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Build Your Own Planetarium | Science Fair Projects

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❶You should also define a few methods in the main class, to be used inside the main method, to make the main method looks lean. It is also the name for the instrument used to show the positions and motions of celestial objects by projecting their images onto a hemispheric ceiling above seating….

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homework help instructions on creating a model of a planetarium

That is, if users enter 0 as ID, instead of showing the main menu, the system will print out all ATM transactions for each account in the Array that has incurred transactions and then terminate the project. The objective of this HW is to model an ATM machine experience described above, and there are many design options to choose from. You should also define a few methods in the main class, to be used inside the main method, to make the main method looks lean.

Consider creating atmWithdraw and atmDeposit methods to further simplify the code. Requirements for the Transaction class: Requirements for the Account class: Requirements for the main class: To test the two classes above, in the main method of your main class you first need to do the following: Implemented everything as per the requirements.

Defined following things in this answer. Created a class Transaction with required attributes and methods includi Get this answer with Chegg Study View this answer. Need an extra hand? Don't be panic anymore about thinking of the ways to complete your essay; EssaysChief is ready to help you in getting done your essay papers in top notch quality. Dissertation writing is a major assignment that the students of higher studies are must required to take up at some point.

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If you have cardboard or fiberboard that is white on one side — which will be on the inside of the dome — make sure that you label the other, outward-facing side. Cut out parts for the base. You will need 10 rectangles, with the top measuring the same length as the side of your equilateral triangle Set the height to be the desired height of your planetarium, no higher than a meter.

Select one of your rectangles to contain the door. Cut out a rectangular door around the interior of this base piece. Attach a wooden knob to a piece of cardboard cut slightly larger than the door, then glue the larger piece to the door panel.

The extra cardboard will serve to block light. Cut flaps on the panels. You will need to cut 5-cm 2-inch flaps on the outward-facing side of each triangle. We used one side of a pair of scissors to score the cardboard. You can also use a heavy ball-point pen to weaken the bending joint. You will also wish to cut flaps in the side of your base rectangles. There is no need to add flaps to the bottom, so only three sides need to be cut.

Paint one side white if necessary. If you were unable to obtain cardboard that is white on one side, you will need to paint it. Make sure you do this in a spot that is well-ventilated.

Use flat not glossy white paint and rollers. We do not recommend spray paint, no matter how well-ventilated an area you are working in, because it is difficult to apply evenly, and the constant pressure on your hand will quickly become a pain. You may wish to paint the interior of the base black, which will cut down on the light reflected from the projector and enhance the brightness of the stars.

Labeling the triangles is the simplest way to differentiate between them, but we chose to take it a step further.

We painted the exterior of our A triangles black, creating a reverse-soccer ball look to our dome and making it easier and faster to piece the dome together. This is a question that students may ask. Although you might think that a black dome would bear a greater resemblance to the night sky, most professional planetariums have a white surface look up the next time you are settling into your seat.

The reason hearkens back to elementary science, where we learn that black absorbs light, while white reflects it. Stars on a white surface will be seen more easily than the same light on a black dome. To clip panels together, point the interior side of the triangle down, bend the flaps up, and clip or bolt those flaps together.

Use at least three, if not four, clips per joint, or three sets of nuts-and-bolts with washers. First, create a pentagon of five B triangles, with the long equilateral-length side facing out.

Keep in mind that this is a three-dimensional triangle, so they won't fit together lying flat but will instead bulge into a small dome. This caused us some stress when we couldn't fit them together flat, and relief when we realized the reason Make a total of six of these pentagons. Take one of the pentagons and attach five A triangles to each outside edge. This will be the center "roof" of your dome.

Set the remaining five pentagons in a circular pattern on the floor and connect an A triangle at the bottom to connect them together. The more hands you have, the better.

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Instructions: This homework models after a banking situation with ATM machine. You are required to create three classes, Account, Transaction, and the main class (with the main method). Please closely follow the requirements below.

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Please help me with this Instructions: This homework models after a banking situation with ATM machine. You are required to create three classes, Account, Transaction, and the main class (with the main method). Please closely follow the requirements below. The most important decision that you will make will be what size of the planetarium you wish to build. A dome that is two meters ( feet) across will allow a small number of students inside; we housed four children and one adult but it was tight. A 5-meter (15 feet) dome will allow significantly more students, but will also take up more space.