like the diagram below.2. Set up a power pack and set it on 1 volt.3. Take a reading and write it on my results table then turn off the power pack for 10 seconds then turn it on and take another reading.4. I will repeat this until I have 3 results then repeat this on voltages 2-10 voltsI am using a power pack instead of batteries and a voltmeter so my readings will be more accurate.ResultsVoltageVolts 1Volts 2Volts 3Average (Volts)1V0.010.010.010.012V0.991.000.990.993V2.092.092.092.094V3.593.593.603.595V4.744.744.744.746V6.216.246.286.247V7.477.457.447.458V9.009.019.029.019V10.1010.1710.2110.1610V11.3311.3811.4111.37CurrentCurrent 1Current 2Current 3Average (Current)1V0.010.010.010.012V0.660.660.660.663V0.900.900.900.904V1.161.161.161.165V1.341.341.341.346V1.551.551.551.557V1.691.711.701.708V1.891.881.891.899V2.012.002.022.0110V2.142.132.152.14AveragesAverage VoltageAverage CurrentEquationResistance = Volts / CurrentResista nce (Ohms)1V0.010.010.01 / 0.011.002V0.990.660.99 / 0.661.503V2.090.902.09 / 0.902.324V3.591.163.59 / 1.163.095V4.741.344.74 / 1.343.536V6.241.556.24 / 1.554.027V7.451.707.45 / 1.704.388V9.011.899.01 / 1.894.769V10.162.0110.16 / 2.015.0510V11.372.1411.37 / 2.145.31AnalysisOn the graph I have drawn some lines on top of the curve and labeled them A and B, if the bulb was an Ohmic conductor there would be a straight line in stead of a curve because you should be able to double A (voltage 4, 1.2 amps) and by doubling it you get voltage 8, 2.4 amps and that would be on the straight line if it was an Ohmic conductor and obeying Ohms law but this is not an Ohmic conductor because if I doubled the voltage from 4 to 8 it gives you a current of 1.725.On my preliminary experiment I used a 20cm long piece of nichrome wire. The nichrome wire didnt heat up as quickly as a filament and it cooled down quicker than the filament so my results did not get affected as much from the heat this is why I g ot a fairly straight line with only a couple of points at most 1/10 off the line.My prediction was correct because the light bulb is not an Ohmic conductor because the heat is increasing the resistance more and more as the experiment goes on and when I pass 10 volts through it the temperature rose therefore the resistance rose. As I explained in my preliminary work where the heat increases the molecules vibration and therefore increasing the chances that the electrons will collide with them.A light lights up because you are passing a current through a thin piece of wire (the filament) and the gases in side of the bulb forces it to glow brightly. There is no way of controlling the temperature in side of a light bulb so the heat increase resistance by forcing the molecules inside of the wire to vibrate therefore slowing the electrons down and increasing resistance and proving Ohms law only works when the temperature is constant. That heat increase resistance therefore current is not p roportional to the voltage.On my results table where I worked out there resistance the does not seem to be any pattern in my results only that they rise every time. The results show that the increase of resistance is very erratic where it can rise about 0.70 ohms at on result to another and about 0.30 at another result. This does not prove anything.Therefore I conclude that when you pass a current through a wire of some sort and it heats up and it will increase resistance. But if the wire cools down the molecules do not have the energy to vibrate therefore there is a minimal chance that the electrons will collide into them and it lowers resistance therefore when Ohms law is present current is proportional to voltage just as it was in my preliminary experiment.EvaluationThe experiment that I have carried out is good enough to produce reliable results but I think that it would be more accurate by repeating it a few more times and instead of repeating 1 volt three times then moving on to the next one that I should of done 1 volt once then 2 volts and when I got to 10 volts started it again and done it that way three times and also the results at the end began to go further and further away on the same voltage.All of the results that I did fit the pattern none where really off but I could of got them better if I had left the bulb to cool down a little longer and for a set time. I think that my results on both experiments the preliminary one and the main one are good enough and reliable enough to support my conclusion.The only improvements that I can think of for further work is to take three or fourth decimal places instead of just 2, to have a set time to leave my bulb to cool down for say 30second, to repeat the experiment up to 15volts to give you a bit more of a bigger picture, by repeating 1 volt three times then moving on to the next one that I should of done 1 volt once then 2 volts and when I got to 10 volts started it again and done it that way three time s, also to use more scientific meters to record my results with and also by repeating the experiment with different light bulbs to see if you would get different results. The only reason that I did not make these changes is because I did not have enough time in the lesson to do so or the extra equipment if I did have these I think my results would be much more accurate.

