Deep Space North (File: polarbl1.txt)
In a simulation the amount fuel or size of a virtual rocket is not relevant. Launching straight up allows me to focus on teaching Newton's Laws of motion and principles of gravity. My simulations are not calculators, I use calculators and calculus to test that the performance of my spacecraft is consistent with Newtonian Physics. Therefore, student can explore gravity, Cartesian coordinates, and Vectors, and I can program games that are consistent with laws of motion in a gravitational field.
Go to Our Product/Text Files Online and download file polarbl1.txt
Convert File to HTML and pilot space per instructions embedded in script. This script will be the baseline for the Deep Space North series of educational games. This series of games will start by launching spaceship straight up from earth north pole over a hundred thousands kilometers. Here the gravitational pull is l weaker than the SLOW 9.1 m/sec/sec engine trust.
Convert File to HTML and pilot space per instructions embedded in script. This script will be the baseline for the Deep Space North series of educational games. This series of games will start by launching spaceship straight up from earth north pole to over a hundred thousands kilometers. Here the gravitational pull of earth size rogue* planet is l weaker than the SLOW 9.1 m/sec/sec engine trust.
* An atmosphere free rogue planet with no magnetic field or spin is a better way of thinking of this simulation. At this point many metaphors (stories) can be developed from this baseline script.
Deep Space North Intercept (File: polarbl2.txt)
Acceleration and Gravity(North Polar BL2)
Acceleration: This simulation allows you to blast off from the north pole of earth into deep space where the ships ion engines can take over vehicle propulsions. Blastoff simulates a booster rocket that provides high acceleration of 3 g-force straight up from north pole of earth into outer space. The Acceleration of gravity is 9.806 meters per second per second downward (-Y direction). When elevation = 0, Y = 6353 kilometers (radius of earth). Type in the ship orientation ( force direction) and thrust duration, and then click ENTER button. This enters desired course and duration into the spaceship ion propulsion engine control computer. The computer uses the accelerometer sensor inputs to regulate thrust so as to maintain desired acceleration. Engine burn does not begin and Time does not change until an Engine Control Button is clicked. The STOP ENGINE button advances time by an amount specified (Thrust Duration as entered) at zero thrust and zero fuel consumption. During the stop engine period the spaceship will be in freefall, and it will continue to move under the influence of gravity which varies with elevation. Elevation = Yposition - 6353.
Start by launching the spaceship
straight up (90 degrees) with a blast off 3 g-force for a period greater than 400 seconds and then
press STOP ENGINE one or two times observing freefall motion of spaceship.
Before the spaceship is captured by planets gravitation use a combination of Engine
burns( SLOW, Full Speed Ahead) and Freefalls (STOP Engines) to reach deep space where gravity is weak and navigation using Ion propulsion would be possible. You can
set your goal (game rules) if you wish. Practice docking at space station SP1 with a minimum of fuel usage.
Note: Ship Orientation and Course are independent of each other.
Exercise: Launch Spacecraft at 90 degrees for 400seconds by clicking Blast Off . Then press STOP, SLOW, FULL SPEED AHEAD Bottons to advance time and navigate in deep Space. Intercept Space Station Deep Space #1 (SP1)
Design your own game rules: Time only advances when you click a button. This gives you all thetime you need to make calculations as required to minimize Fuel Consumption and Intercept velocity. This might be a very good educational exercise, but it might not be much fun. You might want to record the time it takes to safely Intercept Space Station and enemy ship Hostile #1 (H1). Invent your own game! Programming a calculator or building a chart to assist pilot in making a intercept would be both fun and educational. Intercept can be defined as a distance and velocity.
Image Below: Picture taken by docking camera on SP1.