Monthly Archives: February 2014

Hydrofracking

The process, “hydraulic fracturing”, literally involves the smashing of rock with millions of gallons of water, along with sand and a undisclosed assortment of chemicals in order to bring gas to the surface. Developed in the late 1940’s to gain access to fossil energy deposits previously inaccessible to drilling operations, hydrofracking is a controversial oil and gas extraction technique.

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There are many risks and concerns with hydrofracking like:

  • Contamination of groundwater
  • Methane pollution and its impact on climate change
  • Air pollution impacts
  • Exposure to toxic chemicals
  • Blowouts due to gas explosion
  • Waste disposal
  • Large volume water use in water-deficient regions
  • Fracking-induced earthquakes
  • Workplace safety
  • Infrastructure degradation
  • • U.S. energy production (However, foreign companies are buying leases. The gas will be sold on the international market to highest bidders.)• Loss of property values
  • Loss of county property tax revenues
  • Greatly increased traffic and accidents
  •  Increased road damage from large trucks
  • Increased need to repair roads (with your tax dollars which to do: repair roads or cut school budget?)
  • Along with pros like…
  • Short-term jobs for a few local people
  • Short-term increased customers for local businesses
  • Profit for a few land owners; profit for a few mineral rights owners

On a more positive note, researchers say that hydrofracking has provided the states with an overabundance of cheap fossil fuel and brought the United States from being a gas imported just a few years ago to the verge of being a net exported of natural gas.

Lego Robots

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Over the past two weeks in ‘Contemporary Science and Innovation SCI 184’ we have been working as teams to analyze how the robot, a car made into small lego pieces, functions with the program LabView. Our group always ranges from 3-4 people, depending on the attendance of our initial team but whether or not it is the same members in the group it is easy to continue what we were doing in the previous class due to the instructions and basic understandings of the program.

The robot car has four wheels that have a ‘motor’, which determines how the car is going to run. There are two orange arrows and a yellow ‘play’ button. To connect the robot to the computer, we hooked the USB and attached it to the NXT to the computer and opened LabView.

LabView is a system-design platform and development environment for a visual programing language.

After entering different numbers, we were able to understand the key elements of the car and measure the circumference and the diameters. We were able to program how far or how short we wanted the car to move with the numbers we typed in. We finally disconnected the cord to the robot car and measured how far it could move and aimed at measuring it to 2 feet, in a perfect circle. When completing this we became very excited! The robot experiment allowed me to better understand how cars function via distance and was relevant to our energy and sustainable class.