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What Has More Energy?
Transcript of What Has More Energy?
BY:Connor Cox and Randy Lamica
What everyday item has the most energy?
1 Remote Control Dodge Ram Truck RC
Why is nuclear energy so powerful?
Nuclear energy comes from Uranium, a nonrenewable resource that must be mined.
How does nuculer energy work?
What do we use energy for?
(MINNEAPOLIS) – If we are going to make fundamental changes in the way we use energy, we have to understand how we use it now.
When was energy discovered?
2000 BC - Chinese First to Use Coal as an Energy Source
"According to the report of an early missionary to China, coal was already being burned there for heating and cooking, and had been so employed for up to 4000 years. Likewise, in early medieval Europe, the existence of coal was no secret, but the 'black stone' was regarded as an inferior fuel because it produced so much soot and smoke... Thus, until the 13th century, it was largely ignored in favor of wood.
Where do we get energy?
Our Energy Sources
Two questions immediately strike us: Will we have enough affordable energy in the near future? What will we do for the long term?
The answers depend on our inventory of sources. Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix. These sources originate mostly in our local star, the Sun. Electricity falls into its own category because it’s an energy carrier and not a primary source. Here we explore the pros and cons of each resource and look at some of the emerging technologies that could transform our energy situation in the future.
Relative contributions of energy sources to total U.S. energy consumption in 2008.