Facts compiled by:

Dan Swafford
4-H Project Associate
Virginia 4-H State Office
Virginia Tech

(Page Updated Monthly)


Virginia 4-H Military Clubs

Funded by 4-H Military Partnership Grant



Interesting Stem Facts




TECHNOLOGY FACTS

  • "In 1892, John Froelich invented and built the first gasoline/petrol-powered tractor in Clayton County, Iowa"


SCIENCE FACTS

  • "Mosquitos are attracted most to the color blue."
  • Agriscience is the application of scientific principles to agriculture. Agriculture- The activities related to the production of plants, animals and related processes.




MATH FACTS

  • "745.7 watts = 1 horsepower"
  • "There are 43,560 sq.ft. in an Acre."



ENGINEERING FACTS

  • "745.7 watts = 1 horsepower"
  • "In 1831 Cyrus McCormick  aged 22, from the Shenandoah Valley in Virginia, tried his hand at building a reaper.  The machine consisted of a vibrating cutting blade, a reel to bring the grain within its reach, and a platform to receive the falling grain. The reaper embodied the principles essential to all subsequent grain-cutting machines"

  • "The first curriculum in agricultural engineering was established at Iowa State University by Professor J. B. Davidson in 1903"


For the past couple of years you have received “Youth Energy Fact of the Week”.   This year information has been expanded to cover all areas of STEM.  Beginning August 14, 2016, we will  introduce a  “Science fact of the Week: followed by Technology, Engineering and Math.   I hope you will find these fact both interesting and educational.



ENERGY FACTS

  • " Charging an iphone or android phone under normal use conditions will typically cost under a dollar for a full year."
  • " The major drawbacks of wind energy are: high installation costs, change in wind speed and not suitable for all areas."
  • "The United States produces half of its electricity from coal. China uses coal to generate more than three-fourths of its electricity. Australia, Poland, and "South Africa produce an even greater percentage. Overall, coal makes up 2/5 of the world’s electricity generation."
  • "The amount of energy Americans use doubles every 20 years."
  • " Half the world does not have electricity."
  • " The earth receives about 1,366 watts of direct solar radiation per square meter."
  • "At the time being, there are over 10,000 alternative fueling stations in the U.S. that provide hydrogen, electricity, biodesel and even natural gas."
  • "Hydropower is the largest contributor of all renewable energy sources and accounts for 6.7% of worldwide electricity production "
  • "More than half of all the homes in the United States use natural gas - almost 62 million families."
  • "More than 2.4 million acres of mined land have been reclaimed over the past 25 years—that’s an area larger than the state of Delaware."
  • "Iowa and South Dakota generated more than 25% of their energy from wind during 2013."
  • "The solar technology can be distinguished into active and passive. Photovoltaic panels and solar thermal collectors which harness solar energy are examples of active solar technology. Passive technology includes constructing rooms to improve air circulation, orienting space to favorably use sunlight."
  • "Biomass refers to the organic material that is used for production of energy. This energy production process is referred to as Bioenergy.  Biomass is primarily found in the form of living or recently living plants and biological wastes from industrial and home use."
  • "Wind farms can be constructed in off shore locations. Winds are steadier and stronger in offshore locations but setting up infrastructure is costlier."
  • "By relying on battery backup, solar energy can even provide electricity 24×7, even on cloudy days and at night"
  • "Geothermal energy refers to the production of energy using the internal heat of the Earth’s crust.  This heat comes from the radioactive decay of minerals and continual heat loss from the earth’s original formation."
  •  "If all the natural gas pipelines in the U.S.  were connected to each other they would stretch to and from the moon almost three times."
  • "The U.S. produces about 1 billion tons of coal annually, a little less than 12% of the world’s supply—second only to China."
  • "Wood Heat Facts-A wood lot can produce from 1 to 2  cords of fire wood per acres a year. "
  • "Nearly one hundred nuclear facilities in 30 states provide nearly 20 percent of all U.S. electricity"
  • "World-wide, about 20% of all electricity is generated by hydropower.  Hydropower provides about 10% of the electricity in the United States"
  • "The wind energy has high construction cost, but its benefits for ecology                                                 make wind energy very acceptable energy source."
  • "Solar energy systems do not produce air pollutants or carbon dioxide.
  • "Natural gas is the lowest-carbon fossil fuel, odorless, colorless and nontoxic.
  • "Anthracite is a hard, shiny, black coal that burns with a blue, smokeless flame. While most forms of coal are associated with sedimentary rock, anthracite undergoes metamorphism and is linked to metamorphic rocks"
  • "Wind power can be harnessed in a number of different ways. For example, windmills create mechanical energy, sails move boats and wind turbines generate electricity"
  •  "The solar technology can be distinguished into active and passive. Photovoltaic panels and solar thermal collectors which harness solar energy are examples of active solar technology. Passive technology includes constructing rooms to improve air circulation, orienting space to favorably use sunlight."
  • "One large wind turbine can produce enough electricity to power over 500 homes."
  • The largest turbines can harness energy to power 600 American homes. These turbines form wind farms and hundreds are arranged in lines in windy spots like a ridge. A small turbine in the back yard can easily power a small business or a home.
  • "Coal is the world’s largest source of energy for the production of electricity"
  • Solar technology can be distinguished into active and passive. Photovoltaic panels and solar thermal collectors which harness solar energy are examples of active solar technology. Passive technology includes constructing rooms to improve air circulation, orienting space to favorably use sunlight.
  • "There’s enough on-shore wind in America to power the country 10 times over."
  • Solar powered hot water systems utilize solar energy to heat water. In certain areas, 60 to 70% of water used domestically for temperatures as high as 140 F.  Can be made available by solar heating.
  • "Wind power is unique  for the fact that it does not use any water. By 2030, wind power will save around 30 trillion bottles of water in the U.S."
  • "Around 80 different countries use wind power to generate electricity commercially "
  • "Wind power can be harnessed in a number of different ways. For example, windmills create mechanical energy, sails move boats and wind turbines generate electricity"
  • "The average American spends 40 cents a year to charge their cell phone"
  • "Hybrid cars produce  90% less pollutants than comparable non-hybrid cars. By putting less harmful chemicals in the environment, the harmful effects of pollution can be halted or even reversed."
  • "Nearly all the natural gas consumed in North America - 98 percent - is produced in the U.S. and Canada."
  • "Coal starts off as plant matter at the bottom of water. It is eventually covered and deeply buried by sediments where over time metamorphosis (a change in form) takes place."
  • " The space industry was an early adopter of solar technology. In the late 1950s the space industry began to use solar technology to provide power aboard spacecrafts. The Vanguard 1 -- the first artificial earth satellite powered by solar cells -- remains the oldest man-made satellite in orbit – logging more than 6 billion miles



  •