...that use the traditional tracking ball, the optical mouse and the mouse that has no physical connection to the computer. The most common mouse found near a computer today is the traditional mouse that uses the tracking ball. This is the same method as was used when the mouse was first released in the 1980's. The track ball inside the mouse touches the desk when it is moved. When the ball moves the motion is detected by two perpendicular axis, one which detects x axis directional motion and the other y-axis direction motion. Tracking Ball Perpendicular axis motion detectors Hole in which track ball would sit The diagrams above show the tracking ball and the hole in which the tracking ball sits. You can see the x and y axis motion detectors of which the y-axis detector lies 90° from the x-axis detector. These motion detectors are also known as rollers. When the mouse is in use the tracking ball moves moving one or both of the rollers. Each roller is connected to a shaft, which spins a disc. The disc has holes in it and next to the disc is an infrared LED and an infrared sensor. As the disc spins the hole in the disc breaks the beams of light generated by the LED and the sensor picks up these pulses of light. The speed of the pulses is related to how far the mouse has travelled. If the disc spins faster the further the mouse would have travelled. A diagram below shows one of these discs. LED light LED sensor Disc Shaft So...
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...to Prince Orlofsky’s ball. Falke has planned to get revenge on Eisenstein for humiliating him after a party. Falke is having fun plotting his revenge and this is portrayed by Falke’s demeanor toward Eisenstein. Falke is cheerful and excited when he finally convinces Eisenstein to put off jail until morning and go to the ball with him. Another specific moment that revenge is portrayed as fun is when Rosalinda is having fun at the ball flirting with her husband, all the while Eisenstein has no idea this is his wife. She steals his pocket watch so that she can reveal later that it was her that he was flirting with. All of this, revenge on Esinstein, was being done to entertain the Prince. The idea that Falke was getting revenge on Eisenstein while at a ball that was meant to be fun and entertaining is another element that the director was envisioning “revenge in fun is fun”. The director’s concept of an “Austrian pastry” was visually conveyed by the pastel lighting, as well as the light and happy music. The costumes of the characters conveyed fluffy and sweet because of the type of fabric that was used and the colors of the fabrics. Some of the costumes had glitter which brings to mind sugar. The costumes were also bouncy and swingy illustrating “light and fluffy”. The set was brightly decorated , the white gave me the idea of icing. The blocking/movement that was obvious, was a lot of bouncing by the characters which was a visual illustration of light and fluffy as well as...
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...Use of Physics in Everyday Life Use of Physics in Everyday Life Introduction In today’s world, people are surrounded by science and technology, which continue to be more powerful by each passing day. One of these sciences is physics. Physics is science that concerns nature and the properties of matter. It includes mechanics, light, energy, magnetism, structure of atoms sounds and heat among others. The following paper is an essay concerning the use of physics in everyday activities. Skating, using cameras, warming homes using a woodstove, playing with balls that freely fall when suspended and using clothes during cold seasons are some of the examples of areas where physics is used in everyday activities. Skating Skating is one of my daily activities where physics is applied. Skating is a type of movement that is made possible through the laws of motion found in physics. Skating can help explain the term movement, what makes skaters move and what keeps skaters moving while in motion. Also, it helps explain what it takes to stop moving or turn the process of moving in another direction. Skating can also reveal the concept of acceleration and deceleration, as well as the concept of speed. While putting a skate, nothing will happen to such a person unless an external force acts on him or her. The concept of inertia states that a body in motion will always tend to move while a body at rest will always tend to rest unless an external force acts on it (Laws, Sugano, and Swope...
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...scoreboard shows the score of 1-1. The dazzling gold numbers bounce off of the board, giving light off light to the field as the moon gives off light to the earth in darkness. The shining lime green ball rolls around the pitcher’s hand.The ball blinds everyone as all you can see is the pattern of the blood red laces. During this, day turns into night, the intensity is as high as the clouds. The clouds are fluffy cotton balls flying swiftly to another land; continuing their journey to elsewhere. The clouds move as girls are working hard. The pink and blue skies created a sense of urgency as a couple of girls...
