Anti-gravity devices, enabling us or our vehicles to float effortlessly through the air, have been an attractive image of futuristic world views for decades, but cancelling out gravity’s effects is no mean feat. Unless you create high frequency sound waves, … Continue reading Walking on Sound
Out of sight and therefore out of mind, most of us are unaware of just how much shipping pollutes. Ships burn diesel, emitting greenhouse gases in such quantities that, compared to individual countries, shipping is the world’s sixth largest contributor … Continue reading Clean Seas
Imagine if all you had to do to charge your mobile phone was to wear a baseball cap on a sunny day. The sun is the source of all energy on Earth; of life itself, in fact. Yet solar energy … Continue reading Solar Thread
Clean, clear skies and the end of global warming is a hope of many in the modern world, but there is still much work to be done to achieve this goal. Holding back the development of advanced renewable energy technologies … Continue reading Funding to Brighten the Future
Energy from the sun is clean and inexhaustible, but current technology is inefficient. At the moment, solar energy cannot compete with fossil fuels on a cost basis. But work carried out at the National Renewable Energy Laboratory (NREL) has shown a way … Continue reading Boost for Renewable Energy
When the oil wells finally run dry, or when we decide we really need to deal with rising atmospheric CO2, what will the fuel of the future look like? It may look very much the same as it does today. … Continue reading Future Fuel From Air and Water
In former times, farmers used to rotate their crops, so that a field would have different crops grown in it each year over three of four years until the cycle started again. Often, in mixed farms, one year’s ‘crop’ would be the livestock allowed to feed on the field, resting the soil and replenishing it with their manure. The rationale for this was that different plants used different nutrients and attracted different pests and diseases. By moving the crops around, farmers could avoid depleting the soil of key nutrients and prevent the build-up of parasites. Then modern farming vastly reduced … Continue reading Farming – Return to the Past?
In a hundred year’s time people will probably look back to today and be scandalized by how much energy we waste. Currently, heat energy leaks out into our atmosphere at a phenomenal rate, energy that could be saved and converted into power. Researchers in the United States have developed a new material, a derivative of the semi-conductor lead telluride, that is highly efficient at converting thermal energy into electricity. Described by Tom Nilgesa of Munich Technical University as “a giant leap for thermoelectrics”, this new invention gives us hope for a more energy-efficient future. Continue reading Powering Up For the Future