Energy & Environment

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Biofuel

Keywords: biofuel, energy, solar radiation, transportation

Can plants be used to fuel my car?

A look at how much land is needed to plant corn so that the energy harvested is able to power a car for one year.

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6 years 43 weeks ago

Bottle Rockets

Keywords: air, bottle, force, fuel, pressure, rocket, thrust, water

Bottle Rockets - a future mode of transport?

This article explores the physics behind bottle rockets and how they work. It also discusses whether or not bottle rockets would be a viable means of transport.

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6 years 32 weeks ago

Capturing Solar Energy with Photovoltaic Cells

Keywords: Lend an Experiment (LEx), photovoltaic cell, photovoltaics, resistance, solar, solar cells, solar energy

Did you know that the amount of power from a solar panel depends on what it's connected to? Explore how photovoltaic panels work, converting light into electrical energy, and learn how you can find the maximum power output from a solar panel.

This activity is part of the LEx (Lend an Experiment) Climate Kit. Students use solar panels to generate electrical power, exploring how light energy can be turned into electricity. Students connect the photovoltaic cells to different loads to find their peak power output.

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1 year 14 weeks ago

Carbon Storage

Keywords: carbon dioxide, carbon emissions

Are ways to perform human control of the carbon in the atmosphere? How do we do it? Is it safe?

Humanity is not without means to control the carbon dioxide in the atmosphere. There are ways it can be sucked out of the air and placed deep underground. However, this is by no means a permanent solution and is not without its risks.

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1 year 33 weeks ago

Clean Coal

Keywords: energy, Fossil fuel, greenhouse gases, power

An oxymoron?

Calculating how much coal we have to burn in a typical large power station to produce 1 GWe for a year.

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6 years 41 weeks ago

Climate Models: Simulating the Earth

Keywords: climate, climate change, simulating data

Climate models can give us a great deal of information about what sort of rules the climate follows and how the climate might look like in the future. A climate model is the result of a simulation run on a virtual Earth. This simulation mimics the real Earth and its climate as well as any influences the planet might have on the climate. They are used to predict the future of the climate using computers.

The prediction of future climate is done using climate models, virtual Earths with their climates simulated many years into the future. These virtual Earths live inside computers and evolve according to complex equations solved for points in time. The results that these climate models give provide us with important information to make decisions relating to climate change before we encounter the potentially catastrophic consequences.

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1 year 33 weeks ago

CO2e

Keywords: carbon dioxide, CO2e, terminology

What does the "e" mean?

A brief primer on the meaning of "CO2e"

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5 years 6 days ago

Commuting by car or cycle - which is better?

Keywords: bicycle, Carbon footprint, consumption, cycling, energy, Food, spreadsheets

It's not actually that clear...

We set out to find how much of a change it would make environmentally if one cycled instead of drove to work and then further expanded our findings to include the variables of diet composition and material goods ownership.

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5 years 1 week ago

Comparing Energy and Heat Units

Keywords: BTU, cost, energy, greenhouse gases, oil barrel, quad, R-value, thermal conductivity, thermal resistance, unit conversion, Watts

How do I compare heat and energy values given in different units?

A look at how to compare the costs of natural gas, gasoline and electricity and how to convert between various heat units including R-values, U-values, BTU/h, W and more.

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6 years 37 weeks ago

Cool Roofs

Keywords: albedo, carbon dioxide, emission, energy, surface temperature

Can painting our roofs white offset tonnes of CO2 emissions??

In this article, we look at how we can save energy, reduce the Earth’s surface temperature and offset carbon dioxide emissions just by making our roofs and pavements a lighter colour!

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6 years 32 weeks ago
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