In this The Daily Eco video we’re going to talk about RENEWABLE AND NON-RENEWABLE RESOURCES ☀️🌲💧 We’ll also explain the DIFFERENCES, TYPES and EXAMPLES. 🌋
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The different types of ecosystems 👉 https://www.youtube.com/watch?v=PBm0o5s9XW8
The 10 types of clouds 👉 https://www.youtube.com/watch?v=V43ln8HRz_M
Can our petroleum-based market economy make the switch to renewable resources? According to scientists, politicians and industrial leaders, a “biobased economy” is a sustainable alternative. What lies behind this optimism?
The biobased economy promises to help solve some of the world’s biggest problems, including climate change, species extinction, pesticide residues and depleted soil. It foresees plants, fungi and insects replacing environmentally unfriendly coal and petroleum as raw materials, and microorganisms being used to produce chemicals.
But even these renewable resources require a production process, and that harbors new potential dangers. These include land appropriation, the destruction of already dwindling natural ecosystems, and the exploitation of nature for profit to an ever-greater extent. This documentary examines the economic cycle as a whole, from the production of biomass to processing and finished products.
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Doodle Science teaches you high school physics in a less boring way in almost no time!
Script:
Renewable energy resources are being developed because we are running out of fossil fuels at an exponential rate.
The wind is produced as a result of giant convection currents in the Earth’s atmosphere, which are driven by heat energy from the sun. Wind turbines use the wind to drive turbines directly. The blades are connected to a housing, which contains gears linked to a generator. As the wind blows, it transfers some of its kinetic energy to the blades, which turn and drive the generator. The advantages are that there are no fuel costs and no harmful pollutant gases are produced. However, they depend on wind, if there is no wind, there’s no electricity.
Like the wind, water can be used to drive turbines directly. Wave machines use the kinetic energy in this movement to drive electricity generators. Another way of using the water is to build a tidal barrage over a river estuary to make use of the kinetic energy in the moving water. The barrage contains electricity generators, which are driven by the water rushing through tubes in the barrage. Hydroelectric power stations are dams built across a river valley. The water high up behind the dam contains gravitational potential energy. This is transferred to kinetic energy as the water rushes down through tubes inside the dam. The moving water drives electrical generators, which may be built inside the dam. Water produced energy is good because no harmful polluting gases are produced and tidal barrages and hydroelectric power stations are very reliable and can be easily switched on. However, tidal barrages destroy the habitat of estuary species and hydroelectricity dams flood farmland and push people from their homes.
Doodle Science teaches you high school physics in a less boring way in almost no time!
Script:
Fossil fuels are non-renewable energy resources; these are coal, oil and natural gas. They were formed from the remains of living organisms millions of years ago and they release heat energy when they are burned. This heat is used to turn water into steam, which is used to turn a turbine, which then drives a generator to generate electricity. There are downsides however, fossil fuels release sulphur dioxide and carbon dioxide which lead to acid rain and an increase in global warming.
Another form of non-renewable energy is Nuclear. The main nuclear fuels are uranium and plutonium. The nuclei of these large atoms are split in a process called nuclear fission to release a great deal of heat. The heat energy is again used to boil water. The kinetic energy in the expanding steam spins turbines, which then drive generators to produce electricity. Unlike fossil fuels, nuclear fuels do not produce carbon or sulphur dioxide. However, they do have the risk of a fault where large amounts of radioactive material could be released into the environment such as the disaster of Chernobyl in 1986. Video Rating: / 5
Did you know that for the world to function as we know it, it needs different types of energy, but on many occasions this energy pollutes our planet a lot.
In this video we are going to learn about the types of energy that do not pollute called: Renewable Energies or Green Energies.
Although they are numerous, we are going to know the most used ones:
SOLAR ENERGY
HYDROELECTRIC ENERGY
WIND ENERGY
GEOTHERMAL ENERGY
Video in Spanish: https://www.youtube.com/watch?v=Nwe4VFATIXw Video Rating: / 5
Keep going! Check out the next lesson and practice what you’re learning:
https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:fuel-types-and-uses-ii/e/fuel-types-and-uses-ii
Passive solar energy systems absorb heat directly from the sun without the use of mechanical and electric equipment, and energy cannot be collected or stored. Active solar energy systems use solar energy to heat a liquid through mechanical and electric equipment to collect and store the energy captured from the sun. Photovoltaic solar cells capture light energy from the sun and transform it directly into electrical energy. Their use is limited by the availability of sunlight.
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“Greenroof” by pnwra [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Green_Roof_(460698511).jpg
“Santa Fe adobe” by Carol m [Public domain], via Wikimedia Commons:
https://en.wikipedia.org/wiki/Adobe#/media/File:Santa_Fe_adobe.jpg
“Home awnings” by Conarty [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Home_Awnings.jpg
“Thermal solar collector” by Norbert Nagel [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Solar_heating_system_-_Thermosolaranlage_-_M%C3%B6rfelden-Walldorf_-_Germany.jpg
“Ivanpah” by Craig Butz [Public domain], via Wikimedia Commons:
https://en.wikipedia.org/wiki/Ivanpah_Solar_Power_Facility#/media/File:Ivanpah_Solar_Power_Facility_from_the_air_2014.jpg
“Heliostats” by Alexchris [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Type_of_Concentrated_solar_power.png
“Mersin CSP field” by Kohsman [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Mersin_CSP_field.jpg
“Solar calculator” by Rfassbind [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Solar_calculator_casio_fx115ES_crop.jpg
