Monday, December 12, 2011

On bioethanol

I learned about bioethanol when we went to the lab at the law school. Bioethanol is created out of sugars, and those can be gotten from a number of plants, but mostly just those that have a lot of fibrous bits in them. Dr. Rood told us about his father and the way that he created a system of production that makes both paper and fuel out of banana trees.

I am afraid that those trees are grown on plantations with wage slavery populations. That is sad to me if it is true.

We also learned that diesel engines freeze up in the winter and that an owner would have to plug their car in over night in order to make sure that their car did not freeze.

On Mitochondrial Eve

Mitochindrial Eve is an ancestor to all human beings. She is the first humanoid to have mitochondria in her cell structure. Mitochondria, and the DNA that creates mitochondria, only exists in the egg. That means that mitochondrial DNA passes from mother to child and has nothing to do with the father.

This means that we can trace mitochondrial DNA much more easily than any other kind of DNA. It does not have nearly as many mixups and interruptions as normal DNA because it does not come from both parents.

Mitochondrial eve probably looked nothing like a human being, but most images on the internet really attempt to make her look like we do. That is probably wrong.

On Amphioxus

Amphioxi are famous because they provide a way of learning about the origins of vertebrates. They have certain holdover genes that they share with other vertebrates, even though they split with the majority of vertebrates over 500 million years ago. Evolutionary theorists care about them precisely because of that function--they are basically the simplest vertebrates.

Here is a picture of one:


On Macon Dog Park

I didn't actually make it to the dog park. I made it about halfway across the park before it started raining and lightening, and on my way back from that, it rained so hard that my backpack and clothes were absolutely soaked. It wasn't a great experience.

But I did learn two things about the dog park. The first thing that I learned is that dog parks are a great place for communities to get together. People who love dogs get to see one another and talk to one another, and it brings a certain kind of superness to a community. I can get behind that.

I also learned that dogs can get the parvo virus there, which means that you shouldn't bring puppies to dog parks. Dr. Rood said that it would "basically be a death sentence." Luckily, I don't own dogs, so that isn't a big issue for me. But people should know.

Wednesday, November 16, 2011

On Darwin's Dilemma

I did not enjoy this movie. It was made by a blatant Intelligent Design propaganda group. Most of the "experts" in the film are employed by The Discovery Institute, a group that specifically does science with the telos of proving the existence of an intelligent designer.

While the questions that they raise are pertinent, such as questions about the Cambrian explosion and the different phylum classes, the solutions and alternatives that they present are unscientific and ridiculous. The use of science to promote an absolutely unscientific ideology makes me sad.

I don't think showing the film was a good idea, and I think that it should have been discussed and clarified in class.

Ocmulgee National Monument

We went to the Ocmulgee National Monument for this lab.

It was pretty amazing, actually. We went to a new place that I had never been before--a creek on the back side of the park. I really enjoy the park, and even though a park ranger talked a lot and really only told us about a lot of conjecture and very little actual information, he was still nice, and he pointed out the Clovis spear or arrow head in the large room of the visitor's center.

Other than that, we really did things that I would normally do at t he park. We walked to the large Temple mound and stood on top of it. The swamp looked very nice.

The real learning of the lab took place at the creek. We were able to look at all the strata that make up the landscape. The creek was like a scar in the forest--it was very deep.

We also saw kaolin, a kind of clay that people in Georgia like to eat and chew on to settle their stomachs. But that is really, really weird.

Feedback (The Negative Kind)


A negative feedback loop is when a system overcompensates for a phenomenon by feeding back into itself and recreating a homeostatic environment.

Dr. Rood helped us create a chart based on the experiment that he did on himself in class. He ate a Snickers bar really quickly and then drank a soda and measured the reaction that his body had to the sugar. It was pretty amazing. The chart is at the top of this post!


Wednesday, October 5, 2011

ALL THAT SOIL!

So last Wednesday we had a lab that took us to a community garden in Macon, GA that is maintained through MaconRoots.org. It's a pretty cool thing, though I'm not sure if organic gardening means letting ants destroy a large portion of your crop. There has to be some kind of natural treatment for ants.

In any case, we did a lot of different things. We took soil samples and looked that different layers of dirt in the area, though we really only barely got down into the clay layer. We also dug up some dirt and felt it with our hands. Sometime around then, we sifted some dirt, though that was not super successful since it was pretty wet and rainy and whatnot that day.

I remember being cold.

Then we ate some different things from the garden and threw dirt at Dr. Rood and Alvin Huff couldn't figure out how a faucet works so I had to help him out with that.

Also, I found out about inceptisols, which are soils that are not very developed. It's like going back in time--soil time, if you will. This is a helpful link for learning about them.

And that was my lab experience.

Tuesday, September 27, 2011

Trees



Flowering Dogwood -- Cornus florid
American Holly -- Ilex opac

Live Oak -- Quercus virginian



Southern Magnolia -- Magnolia grandiflora


Long-leaf Pine -- Pinus palustri

Sunday, September 25, 2011

Rivertime Extravaganza!

So we went to the river and did a lot of stuff. Well, I picked up trash, but other people did lots of interesting things with measurements and strings and flow and all that info.

This map that follows is a map of clam concentrations on the river. From this map, we learned that clams like more shallow water. The deeper water had fewer clams. We also learned that birds or other animals will dig up the clams on the sand banks/bars and eat them, which is why there were no living clams sometimes.





















The second map is the river transec map. I was not part of the group that collected this data, so I made the map with four equally divided parts in order to give an estimation of the number of feet across the river. By comparing the map I have made with the graph that follows it, it becomes easy to see the shape of the river bottom.


Thursday, September 8, 2011

More Maps!

This is a map I made using Google Earth. It is of the Ocmulgee National Monument. I have a place marker, a colored area of the swamp lake, and a path showing how to get from the first mound to the temple mound.

Wednesday, September 7, 2011

MAPS!

Map 1: Dot Density
A dot density map uses dots as a way to show the concentration in a particular area as shown by a data set. For example, if a dot is 1 million people, major cities in the United States would have a dense number of dots on them compared to rural areas, which would have very few. Dot density maps are useful for showing the number of things, events, or occurances over a large area.

Map 2: Chloropleth
A chloropleth map is one that uses distinct areas, and shading of those areas, in order to convey information about those areas. Political maps used to show the swaying of states toward Democrats and Republicans are often chloropleth maps. The colors used in the map usually convey a density of concentration--an election map that is deep red is associated with a Republican state is contrasted against a light red state that is not as strongly associated with the party.

Map 3: Isarithmic
It's a kind of map that shows the areas where things occur. For example, one would use an isarithmic map in order to show weather patterns in an area. The cordoned off pieces of the map are called chorograms. They show distinct pieces of data that separate sections of map, comprised of data sets, off from other, different sections.

For example, I have created the isarithmic map of rain fall patterns in GA below.



Monday, September 5, 2011

Blog 1: CAPYBARA!






















I think the Capybara is really cool. This picture is particularly cool because it has a boss little dude being all, "Hey bro, touch noses!" and the mother capybara is all, "I'm way bigger than you." It is also the largest rodent in the world. A giant rat. Or, like, a giant squirrel.

Here is a video of a capybara doing all kinds of stuff for a frozen treat! I would slide down a slide for a frozen blueberry yogurt!