Tag Archives: Innovation

Experiment 2: Force and Energy, Velocity and Acceleration, and Power.

2 Replies

Me and my partner Maria Sidenko were given a unique opportunity to see how Newton’s 2nd Law works in real life in our Science&Innovation class. Our task was to use the Lego Mindstorm motor to lift weights with a pulley in order to see how Newton’s 2nd Law works. Newton’s second law of motion shows the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables – the net force acting upon the object and the mass of the object. We were using the VI to converse the results into the excel format which we later used to calculate Power, Acceleration as well as see how visually the results are(By creating a “Scatter” and a “Trendline”). We got the following table:

1

2 3 We have computed the potential energy by using the formula: Potential energy = m*g*h. Then we determined how the battery energy drainage changes throughout the experiment.  Since the energy of the battery was converted to the potential energy of the masses, we had greater masses and as a result got the greater battery drainage.  The experiment clearly showed us how the Newton’s 2nd Law works and how the potential energy is converted.

Natural Gas Hydraulic Fracturing.

1 Reply

All of us use something every day. Everything is made out of something. Phones, furniture, cars, planes – all of those require some natural resources. Nowadays the amount of resources which humanity uses decreases every day. Scientists are working hard to find new ways to extract such resources like oil, natural gas and other. Natural gas at the same time runs out quite fast but recently a new way to obtain it has been found – the Hydraulic Fracturing which allows to increase or restore the rate at which fluids, such as petroleum, water, or natural gas. Such technology makes the production of natural gas possible even from rock formations deep below the earth’s surface. Fractures provide a conductive path connecting a larger volume of the reservoir to the well. So-called “super fracing”, which creates cracks deeper in the rock formation to release more oil and gas, will increase efficiency of hydraulic fracturing. Hydraulic fracturing is also applied in industry in many ways, for example:

  • To stimulate groundwater wells.
  • To precondition or induce rock to cave in mining.
  • As a means of enhancing waste remediation processes, usually hydrocarbon waste or spills.
  • To dispose of waste by injection into deep rock formations.
  • As a method to measure the stress in the earth.
  • For heat extraction to produce electricity in an enhanced geothermal systems.
  • To increase injection rates for geologic sequestration of CO2.

horizwell

Scientist predict that Hydraulic fracturing will account about 70% of natural gas development in the future. Hydraulic fracturing as well as horizontal drilling use the latest technologies and such technology is much more viable for companies to recover natural gas. For instance, In the United States, 45% of domestic natural gas production and 17% of oil production would be lost within 5 years without usage of hydraulic fracturing. In conclusion, we can say that such technology is very useful and has a great potential in future for many world companies. And if companies will start using this technology the resource decreasing will be drastically stopped!

References:

  1. National Petroleum Council, Prudent Development: Realizing the Potential of North America’s Abundant Natural Gas and Oil Resources, September 15, 2011.
  2. IHS Global Insight, The Economic and Employment Contributions of Natural Gas in the United States, December 2011
  3. Wikipedia: Hydraulic Fracturing (http://en.wikipedia.org/wiki/Hydraulic_fracturing)