Griffin

**Things to know in order to send a rover to mars.**

 * == It is Very cold on mars (-250 Celsius degrees) needs to be able to withstand cold temperatures. ==
 * == On mars there are Ice caps, seasons, and canyons. ==
 * == On mars there can be mass sandstorms that can cover a solar panel for a long time. ==
 * == Mars is full of salts. ==
 * == At one time mars and earth are aligned so the distance between planets are aligned ==
 * == Mar's atmosphere is mostly composed of carbon dioxide. ==
 * == Mars is covered by hundreds of thousands of craters so they need to pick a smooth landing site. ==
 * == Need to aim ahead of where mars is currently is in order to reach it in time. ==
 * == Only gets 44 percent sunlight so if has solar panels it will also need a back up generator. ==
 * == 7 to 8 months the rover will take to get to mars. ==
 * == rover needs good traction as surface is rocky and has loose soil. ==

//Ms. Mc: Good facts. Why would it matter that Mars' soil has salts or that it's atmosphere is mostly CO2 in order to send a rover there? (-2) Don't forget that Mars is a proper noun so you need to capitalize it. 8/10//

facts about rocketry
===The Chinese were the first to make fireworks and also lit arrows on fire so when flying and landed they would cause mass fires. this helped protect themselves when the mongols started war with the Chinese. Konstantin Tsiolkovsky was a imperial Russian and soviet rocket scientist. He proposed the idea of space exploration from rockets. Goddard achieved the first successful flight with a liquid-propellant rocket on March 16, 1926.=== ===The V-2 rocket (inGermanycalled the A-4) was small by comparison to today's rockets. It achieved its great thrust by burning a mixture of liquid oxygen and alcohol at a rate of about one ton every seven seconds. Once launched, the V-2 was a formidable weapon that could devastate whole city blocks. NASA then became a civilian agency with the goal of peaceful exploration of space for the benefit of all humankind.=== ` Ms. Mc: Summary was to be 2 paragraphs and needed to add more details to your answers to the review questoins for the reading (-3). You also needed 2 pictures (-2). 5/10

Scratch Rocket Flight Simulation
media type="custom" key="14075836"

Instructions for How to Run Simulation press green flag and turn up the volume! if simulation doesn't work, click on the learn more about the project link above

Caroline - Cool rover, good definitions (: you might have wanted to be a bit more detailed on the definitions, and check capitalization and such. The take-off is very good with it's detailed drawing.

Rosie- Nice. I liked the rover, and the twist on it. Be careful with spelling and grammar. I liked the countdown, very nice ;)

labeled rocket and paragraph


The nose cone is used for less drag and it is more aerodynamic than a flat surface. The body of the rocket is used to hold everything that is used in the launch to recovery. The recovery system is used so that the rocket can land safely. The recovery wadding is used so that when the fuel is burning it doesn’t light on the parachute. The launch lug is used so that when the rocket is lit it can go on a straight path. The fins are used to guide the rocket and make it more stable. The rocket motor is used so that it can be burnt and used as fuel. The rocket motor mount is used to keep the rocket motor in place.

//Ms. Mc: Good descriptions of the purpose of each rocket part. Your labels were hard to read though (-1). I made your picture a little bigger to help with this. Don't forget to refer to your figure in your text. 9/10//

rocket parts


what makes up the rocket are  Fuel and oxygen tanks, solid rocket motors, centaur, and payload fairing. the tanks feed the engine during ascent, the motors are used to increase the rockets thrust, the centaur's purpose is to fuel the rocket's "brains", and the payload fairing is used to protect the spacecraft. this specific aircraft was used because the rocket is very large so they needed a large rocket as well. the height of the rocket is about 16 stories high and the mass is 191 feet and the mass is about 1.7 million tons.

//Ms. Mc: Good general summary of the Atlas V 541 launch vehicle but some of your facts aren't correct. The Centaur engine gets the rocket into Earth's orbit and then launches the cruise vehicle into space (-1). The rocket's heigh is 191 feet or about 19 stories high and it weighs 1.17 million pounds not tons (-2). Don't forget to give your figures a caption and refer to them in your writing (-1). 6/10 //

Rocket Launch Lab and Analysis Write Up
The purpose of this experiment was to see how high a rocket could fly depending on its mass. The different forces pulling down on the rocket were gravity and air resistance. The forces pulling up on the rocket were thrust, inertia, and powered flight. The force pulling the rocket to the left and right was sometimes wind. It was hypothesized that the heavier the rocket the lower the apogee would be because it take more thrust to lift off a heavier rocket than a lighter rocket. Apogee is the highest point the rocket can reach. It was calculated by the use of trigonometry. Trigonometry if a mathematic formula that is used to find the apogee by finding the angle of the rocket at its highest point and the 90 degree angle that it flies in. figure 1. Is the scatterplot of the rockets’ apogees compared to each other.