Free Essays on Developing A Sex-Ed Program For Adolescents

Developing a Sex-Ed program for Adolescents Sex Education in the schools can be seen as a relatively straightforward biology lesson, albeit one that sets off more than a few nervous giggles in the back row. It can also be seen in terms of public health, as the key to preventing AIDS, increase awareness about STDs, improve decision making about teenage pregnancy. Sex education should be a program that explains sexuality in the context of a value system that emphasizes love and marriage. Adolescents need the right information to help protect themselves. The US has more than double the teenage pregnancy rate of any western industrialized country, with more than a million teenagers becoming pregnant each year. Teenagers have the highest rates of sexually transmitted diseases (STDs) of any age group, with one in four young people contracting STD by the age of 21(health class). STDs, including HIV, can damage teenagers' health and reproductive ability. And there is still no cure for AIDS. Knowledge alone is not enough to change behaviors. Programs that rely mainly on conveying information about sex or moral precepts-how the body's sexual system functions, what teens should and shouldn't do-have failed. So we need programs that focus on helping teenagers to change their behavior-using role-playing, videos, lectures, and exercises that strengthen social skills. Too often statements of values ("my children should not have sex outside of marriage") come wrapped up in misstatements of fact ("sex education doesn't work anyway"). If there is any parental concern or objection, the teacher should send a letter home describing the program and its objectives. If parents still have concerns, invite them in to talk about it and try to find an alternative if necessary. Should we do everything possible to suppress teenage sexual behavior, or should we acknowledge that many teens are sexually active, and prepare them against the negative co... Free Essays on Developing A Sex-Ed Program For Adolescents Free Essays on Developing A Sex-Ed Program For Adolescents Developing a Sex-Ed program for Adolescents Sex Education in the schools can be seen as a relatively straightforward biology lesson, albeit one that sets off more than a few nervous giggles in the back row. It can also be seen in terms of public health, as the key to preventing AIDS, increase awareness about STDs, improve decision making about teenage pregnancy. Sex education should be a program that explains sexuality in the context of a value system that emphasizes love and marriage. Adolescents need the right information to help protect themselves. The US has more than double the teenage pregnancy rate of any western industrialized country, with more than a million teenagers becoming pregnant each year. Teenagers have the highest rates of sexually transmitted diseases (STDs) of any age group, with one in four young people contracting STD by the age of 21(health class). STDs, including HIV, can damage teenagers' health and reproductive ability. And there is still no cure for AIDS. Knowledge alone is not enough to change behaviors. Programs that rely mainly on conveying information about sex or moral precepts-how the body's sexual system functions, what teens should and shouldn't do-have failed. So we need programs that focus on helping teenagers to change their behavior-using role-playing, videos, lectures, and exercises that strengthen social skills. Too often statements of values ("my children should not have sex outside of marriage") come wrapped up in misstatements of fact ("sex education doesn't work anyway"). If there is any parental concern or objection, the teacher should send a letter home describing the program and its objectives. If parents still have concerns, invite them in to talk about it and try to find an alternative if necessary. Should we do everything possible to suppress teenage sexual behavior, or should we acknowledge that many teens are sexually active, and prepare them against the negative co...

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Scaffolding as teaching technique Research Paper

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Database System Development Exam

