Ryan

Facts

 * I think no human has gone on the planet.
 * Is a planet.
 * A candy bar named after it
 * Is a red planet possibly life on it.
 * Rovers are there.
 * Wheels broke on spirit though she kept on going
 * Found salt on water and water must have been there.

Facts to know in order to send a Rover to Mars.
 * Need enough fuel to escape Earth's gravity
 * Need to launch so the distance travelled is the least possible so we can use less fuel.
 * Need to determine aim for mars where it's going to be in the future when our rocket get there

//Ms. Mc: Some good facts about Mars and its conditions, however you were to focus on those that would be important for getting a rover to Mars and for it to work on Mars' surface (-2). Good additions from our class discussion, however, you missed a few (-2). If you aren't able to get everything recorded in class, please let me know and I'll send it to you. 6/10//

Rocket History
1. Hero mounted a sphere on top of a water kettle. A fire below the kettle turned the water into steam, and the gas traveled through pipes to the sphere. Two L-shaped tubes on opposite sides of the sphere allowed the gas to escape, and in doing so gave a thrust to the sphere that caused it to rotate.

2. A tube, capped at one end, contained gunpowder. The other end was left open and the tube was attached to a long stick. When the powder was ignited, the rapid burning of the powder produced fire, smoke, and gas that escaped out the open end and produced a thrust.

3. Konstantin proposed the idea of space exploration by rocket. Tsiolkovsky suggested the use of liquid propellants for rockets in order to achieve greater range. Tsiolkovsky stated that the speed and range of a rocket were limited only by the exhaust velocity of escaping gases. Also called Father of Modern Astronautics.

4. Goddard achieved the first successful flight with a liquid-propellant rocket on March 16, 1926. Fueled by liquid oxygen and gasoline.

5. The German small rocketVerein fur Ramschiffahrt developed the V-2 rocket. Which was used against London during world war ll. It could devastate whole city blocks.

6. NASA formed to encourage aexploration of space for the benefit of all human kind. The US was shocked the Soviet Union launched the satellite Sputnik I. In 1957.

Ms. Mc: You were to make your review question answers into 2-3 paragraphs and expand upon them (-4). Please make you images small enough that they fit on the screen. Don't forget to include a figure # in your captin. Also, please refer to any images in your writing (i.e. "as seen in Figure 1"). 6/10

=Log Entry #3= Scratch Rocket Launch 4/20/12 (Had to re-do it because the file was lost) media type="custom" key="15159618" width="130" height="130" 1. Press the GREEN flag to watch. 2. Press the RED stop sign to stop the presentation 3. If you cannot view press the link above 4. Watch and ENJOY

Comments:

=Log Entry #4= Rocket Parts 4/16/12

//**Ms. Mc - good labels but you also were to include a paragraph defining the function of each part of the model rocket. Please make your photos small enough so the who picture is displayed on the screen. Also, don't forget to give your pictures fibure #s; 4/10.**//

4/27/12
 * Log Entry #5**
 * Atlas V 541 Rocket**

As seen in figure 1, the Rocket is made up of a lot of parts. The Atlas V 541 was chosen for the mission to take a rover named Curiosity to Mars. The rocket was chosen because it had the right liftoff capability and other rocket like it was successful for NASA. The Atlas V 541 is made up of the Atlas V Rocket, Centaur, Payload Fairing, and Solid Rocket Motors. It weighs 17 million pounds, and 19 stories tall. The Four solid rocket booster’s increase thrust. The Centar acts the the “Brain in Rocket. The fuel and the oxygen tank help the engine for ascent.

//Ms. Mc: good overveiw and diagram of the launch vehicle. Don't forget to add a caption with a figure # and title for your uploaded files (-1/2). Also, what exactl did the Centaur engine do? (-1) 8.5/10.//

=4/28/12= =Log Entry #6= =Rocket Launch Write Up= The purpose of this experiment was to see if lighter or heavier rocket fly higher depending design and weight. Forces acting on the rocket are the launch launcher and gravity. Once the rocket has liftoff forcers acting on the rocket are air resistance, gravity, and force from the thrusters on the rocket. Once the rocket is coasting it also has air resistance and gravity though it doesn’t have force from the thrusters on the rocket. Once the rocket hits apogee it has no air resistance or thrust, and only has the force of gravity acting upon it. Once the rocket falls the force of gravity is acting on by pushing ti down. There is also air resistance though gravity is too strong and the rocket falls down. It was hypothesized the mass or how heavy the rocket is would affect how high the apogee is because if the rocket is really heavy it may take more gravity and air resistance to slow it down.