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...in this activity? D. How would these errors affect your conclusion? E. Billiards is a game that makes use of reflection (Figure 2). How could the results of this activity help you in such a game? F. What other sports or activities make use of the reflection rule that you discovered in this activity? Answers a. The angle of incidence (the angle between the light emitted from a source and the normal) and the angle of reflection (the angle between the light that bounces from the surface and the normal) have the same angle. This is because a reflection coming from a plane mirror is usually equivalent to the object it is reflecting; this means that the angle in which the incident ray hits the mirror will be the same angle as the reflected ray. b. When the light was directed to the mirror at the same angle as the normal, the incident ray travelled straight along the normal line towards the mirror and as it hit the mirror it made the reflected ray travel straight along the normal line away from the mirror and towards the light source. c. There are places where errors could've occurred in this activity; first, when the light was aimed at the plane mirror the spot in which the incident ray had to hit was the normal end of the mirror but in some cases one angle could be right on the normal and other angles a bit off. The tracing of the line which is created by the rays might not always be precise which can also alter a bit the final result. Also if the mirror was moved at all during...
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...t year NATIONAL SENIOR CERTIFICATE GRADE 12 PHYSICAL SCIENCES: PHYSICS (P1) FEBRUARY/MARCH 2013 MARKS: 150 TIME: 3 hours This question paper consists of 15 pages and 3 data sheets. Copyright reserved Please turn over Physical Sciences/P1 2 NSC DBE/Feb.–Mar. 2013 INSTRUCTIONS AND INFORMATION 1. Write your centre number and examination number in the appropriate spaces on the ANSWER BOOK. This question paper consists of TWO sections: SECTION A SECTION B 3. 4. 5. 6. (25) (125) 2. Answer ALL the questions in the ANSWER BOOK. You may use a non-programmable calculator. You may use appropriate mathematical instruments. Number the answers correctly according to the numbering system used in this question paper. YOU ARE ADVISED TO USE THE ATTACHED DATA SHEETS. Give brief motivations, discussions, et cetera where required. Round off your final numerical answers to a minimum of TWO decimal places. 7. 8. 9. Copyright reserved Please turn over Physical Sciences/P1 3 NSC DBE/Feb.–Mar. 2013 SECTION A QUESTION 1: ONE-WORD ITEMS Give ONE word/term for each of the following descriptions. Write only the word/term next to the question number (1.1–1.5) in the ANSWER BOOK. 1.1 The type of electromagnetic radiation that is used to take pictures of the human skeleton The product of mass and velocity The principle which states that each point on a wave front acts as a source of secondary waves The unit of measurement equivalent to a coulomb per...
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...the screen. Examples of pointing devices are mouse, trackball, touch pad, pointing stick, joystick, touch screen, light pen and graphics tablets. A mouse is a computer device, which has a ball sealed at the bottom. It is attached with a cable to the system unit. When rolled on the flat surface, the movement of the ball will generate electrical circuits, which are then sent to the computer. The movement of the mouse controls the insertion point and pointer on the screen. Moving the mouse allows user to positions the pointer or cursor an indicator on the screen that shows where the next interaction with the computer will take place. When the mouse is moved to the left, the pointer will move to the left, when the users move it to the right, the pointer on the screen will move to the right. Many users turn to the mouse as a quick substitute for some functions of the keyboard. There are various types of mouse operations such as point, click, double-click, right click, drag and so on. A cordless mouse users infrared remote transmission to communicate with the computer. Normally there is an IrDA (Infrared Data Association) port on the system unit to receive the signals sent by cordless mouse. A trackball is a pointing input device with a ball on the top. It is a type of upside-down mouse. The ball is manipulated by palm or finger. As with a mouse, movement of the ball causes electrical circuits, which are sent to the computer. The corresponding movement of the cursor on the screen...
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...from surfing the Internet to writing documents. Keyboard also allows to input letters, numbers, and other symbols into a computer that often function as commands. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing additional functions. There are two types of keyboard, which are the QWERTY and Dvora layouts. Keyboards are also of two sizes 84 keys or 101/102 keys, but now keyboards with 104 keys or 108 keys are also available for Windows and Internet. Keyboard is used in the input phase of a computer-based information system. * Mouse: Mouse is most popular pointing device. It is a very famous cursor-control device having a small palm size box with a round ball at its base which senses the movement of mouse and sends corresponding signals to CPU when the mouse buttons are pressed. Generally it has two buttons called left and right button and a wheel is present between the buttons. Mouse can be used to control the position of cursor on screen, but it cannot be used to enter text into the computer. Mice now come in many types, from...