Database System Development Exam Adam Warsame Course: FDSc Computing Module Title: Database Systems Assignment Title: Database Systems Assessment Introduction The task for this assignment is to develop a database for a local garden centre. To understand the system better and what way it should operate; it was a good idea to review other examples of databases online. From these reviewed examples, was able to gather a rough understanding of what the database should withhold. Analysis The following tables were chosen for this database: Customers:- Customers table is used to hold all the vital information about a customer, such as: full name, address, email and feedback/reviews. Delivery:- Delivery table is used to withhold all the necessary information needed such as shipping date, order information, arrival date and delivery company. Plants:- Plants table is used to store all the information about plants such as popular name, type, features, description etc. Orders:- Orders table is used to hold all the information needed such as order date, delivery information, plant quantities and total price. The following tables (including attributes) were required as a minimum: Customers table; Full Name Address Email Feedback Deliveries table; Order information Shipping date Arrival date Delivery company Plant table; Garden Plant case Latin name Popular name Colour of foliage Colour of flowers Flowering period Height Spread Type of plant Full description and more Orders table; Order date Delivery information Plants quantities Plant prices The database will let staff/admins have a range of rights over the system and will be able to do things such as, edit plant list, create plant list, delete plant list, oversee customer details, monitor orders and check delivery information. 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Entity-Relational Model Normalisation 1NF 1NF is the most basic of all the normalisation processes but 1NF can only work if all tables have different entity types. Meaning, no relationships between 2 or more can be developed; otherwise it would break the rules for 1NF. The other rule is that all tables need a primary key, or else that would also go against the rules. 2NF One of the rules within 2NF process is that, only 1 row can have the same details stored. For example, when searching for a postcode, it would also show the town, county etc. To get around this then postcode will need to be created in its own table (postcode being the primary key also a foreign key in other tables) thus completing the need for relations in 2NF. 3NF Values that have the potential to be changed, in a 3NF database, need to be within a table, as a single order may alter the stock levels by creating an order. If not removed, the normalisation rules cannot be met. Within a 3NF system there shouldn’t be any rows/columns that have the exact same information; this is because it should go into a new table. SQL statements for implementation and manipulating database 1) Database: `199209-garden` 2) CREATE TABLE IF NOT EXISTS `Customers` ( `Customer_ID` int(11) NOT NULL AUTO_INCREMENT, `Full Name` varchar(25) NOT NULL, `Address` varchar(255) NOT NULL, `Email` varchar(50) NOT NULL, `Feedback ` varchar(255) DEFAULT NULL, PRIMARY KEY (`Customer_ID`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=13 ; data for table `Customers` 3) INSERT INTO `Customers` (`Customer_ID`, `Full Name`, `Address`, `Email`, `Feedback/Reviews`) VALUES (1, Jo Millan, 7 Windsor Road, CHESEFIELD, FH1 9LA, [emailprotected], NULL), (2, Harry Hugo, 4 Colywn Bay Road, WANEKE, BA91 8FS , [emailprotected], NULL), (3, Alice Payton, 2 Moor Way, PRESTATYN, NF44 1GB, [emailprotected], NULL), (4, Paul Hudson, 19 Johnno Rd, POSSING, PV33 0FLL, [emailprotected], NULL), (5, Tessa Godknock, 79 Butler Lane, HAHISON, DC10 5LF, [emailprotected], NULL), (6, Abdi Armed, 41 Wool Rd, GONZAGAE, BF35 64S, [emailprotected], Nice website!), (7, Masteran Katrina, 3 Bopping Rd, BEALUMONT, FP3 8TE, [emailprotected], NULL), (8, Ryan Starr, 99 Trevor Lane, LOUIS, ZX25 4GL, [emailprotected], NULL), (9, Ben Augustine, 61 Llaneli Street, BALLYMENA, OA38 8FB, [emailprotected], NULL); ); CREATE TABLE IF NOT EXISTS `Delivery` ( `Delivery_ID` int(11) NOT NULL AUTO_INCREMENT, `Shipping Date` datetime NOT NULL, `Delivery Information` varchar(255) NOT NULL, `Arrival Date` datetime NOT NULL, `Delivery Company` varchar(255) NOT NULL, PRIMARY KEY (`Delivery_ID`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=5 ; data for table `Delivery` INSERT INTO `Delivery` (`Delivery_ID`, `Shipping Date`, `Delivery Information`, `Arrival Date`, `Delivery Company`) VALUES (1, 2011-04-16 15:00:00, Order_ID 1, 2011-04-22 12:00:00, Royal mail. 1st class), (2, 2012-10-21 14:00:00, Order Number 2, 2012-11-07 14:00:00, Ups), (3, 2012-01-11 11:00:00, Order Number 2, 2012-01-22 13:00:00, Royal mail. 2nd class), (4, 2013-11-09 13:00:00, Order Number 3, 2013-11-30 12:00:00, Ups); ); CREATE TABLE IF NOT EXISTS `Orders` ( `Order_ID` int(11) NOT NULL AUTO_INCREMENT, `Order date` datetime NOT NULL, `Order information` text NOT NULL, `Plant quantities` varchar(255) NOT