Coastal Geology

How have the history and culture of coastal areas been affected by their geology?

By animals and fossils accumulate into the earths surface. As they die, their shells or what ever it may be accumulate on the bottom, as they accumulate their folds have been eroded into ridges. Over years this happens and it cannot be changed. It is like evolution for our earths crust and it is only going to keep happening by what ever it may be that is living and dying on it.

One example of this happening is by the lab activity that we did in class "dance of the continents". The continents of our earth move and develop over the course of years and they are never going to stop because of our earth spinning and the plate tectonics moving. The plate tectonics are plates deep in the earth that move or shift every so often.

That is how history and culture have affected the coastal areas by their geology over the course of many years.

Dynamic earth

What forces do scientists think cause tectonic plates to move?

Its just when two plates slide past each other, that creates tension which usually creates an earthquake or a volcanic eruption, or even a tsunami. When Tectonic plates move and cause earthquakes, that's most commonly a strike slip fault. that's what the San Andreas fault is, a strike slip.

Movement of tectonic plates is driven by the Earths internal, heat which causes convection in the mantle. Rocks in the mantle behave the same way, but because they are solid, the movement is millions times slower. the rocks in the mantle have a small amount of melt.

According to the theory of plate tectonics, what changes will occur to the oceans and the continents over the next millions of years?

The oceans and the continents will move over time and the continents will possibly puzzle back up with each other. Also the oceans will become bigger and new oceans will form. Our earth orbits and our plate tectonics move so therefore our continents and oceans will move and change very slowly.

1.The field of navigation includes four general categories: land navigation, marine navigation, aeronautic navigation, and space navigation.Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.


2. It would have helped because it would have shown where to go from the school yard. The Compass would have shown you North and south of where you are standing. Also you can tell where u are by using a compass because all you have to do is follow the direction that you want to be in.

Chart makers and navigators both shared the skill of being able to read and design charts. when reading a chart it is almost like reading a map, you are able to tell where you are and what direction each place is on the chart. Also navigators read the longitude and latitude of the chart that the chart makers made. Each group of people showed significant amount of skill in charts made by others which often had long distances between the landmarks on the charts.

6. On long Voyages, estimating distance becomes more important than for short trips. Early open ocean navigators estimate the distance they had traveled by compasses and maps. the maps had shown the latitude and longitude of where they were and how far it was they had to travel. Also the compasses had shown them the way it was they wanted to go and they would just follow it from there.


RESEARCH QUESTIONS:

who exactly made the charts and maps of the ocean and how did they figure it out?

how is a compass relevant for hikers and boaters to use?


I think that modern navigators should learn the skill of detecting where they are without using a gps. I believe this because when people get lost they usually do not have the technology that u would have if you were lost. I think that navigators should be able to detect where they are especially because there job is to navigate and you should be able to know where it is you are going without technology.

What are the historical roots of ocean exploration?

Brandon Barlow

Class B

Oceanography

So far in Oceanography we have learned many things. These past few weeks we have been learning about historical roots of Ocean exploration. One thing that the class did was we had to do a project on a historical person. The person that i had to do research on was John Harrison. While doing research  i have learned that John Harrsion created the chronometer, which is an instrument for measuring time, especially one designed to keep accurate time in spite of motion or variations in temperature, humidity, and air pressure. Chronometers were first developed for marine navigation, being used in conjunction with astronomical observation to determine longitude. Another thing that i have learned in Oceanography is how to locate the North Star. The North Star lies at the end of the handle of the Little Dipper and is not the brightest star in the sky. The North Star actually has medium brightness. One other thing that we have learned this past week is how to use compasses. When you use a compass you have to make sure it is on a flat surface and the arows are settled in one direction, you then proceed in the direction you want to go the compass was invented in about 206 BC by the Chinese, Han Dynasty. It was a magnetic compass used for maritime navigation.

People such as John Harrison took a huge impact back then on there discoveries. Another man that we learned about was Christopher Colombus who  was an Italian explorer who sailed across the Atlantic Ocean in 1492, hoping to find a route to India in order to trade for spices. He made a total of four trips to the Caribbean and South America during the years 1492-1504. Another thing we learned about was the earliest recorded sea voyage, which was the Egyptians, at about 3200 BC. according to the Bible Noah's Ark was before the Egyptians first sea voyage, but there is no official record of it happening.

Life waves

1. Which color had the lowest frequency?

                                    Red

2. What is the relationship of the red wavelength to the green wavelength?

     The Red has the Higher wave length compared to the green.

 

3. What is the relationship of the red wavelength to the violet wavelength?

 The Red has the Highest wavelength where as violet has the lowest wavelength.

 

4. What is the relationship of the red frequency to the green frequency?

 Red has the lower frequency than Green

 

5. What is the relationship of the red frequency to the violet frequency?

 Red has the lowest frequency and violet has the highest frequency

 

6. If waves are moving at the same speed, what is the relationship between wavelength and frequency?

 Wave length and frequency are two different things, wave length is the wave moving anf frequency is how fast the wave is moving

 

7. Based on the above relationship, if you were to look at a blue wave, would it have a higher or lower frequency than the green wave? 

It has a lower frequency than the green wave.

                                                                     

8. Based on the above relationship, if you were to look at an orange wave, would it have a longer or shorter wavelength than the green wave?

                          

 It would have a shorter wavelength than the green.

9. If Velocity = Distance / Time, what was the velocity of the waves in this lab?

Velocity

 

Rube Goldberg Reflection

Rube Goldberg

Throughout this entire assignment I have learned many things involving Rube Goldberg. Me and my partner Jared started off slow but as soon as we started creating our design we were able come up with ideas fast and then build them. One thing that set us back in the class was figuring out what we were going to do throughout the beginning of the assignment. Our first drawing did not accurately represent our machine, it was messy and it didn't show all our steps. However our outcome of the project was a success and was also unique in my eyes. We had five out of six simple machines including sever ramps, and lever, wedge, pulley, and a wheel and axle. And each an every one of them had an important role to our project.

Jared and I put every idea that we could think of into our project. When we had finished our project we had to calculate the heights of our ramps and also the mass of the golf ball. As we recorded that information we then had to describe our project on paper by drawing it and describing our simple machines. Jared and I had finished that quick and were able to stay on task throughout that entire part of the project.

Our Rube Goldberg Project consisted of 10 steps including popping the balloon. The ten steps took some time to think of but we were able to get them done before the due date. At the end of the project we ended up popping the balloon with an book and thumb tacs. At this stage we had finished our project. Jared and I had learned a lot throughout this project and hope to learn more as the year continues.



Rube Goldberg

Rube Goldberg was a man of many talents, he had created many designs that were just mind blowing. At a young age he loved to draw and sketch objects. He also was an athlete growing up. But as he got older Goldberg was fascinated by the advancement in technology and thought it was humorous as people either embraced change and the benefits technology brought or were reluctant as it increased dependency and laziness. Goldberg won many awards from his creations such as his drawing about the world being on the edge of nuclear devastation. Goldberg's inventions had started to become famous because they were starting to be advertised on television his last was seen on the Washington museum of American history. Goldberg was a man who was fascinated by the advancement of technology as am I.

Pulley: a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.

Wheel and axle: a simple lifting machine consisting of a rope that unwinds from a wheel onto a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.

Lever: a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.

Inclined Plane: a plane inclined at an angle to the horizontal.