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...BRAINTEASERS AND GUESSTIMATES Vault Guide to Finance Interviews Brainteasers and Guesstimates Stress Tests Perhaps even more so than tough finance questions, brainteasers and guesstimates can unnerve the most icy-veined, well-prepared finance candidate. Even if you know the relationships between inflation, bond prices and interest rates like the back of a dollar bill, all your studying may not help you when your interviewer asks you how many ping pong balls fit in a 747. That is partly their purpose. Investment bankers and other finance professionals need to be able to work well under pressure, so many interviewers believe that throwing a brainteaser or guesstimate at a candidate is a good way to test an applicant’s battle-worthiness. But these questions serve another purpose, too – interviewers want you to showcase your ability to analyze a situation, and to form conclusions about this situation. It is not necessarily important that you come up with a correct answer, just that you display strong analytical ability Acing Guesstimates We’ll start by discussing guesstimates, for which candidates are asked to come up with a figure, usually the size of a market or the number of objects in an area. Although guesstimates are more commonly given in interviews for consulting positions, they do pop up in finance interviews as well. Practicing guesstimates is a good way to begin preparing for stress questions in finance interviews, as they force candidates to think aloud – precisely...
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...I will never forget September 28, 2013. It was a cold night in Harrod, Ohio, as our football team was getting ready to go to battle against the Allen East Mustangs, under the friday night lights. The talk was cheap at school all week about how we were going to crush the Mustangs with ease, but everything changed the instance that first whistle blew. The first drive of the game seemed like we thought we had already won the game. The Mustangs marched right down the field, and their side of the bleachers erupted with loud, cheering fans. Our strong point was our offense anyways, so we thought that we were fine. Then we got stopped on our first offensive drive, and that’s where the frustration came into play. At the end of the first quarter, we...
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...* NAME OF ACTIVITY: Muffin tin and toy balls * DEVELOPMENTAL FOCUS: Physical * APPROPRIATE AGE(S): Toddler * CREATIVE AREA: Creative movement * SOURCE: http://www.artfulparent.com/2013/02/10-creative-activities-for-kids.html * DESCRIPTION OF ACTIVITY: Get muffin tins or cups and but balls in them. Can be plastic, rubber or whatever balls will fit. Kids will have fun dumping them out and let them roll on the ground and putting them back in. * * NAME OF ACTIVITY: Pompoms * DEVELOPMENTAL FOCUS: Physical * APPROPRIATE AGE(S): 5 and up * CREATIVE AREA: Creative health & safety * SOURCE: http://www.artfulparent.com/2013/02/10-creative-activities-for-kids.html * DESCRIPTION OF ACTIVITY: This activity gives kids awareness of their breathing. You blow the pompoms around on the floor. The kids can do races, count how many breaths it takes to get across the room and you can spread them around on the floor and blow them back into a big pile. * * NAME OF ACTIVITY: Jewelry * DEVELOPMENTAL FOCUS: Fine motor skills development * APPROPRIATE AGE(S): 5 and up * CREATIVE AREA: Arts and crafts * SOURCE: http://www.artfulparent.com/2013/02/10-creative-activities-for-kids.html * DESCRIPTION OF ACTIVITY: Get straws or noodles and yarn. Cut up the straws and cut the yarn long enough for a necklace or bracelet. Kids can put the straws or noodles on the yarn and make beautiful jewelry. * * NAME OF ACTIVITY:...