[[image:cascience7-2012/jgc_scatterplot.JPG caption="fig 1.different masses and apogees compared to each other "]]
The range between the mass was 3.7 grams. The range between the apogees was 71.5 meters. This was almost two times the lowest apogee! There was an inverse relationship in the data which means that the higher the mass the lower the apogee. My hypothesis was confirmed because I said the higher the mass the lower the apogee and I was correct. Some errors in our experiment might have been the weather and the angle guns.`

[[image:cascience7-2012/jgc_rocket_redesighn.JPG]]
I think that my fins will make the rocket more straight in the air so that it can be on a more stable path and go farther. Our rocket had a lower apogee than the one before. Our mass changed by around ten grams! The # of fins was eight which must have added more air resistance to our rocket. The shape and placement were kind of different because we put some on the bottom laying flat. The center of gravity was above the center of pressure. The flight path was similarly straight from the first launch.

5/4/12 log entry 7 history of robotics Robotics is a worldwide phenomenon. More modern day robots developed when the Industrial Revolution allowed the use of more complex mechanics and the following form of new-found way of electricity made it possible to power machines with small compact motors. After the 1920s the modern formulation of a humanoid machine was developed to the stage where it was possible to envisage human sized robots with the capacity for near human thoughts and movements. The first uses of modern robots were in factories as industrial robots – simple fixed machines capable of manufacturing tasks which allowed production without the need for human assistance. Digitally controlled industrial robots and robots making use of artificial intelligence have been built since the 1960s.When we hear robots we usually think of a humanoid robot that does things for you, but did you think of the things that build cars or even the Mars rover? These things just as intellectually need as a humanoid servant. As you can see In history, robots are making life easier, nicer, and of course better! //Ms Mc - good summary of modern day robotics but a line or two about when robotics started would have been good (-1). I'm not sure how your diagram ties into your discussion? Please be sure to give your uploaded files captions and refer to them in your text (-2). -1 pt (10%) late. 6/10.//

on the edge challenge
The on the edge challenge was basically a challenge where the robot had to start moving when we said go. The robot would continue going until the light sensor sensed the edge of the table and then it would stop and say wrong way. (Actually, it said "watched out!" -1/2)

media type="file" key="100_0153.AVI" width="300" height="300" Caption? -1/2

Caption? -1/2

Block 1: tells the robot to detect the sound saying go. (What port and how loud of sound? -1) Block 2: tells the robot to move servo motors b and c to go forever. (What power? -1/2) Block 3: tells the robot to continue going until the light sensor senses a change in color. (What port and how much light? -1). Block 4. Tells the robot to stop once it detects the change in color. (Ports? Stop by braking or coasting? -1/2) Block 5: tells the robot to say wrong way (watch out). (How loud and how long? -1/2) Block 6.tells the robot to wait for 1 second.

//Ms. Mc - good but you left out some details. 15/20//

Entry #? Title? Date?

We now know that life can survive in a wider range of conditions than thought possible, including near deep-sea vents at temperatures well over 1,000 °C (1,800 °F), in basaltic  rocks deep below the surface of mars (as shown in figure 1.) (actually this is ON the surface of Mars) , and in very saline and acid environments along mars. There also is hard-hitting evidence that conditions on early Mars, when life arose on Earth, were Earth-like. That means that if there is life on earth then it is bound that there is or was life on mars.

To tell if one of our organisms were dead, alive, dormant, or nonliving, you use these eight characteristics of life. if they respond to stimuli wich also means if they change behavior when something stimulates their senses. Can they grow and develop. Do you know if they reproduce? Do they have metabolism or energy? Is there some sort of evolution from a specific object? It needs one or more cells for it to be living. Does it maintain or stay the same internally despite varying external conditions ? And do they have a universal genetic code.as shown in fig.2 (this wasn't one we discussed in class. (Our 8th characteristic was needs materials.)  This object has all eight characteristics of life.

//Ms. Mc - good general overview of the spacecraft explorations of Mars but you need to give specific findings about water and/or life on Mars (-1). You also were to discuss how you classify a Martian specimen as either alive, dead, dormant or nonliving (-1/2). -10%, 1 pt. late. 7.5/10//