The hypothesis was proven correct. The heavier the rocket was the lower it flew. The only thing that could make this wrong is the outlier. The outlier is the second heaviest, but the lowest apogee (as seen in figure 1). The data supports the hypothesis because it seems the lighter the rocket the higher it goes. Some of the possible affects could have been a gust of wind, or it could of been put together wrong. Another thing that could have affected the results is the different people who used the angle guns.

Log Entry 7 5/10/12 Rocket Fin Redesign We modified the rocket to 4 fins so it could fly higher and straighter. We took off all the fins to make sure they were all equal. It was hypothesized ???? The rocket weighed 43.9g when we had 3 fins. The rocket weighed 45.0g when we had 4 fins. When we flew the rocket with 3 fins it flew 83.9m. When the seconded rocket was flown it went 48.8g. The idea of the 4 fins was to make the rocket more stable and go higher. The fact that we added more mass didn't help the rocket get good altitude. Also if my partner and I didn't get put on the fins equally then it could have hurt the air resistance.

//Ms. Mc - good drawing of your redesign. Don't forget to include a figure # in your caption. (-1/2). You needed to discuss how CG and CP affect rocket flight// //stability. (-1). 3.5/5//


 * //Log Entry #8 //**
 * //History of Robotics //**


 * //In 270 BC: Ctesibius, a Greek physicist and inventor makes organs and water clocks with movable figures. The next big robotic finding was the anthrobot, a mechanical man who was designed by Leonardo da Vinci. Then a mandolin- playing lady is created by an Italian inventor named Gianello Torriano. More than 200 years later Swiss inventors Pierre and Henri Jacquet-Droz built a robot child called L'Ecrivain (The Writer). L'Ecrivain could write messages with up to 40 characters. Its brain was a mechanical computer. In the same year a piano-playing robotic woman is built. In the 1890's Nikola Tesla designed the first remote control vehicles. Tesla also invented the radio and Tesla coils. //**


 * // Now in the 1900's the first reference to the world "robot" appears in a play opening in London. The first big finding in the 1900's were Americans Willard Pollard and Harold Roselund designed a programmable paint spraying mechanism for the DeVilbiss Company. A few years later a man named Grey Walters created an early robot named Elsie the tortoise. //**


 * // The Birth of the Industrial Robot happened from 1950 - 1979. Many programmable robots were designed. Much later on in 1997 NASA's Pathfinder lands on Mars. In 2000 and 2004 Humanoid robots are created. //**

// Ms. Mc - Good general overview and I like how you included the first Mars Rover. The Rover's actual name was Sojourner and the mission's name was Pathfinder. I receive your images of a blender and a drone airplane via email, however, I'm not sure how they relate to your entry since you don't mention either of these and don't refer to your figures specifically (i.e., as seen in Fig. 1) in your text. - 3 -1 pt. late = 6/10 //

//**Log entry 10**//

Date? Title? -1/2

Tommy and I took up the challenge called On the Edge where you would have to get a moving robot to stop right before it fell of the edge of the table. In this experemnt we used a robot, duck tape, a table, and a ultrasonic sensor. (Also used a sound sensor and the robot started when you said "go." -1/2) In figure 6 (the picture up above) is the code me and Tommy told the robot to do for the On the Edge challenge. On the left the is a box with a microfone in it. That tells the robot when ever there is a louad sound it can start. We can yell "Go!" or clap our hands or anything else load to start the robot. (How loud and what port? -1) The next box with the tools on it tell the robot to keep going straight. (What ports? -1/2, What direction? -1/2, What power? -1/2.) The next box tells the robot to sense any light that is darker than the table. (What port? How dark? -1/2). The next tools box tells the robot to stop once sensed any light darker than the table. Then the last sound is a sound box and after the robots stops right before the table ends the robot says "Watch out!" (How loud? -1/2)

Ms. Mc - good overall, just missing a few details. 16/20