NULL, `Price` varchar(255) NOT NULL, PRIMARY KEY (`Order_ID`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=5 ; data for table `Orders` INSERT INTO `Orders` (`Order_ID`, `Order date`, `Order information`, `Plant quantities`, `Price`) VALUES (1, 2013-01-10 00:00:00, Rosa Falstaff, Balkan cranesbill., 1, 21.98), (2, 2012-12-28 13:00:00, Abyssinian gladiolus,Ginger lily,Striped bloody cranesbill, 1, 31.89), (3, 2013-01-07 00:00:00, Skyscraper lily, 2, 7.98), (4, 2013-01-07 18:00:00, Striped bloody cranesbill, 10, 79.90); Table structure for table `Plants` CREATE TABLE IF NOT EXISTS `Plants` ( `Plant_ID` int(11) NOT NULL AUTO_INCREMENT, `Name` varchar(255) NOT NULL, `Latin Name` varchar(255) NOT NULL, `Type` varchar(255) NOT NULL, `Colour` varchar(255) NOT NULL, `Features` varchar(255) NOT NULL, `Flowering Season` varchar(255) NOT NULL, `Scented/Unscented` varchar(255) NOT NULL, `Groundcover` varchar(255) NOT NULL, `Sun Level` varchar(255) NOT NULL, `Soil Type` varchar(255) NOT NULL, `Orientation` varchar(255) NOT NULL, `Special conditions` varchar(255) NOT NULL, `Position` varchar(255) NOT NULL, `Description` varchar(5000) NOT NULL, `Price` varchar(255) NOT NULL, PRIMARY KEY (`Plant_ID`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COMMENT=Plants Table AUTO_INCREMENT=11 ; data for table `Plants` INSERT INTO `Plants` (`Plant_ID`, `Name`, `Latin Name`, `Type`, `Colour`, `Features`, `Flowering Season`, `Scented/Unscented`, `Groundcover`, `Sun Level`, `Soil Type`, `Orientation`, `Special conditions`, `Position`, `Description`, `Price`) VALUES (1, Rosa Falstaff, Ausverse, Rose, Purple, Excellent cut-flowers, Summer, Scented, No, Full sun, Fertile, humus-rich, moist, well-drained soil, North, No special conditions, Front of border, One of the best crimson/purple roses bred to date. The large, cupped, double flowers have a powerful old rose fragrance. The rich, dark crimson flowers eventually turn to a lovely rich purple colour., 13.99), (2, Narcissus , Canaliculatus, Bulbs, White petals with a yellow cup, Low maintenance, Spring, Scented, Yes, Full sun or partial shade, Well-drained soil, South, No special conditions, Next to an entrance, windowboxes, front of border, in a pot, Plant this at the front of your border, in a pot or in your windowboxes where you can enjoy the small, scented flowers up close. This variety produces several flowers on each stem so they are really colourful. The flowers have white petals with a small yellow cup and they look best in bold clumps., 3.49), (3, Balkan cranesbill, Geranium macrorrhizum, Perennials, Pink, Non poisonous, May to September, Aromatic foliage, Yes, Full sun or partial shade, Fertile, well-drained soil, West, Dry shade, Front of border, Clusters of small, saucer shaped, purplish pink flowers are held on slender stems above strong aromatic, light green leaves from May to September. This is one of the most versatile and useful geraniums, as it will thrive even in dry shade. The deeply cut, semi-evergreen foliage also spreads quickly to form low hummocks that suppress weeds for most of the year. It looks lovely with strongly shaped perennials, such as bergenia, or polemonium, or planted en masse under trees, and is also valuable for hiding the foliage of spring bulbs as they die down. The leaves often turn red in the autumn too., 7.99), (4, Sulphurea, Oenothera stricta, Evening primrose, Creamy yellow, Non poisonous, May to September, Evening, No, Sun, Acid, South, Coastal, Middle of border, Reliably flowering for many months, this showy evening primrose may be short-lived, but it usually self-seeds very freely. It produces large, pale yellow, almost cream flowers that will open in the evening and fill the air with their incredible, heady scent. It is very tolerant of poor soils and is generally very easy to grow., 1.59), (5, Clematis, Clematis cirrhosa var. purpurascens, Climbers, Cream, Winter colour, All year round, Scented, No, Sun, Light sandy, West, No special conditions, Walls and fences, Scented, bell-like, cream winter flowers heavily speckled inside with reddish-brown freckles and glossy, dark-green leaves. This evergreen clematis is ideal for training over a sunny pergola or arch. This is the best way to appreciate the distinctive freckle-like markings, which are less visible when the plant is grown against a wall., 14.69), (6, Skyscraper lily, Lilium Bonbini, Bulbs, Cream, Non poisonous, July, Scented, No, Full sun with light dappled shade at its base, Fertile, reliably moist soil, South, No special conditions, Middle of border, full sun with light dappled shade at its base, 3.99), (7, Ginger lily, Hedychium densiflorum, Bulbs, Orange-red, Architectural