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Month: March 2018

Exploring Nuclear Energy

When you hear the word “nuclear” as an American it may conjure up images of the 2011 nuclear power plant explosion in Japan, commonly referred to as the “Fukushima Accident”or even discussions of nuclear weapons or nuclear war with the United States and and foreign nations. It is true, this form of energy is the center of many controversial debates but within the political sphere, not much space has been provided to explore the processes and future implications that comes with using this form of energy. Taking a scientific approach perhaps, will help the public to better understand the why and the how behind something so often overlooked. Continue reading Exploring Nuclear Energy

Geothermal Energy: Powering Iceland’s Future

 

Blue Lagoon thermal bath in Reykjanes, Iceland; Source: time.com [1]  
Iceland is one of the world’s most remarkable geological wonders. Although the country is young it possesses many  unique features that are still under research. In Iceland, there is what is called the Mid-Atlantic Ridge, which was formed by divergent tectonic plates which are plates in the earth’s surface that move apart at a slow rate after a very long period of time, a process called sea floor spreading. [2]    More specifically, the ridge was formed by divergent movements between the ” Eurasian and North American, and African and South American Plates”[2]   This continuous movement of the plates makes way for lava from  deep within the earth to be pushed upwards and creating a “new crust”. [2]    Although ridges exist in other parts of the world, the changes are often hidden on the sea floor while the Mid-Atlantic Ridge in Iceland is visible on the surface. [3]   Another extraordinary aspect about visiting this site is that you will have the ability to put one foot on the North American Plate and one foot on the Eurasian Plate.[3]   Continue reading Geothermal Energy: Powering Iceland’s Future

Thermoelectric Energy: How it Works and its Applications

Thomas Johann Seebeck, founder of the Seebeck Effect ; Source: thermoelectrics.caltech.edu

A Short History of Thermoelectrics 

With every discussion of old and new emerging concepts, theories, and technologies within the STEM field, comes an introduction of the figures behind them. Thomas Johann Seebeck is certainly not the only scientist that had a lasting influence upon the development of thermoelectric technologies, but he is just one among many who catalyzed research into this energy source. In 1821, Seebeck made the discovery that different temperatures had the ability to move a compass magnet.[1]  Although he had initially thought that this was caused by magnetism created by the temperature difference and the “Earth’s magnetic field”, he later discovered that the temperature difference produced electric potential (voltage)  which can generate electric current in a closed circuit, now known as the Seebeck Effect. [1] 

Continue reading Thermoelectric Energy: How it Works and its Applications

Lab 5: Solar Cells

What color light do you think generates the most voltage? ; Source: FreeStockPhotos.biz

 

Objective:

Solar energy is a type of renewable energy that can make your lifestyle more sustainable, especially if you are looking to reduce your footprint. In fact, you may have seen solar panels on homes in residential areas – these panels collect solar energy from the sun and convert it into solar power to power our homes, any excess any is either fed back to power grid or even sold back to power companies. In lab 5, we had the opportunity to take solar energy into the laboratory setting by introducing a new piece of equipment, the NXT with a light sensor. The goal of the lab is to gain hands-on experience on observing how solar energy is absorbed when manipulated in a lab setting.

Continue reading Lab 5: Solar Cells

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