Utilities are starting to invest in big batteries instead of building new power plants
Due to their decreasing costs, lithium-ion batteries now dominate a range of applications including electric vehicles, computers and consumer electronics.
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Engineering wave reflections with power flow-conformal metamirrors
Metasurfaces are two-dimensional (2-D) metamaterials that can control scattering waves of a light beam. Their applications include thin-sheet polarizers, beam splitters, beam steerers and lenses. These structures can control ...
A nonvolatile spintronics-based 50uW microcontroller unit operating at 200MHz
Researchers at Tohoku University have announced the development of a nonvolatile microcontroller unit (MCU) which achieves both high performance and ultra-low power by utilizing spintronics-based VLSI design technology.
Delhi's complicated air pollution problem
According to the World Health Organization, Delhi is the world's most polluted large city. And it's only going to get worse if something isn't done about it, say some experts in an article in Chemical & Engineering News (C&EN), ...
Facebook needs regulation – here's why it should be done by algorithms
Facebook has been likened to a "digital gangster" by a critical parliamentary report into disinformation and fake news. One witness in the 18-month inquiry into the way digital platforms have transformed the flow of information ...
The global impact of coal power
Coal-fired power plants produce more than just carbon dioxide, which contributes to global warming. Coal burning also releases particulate matter, sulphur dioxide, nitrogen oxide and mercury—thus damaging the health of ...
Carbon taxes could create new winners and losers among countries
Although conventional wisdom suggests that poor countries are more likely to bear a disproportionate burden of a worldwide carbon tax on fossil fuels used for electricity and transportation, the potential consequences of ...
How to fight climate change in agriculture while protecting jobs
Agriculture has become a carbon-intensive endeavour. Crop, livestock and fossil fuel use in agriculture account for about 25 per cent of global greenhouse gas (GHG) emissions.
Carbon capture on power stations burning woodchips is not the green gamechanger many think it is
The UK's efforts to develop facilities to remove carbon emissions from power stations took a step forward with news of a demonstrator project getting underway at the Drax plant in north Yorkshire. Where most electricity carbon ...
Massive Bolivian earthquake reveals mountains 660 kilometers below our feet
Most schoolchildren learn that the Earth has three (or four) layers: a crust, mantle and core, which is sometimes subdivided into an inner and outer core. That's not wrong, but it does leave out several other layers that ...