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...table there are two men that appear to be placed in the background because they are both drunk with one actually passed out on the table. Directly in front of them our eyes are drawn to two balls; one is white and the other is orange. This is bringing the color of the walls down onto the table. The third ball lines you up to see the woman in the front right corner who is sitting alone. Her face is tan like the lower walls and if not for the thin outline of her face, she would merely fade into the wall. The clothing worn by five of the seven people in the room is very dark, holding a depressed feel to them. At a table directly behind the lonely woman are two people, a man and a woman who appear to be the life of the party through the colors of their clothing. The man’s orange shirt, like the pool ball, brings the upper wall color down lower into Gauguin’s painting. It keeps your eyes within the center of the painting. There is a painting on the wall in the background that balances the table of the lonely woman who sits at the front of the picture. Her table top is light in color showing us, like the light of her blouse, which these objects are in the direct of a light source. The further back you look into the painting, the darker the surfaces, with the exception of the light colored table that the two men are sitting at. It makes you feel that there is may be a connection between the lonely woman, who is looking in their direction, and them. The room is smokey,...
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...Descartes and Rationalism René Descartes, 1596-1650 (Latin Renatus Cartesius, hence the term Cartesian) Descartes’ Project Descartes was a contemporary of Galileo and Kepler. He was born about 50 years after the publication of Copernicus’ De Revolutionibus. Thus he lived right at the beginning of the scientific revolution, as the medieval world view was beginning to collapse. Descartes was a mathematician and physicist, as well as a philosopher. He was the first to offer a system of mechanics that applied both to terrestrial and heavenly bodies. His system was based on a set of laws governing the motions of particles, including various types of collisions. These laws, though unsuccessful, were a precursor of Newton’s laws of motion, and Huygens’ solution to the collision problem. Descartes had the disturbing experience of finding out that everything he learned at school was wrong. From 1604-1612 he was educated at a Jesuit school, where he learned the standard medieval, scholastic, Aristotelian philosophy. In 1619 he had some disturbing dreams, and embarked on his life’s work of rebuilding the whole universe, since the Aristotelian universe was doomed. (Descartes didn’t suffer from lack of ambition!) The problem for Descartes was that he couldn’t merely tinker with the medieval picture, fixing it up here and there, because it was fundamentally wrong. It was rotten to its very foundations. The only way to proceed was to tear it down completely, and start building again from scratch...
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...Kayak, One or Two Person $14 $25 **Canoe Trailer (holds 1 or 2) $10 $18 **Canoe Trailer (holds 6 or 8) $23 $40 **^6 Canoe Package $92 $175 **^8 Canoe Package $115 $200 **#^Pontoon Boat $125 $200 **#^Bass Tracker or Low Fishing Boat $125 $200 **#^14‘ V Bottom w/ 9.9hp motor $41 $75 **#^14‘ V Bottom or Jon Boat $23 $40 Anchor/Lifejacket/Oars/Paddle $2 $4 Trolling Motor w/battery $12 $20 9.9 Boat Motor $20 $35 !!!Boaters Safety Course is required to rent a motorized boat at ODR!!! * Requires 1 7/8" ball and 4-prong light connector ** Requires 2" ball and 4-prong light connector *** Requires 2 5/16” ball and 7 prong light connector **** Requires 2” ball 7 pin light connector # Lifejackets and oars are included in the rental fee. Fuel and oil are not ^ Trailer included PATRONS ARE RESPONSIBLE FOR PROVIDING THEIR OWN TOWING HITCH, BALL AND LIGHT ADAPTER! All items must be returned clean, dry...
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...The nature of a Disco club means many different lights and light sources. The stage lighting itself would be fairly dark, consisting of thin beams of varying colors that move around the scene, giving a sense of motion. As the scene calls for it, there would be a large white light spotlight to highlight the main action on stage. More interestingly, the light sources found in the scene would vary dramatically. With the help of some fog, a light show of streaming colors would dance around the set, framing the dance floor. The dance floor itself is the quintessential dance floor in a disco club, made up of many square, multi-colored panels. Bulbs of different colors would periodically fade in and out in the background to maintain a steady rhythm and keep the lighting on stage dynamic. The actors in the background, at the bar, or not dancing will also have prop cigarettes that emit a signature orange dot of light. The actors could subtly choreograph the movement of the cigarette rhythmically with the music to help with audience immersion into the dance scenes. Electronic candles set on tables surrounding the dance floor would provide an “in-universe” light source the highlight character dialog. As characters sit down to have dialog, these dimmable candles will get brighter, guiding audience attention. All of these lights will be in service to a large mirrored disco ball that remains above the dance floor for the...
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