Why is electricity important ?

Analog signals and digital signals are different because analog signals are a signal that varies smoothly in time and digital signals do not vary smoothly, but changes in jumps or steps. A semiconductor is an element that is a poorer conductor of electricity than metal but a better conductor of nonmetals. Semiconductors are useful in electronic devices because it makes the electricity flow where you want it to go because of its ability to conduct nonmetals. Diodes, transistors, and integrated are circuits used to make solid- state components.

My thoughts about the searching for life on mars is pretty cool and will be a great opportunity to find out more about electronics. The importance of electronic devices in a space mission where the goal is to travel to mars and search for life is so your mission can run smoothly, so there’s not any major problems and to make people’s life easier. Also another reason that you will need to search for life is you might need something like a device that searches for movement or for your space ship to move, and if you need to talk to the people that aren’t in space but on earth so they can tell you where you are, you might need electricity for that.


The Hero Engine 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. The various ways the early Chinese employed rockets was the Chinese began experimenting with the ADF_hero.JPGgunpowder-filled tubes. At some point, they attached bamboo tubes to arrows and launched them with bows. Soon they discovered that these gunpowder tubes could launch themselves just by the power produced from the escaping gas.

Konstantin Tsiolkovsky’s contribution to modern rocketry was coming up with the idea to explore space by rocket. The significance of Goddard’s achievement on March 16, 1926 was Goddard achieved the first successful flight with a liquid- propellant rocket. Verein fur Raumschiffahrt developed the V-2 rocket because it was use against London in World War II. NASA was formed because they wanted peaceful exploration of space for the benefit of all humankind. The history behind its formation was, the United States followed the Soviet Union with a satellite of its own.


Rocket Stages Animation

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Rocket Parts

Rocket Experiment
When it was time for our rocket to be launched, it went straight up, and you couldn't see it for a while. Leaving only a trail of smoke that smelt incredibly bad! But then, when it reached its highest point, you could finally see it. Then it shot out its parachute, but it didn't lie all the way out like it was supposed to. Finally the rocket came down gracefully with its parachute on the pitcher’s mound on the baseball field, on its side. The purpose of this experiment was to find ADF_rocketgraph.JPG
out the measurements of the rocket that we made. The result of my rocket was the mass was 44.1. The altitude angle was 40 and altitude using trigonometry was 83.90996312. My hypothesis was right because the heavier rockets didn’t get higher than the lighter rockets.

The mass of the rocket did appear to affect the altitude of the rocket because the numbers were close to together and if the mass wasn't there. The rocket could have been improved by using less paint when decorating because the amount of paint for the dots was too much paint and caused the rocket to slow down, another thing that could have been improved is more recovery wadding so the parachute was sure not to get burned, and work properly.

The Importance of Astronomy in the Search for Life on Mars

The importance of astronomy in the search for life on Mars is so we know more about space and our universe. For example, if Mars had life we would probably find a way to use it as a second planet to go to. We could also use it colonize and or use the planet as a dumping ground. We also might try and capture one of the things living on Mars, hold it captive, do tests on it, and experiments to see what happens. As soon as something goes wrong we get another one. Would you like it if another species on another planet were doing it to us?

To learn more about astronomy go to this link: Astronomy_ADF

History of Robotics

The history of robotics is simple. In 350 B.C, a mathematician named Archytas created a robotic bird. He called it "The Pigeon" and the movements of real birds. It was powered by steam and actually flew. It helped for other people to study flight. Then, a physicist named Ctesibus invented a water clock. His water clock was very famous around 200 B.C. Then in 1495, another robot was invented by Leonardo DaVinci. It looked light a knight in shining armor standing up and then would make movements like a real knight to entertain royal families. Later, robots kept advancing as they ranged from recreating anatomy and even automobiles.

In 1946 was the world's first computer. It weighed roughly 30 tons and was as big as two semi-trucks. As things stared to advance even more through the years, the computer started to get smaller. The first Vostok was launched in 1961 was the first rocket ship ever launched constructed by Russia. In 1969, a man named Victor Scheinman invented the Stanford Arm which was a robotic arm that still impacts robotic arms today. Then, in 1973, Martin Cooper created the world's first cell phone, one of the most used devices in current life. The Hubble Space Telescope was launched into the atmosphere and beyond in 1990 to observe our planet from the outside. 1998 was the year that LEGO released the MINDSTORMS robot. Now robots are used in factories as parts of machinery and smaller robots are found in houses commonly like cellphones.


Programming Robots
Motors can be programmed to move a robot by hooking up the robot to the cod that's hooked up the your computer . The different types of robot movements possible is spinning , dancing, going, straight, zigzag, and backwards. But I'm sure there are many more. Some of the challenges of using motors with a robot for my group was to make sure every little thing was just right or it wouldn't work. It could also be something as easy as we weren't on the right setting.


A sensor is something that is very sensitive device that can sense motions or sounds. The different types of sensors are ones that can detect motions or sounds like I said before, or light, temperature, and radiation level. The sensors can be used to help your robot perform tasks by sensing what's in front of it, so it doesn't run into anything, and to take measurements and temperatures, because you want to know all this tuff before you actually go up there so you this is why you send the robot first.


There are over 2 million different types of animals and plants in the world. The things something needs to be to be alive is to be made of cells, needing materials like water, minerals, and air. They need to be homeostatic respond to stimuli which means to have either a negative or a positive response to something. They also need to be able to reproduce sexually or asexually, they need to grow, adapted, respire, and produce.

We all should know by now, that if something is made of cells, must need materials, must be homeostatic, must respond to stimuli, must reproduce, must grow, must be adapted to its environment, and must have respiration it has life. It's the most important thing to know on a search for life on a planet, because once you are up on the planet, you must know how to determine if something is living, non- living, or dead. Without knowing about that, you would be clueless to whether something is living, dead, or nonliving. Without the knowledge to know all of this, it would be pointless to be on another planet, and spend all of that money on nothing.