foliage, July and August, Scented, No, Full sun or partial shade, Rich, moist soil, South, No special conditions, Middle of border, Forming a slowly spreading clump of lustrous foliage, this compact ginger lily is one of the hardier forms. The slender spikes of fragrant, orange-red flowers appear early in the season and tend to open in one impressive flush., 5.99), (8, Abyssinian gladiolus, Gladiolus murielae, Bulbs, White, Non poisonous, Augsut to October, Scented, No, Full sun, Moist, well-drained soil, South, No special conditions, Middle of border, Delightlful spikes of nodding, funnel-shaped, highly fragrant white flowers, with a prominent burgundy blotch at the base of each petal, seem to dance on the breeze at the ends of their slender stems from late summer. It is a delightfully elegant plant that is ideal for adding movement to a sunny border. Plant it in clumps throughout the beds, or pot them up and keep them on the patio next to a seating area or often-used pathway, where you will be sure to make the most of the heady scent. , 4.99), (9, Lily, Lilium Dimension, Bulbs, Deepest red, Non poisonous, July to August, Scented, No, Partial shade, Moist, acidic soil, South, No special conditions, Middle of border, Branching, near-black stems carry clusters of upward-facing, dark claret-coloured flowers from midsummer. An asiatic hybrid, the tepals that make up the trumpet-shaped flowers, become more re-curved as the flower ages., 5.99), (10, Striped bloody cranesbill, Geranium sanguineum var. striatum, Mediterranean, Light purple, Non poisonous, June to August, Unscented, No, Full sun or partial shade, Fertile, well-drained soil, West, Dry shade, In a rock garden, fertile, well-drained soil, 7.99); ); CREATE TABLE IF NOT EXISTS `Staff` ( `Staff_ID` int(11) NOT NULL AUTO_INCREMENT, `Full Name` varchar(255) NOT NULL, `Address` varchar(255) NOT NULL, `Phone number` varchar(255) NOT NULL, `DOB` date NOT NULL, PRIMARY KEY (`Staff_ID`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=8 ; data for table `Staff` INSERT INTO `Staff` (`Staff_ID`, `Full Name`, `Address`, `Phone number`, `DOB`) VALUES (1, Dean Beale, 3 Crennop Road, CRENSHAW, C52 4ND, 077 8192 8493, 1973-11-19), (2, Isabell Edwards, 29 Beddie Road, PORTERS, CA1 0AS, 079 1028 9487, 1965-01-01), (3, Coutinho, 8 Hohlong Street, TREVENDALEIO, KL41 1LE, 070 5878 0006, 1966-02-17), (4, Mirak Klose, 81 Trollige Road, MAGGIE, DG7 2AH, 075 4832 1123, 1988-10-08), (5, ‘Toni Kroos’, 4 Menaos Lane, PORT TRAK, PA4 1FD, 078 5466 6665, 1956-05-31), (6, El Ahmadi’, 49 Kosovo Street, YEOVILSON, NG1 2HG, 077 5477 7908, 1985-09-13), (7, Gary Hooper, 53 Johnsonia Road, PITIFALL, PF15 3VB, 079 2122 5767, 1990-11-02); 4) DELETE FROM ‘GARDEN-CENTER’,’CUSTOMERS’ WHERE ‘Customer’,’Customer_ID’=1 UPDATE `GARDEN-CENTER`.`Customers` SET `Address` = 7 Windsor Road, CHESEFIELD, FH1 9LA WHERE `Customers`.`Customer_ID` = 1; 5) CREATE USER Staff@localhost IDENTIFIED BY GardenCenter; GRANT INSERT, DELETE, GRANT OPTION ON PLANTS TO USER STAFF 6) CREATE USER Staff2@localhost IDENTIFIED BY GardenCenter; GRANT INSERT ON Customers TO USER STAFF2 7) REVOKE INSERT ON PLANTS FROM user STAFF

A Speakers Reflections Essay -- essays research papers

A Speaker’s Reflections   Ã‚  Ã‚  Ã‚  Ã‚  Robert Hayden’s poem â€Å"Those Winter Sundays† is a reflection the speaker has regarding his father. An analysis of the poem’s tone and language reveals the speaker regrets his father did so much for the family and â€Å"no one ever thanked him†. It is obvious the speaker feels regret for the way he behaved toward his father in the past by examining the phrases in the poem, particularly with the description of the father. The connotations of the language used in this description denote the father in a certain way that the speaker did not see him as before. The tone and feeling of regret or sorrow is evident in the poem not only through language and word choice on the literal surface, but also in the structure of the poem itself.   Ã‚  Ã‚  Ã‚  Ã‚  The poem indicates the father as hardworking by his description. The speaker reveals the father has â€Å"cracked hands that ached from labor† and that â€Å"Sundays too† he â€Å"got up early† to start a fire and warm the house. As if this gesture is not enough, â€Å"He’d call† to his family â€Å"when the rooms were warm† so they would not have to endure the â€Å"blueblack cold† of a winter morning. The poem also indicates the father doing other chores, such as polishing â€Å"my good shoes.† This description of the father is moving, it show he loves his family and is thoughtful enough to do the chores no one else would want to do. The word choice for this description is very interesting, howe...