Another week ends. This week, we were educated in 3D AutoCAD skills, MIG (Mechanized Inert Gas) Welding, CNC router work, and of course being asked an essential question. First off, I was bed-ridden for the first two days of the week. As consequence, I was NOT present for the 3D AutoCAD magic, and am thus rendered inept in the past proceedings. I was informed I will be taught later, which is a relief. I was quite looking forward to that particular part of AutoCAD skills. Next, our class learned how to use the MIG Welder. My group has been using it for the past quarter, so I already had basic knowledge. However, our teacher showed us the different parts of the MIG Welder, how the wire (electrode) feeds, how the flux core (for shielding) works, and how to make simple welds. The main three techniques he showed us were "beads", "tacks", and "stacking dimes". He also demonstrated how to weld two pieces of metal together.
The essential question of the week is: What is "fracking"?
"Fracking", or formally known as hydraulic fracturing, is a form of petroleum mining. The technique used is where miners drill in a metal drilling rod about a mile down, then turn in a direction parallel to the ground above. They then set off small explosives to fracture the stone and let petroleum get through. Miners will also shoot down a special synthetic liquid that keeps the cracks open. This allows for effective oil retrieval. The downside is that they sometimes hit water mains or piping, thus possibly poisoning people's water.
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