H.264 (mp4/m4v) tips which reports several standard video sizes used eg in podcasting, from 640×480 "Standard Definition" 4×3 to and beyond 1280×720 "High Definition" 16×9 "Widescreen" (720p). It lists bandwidths of the above as 65MB/minute and 190MB/minute, for example. Sources/Links 2021-12-12: EnergyDashboard UK renewables map . 2019-11-05: 150 years of scientific illustration . 2018-03-27: ENTSO-E Transmission System Map : ... a comprehensive illustration of the transmission system network operated by members of the European Network of Transmission System Operators. In general the map shows all transmission lines designed for 220kV voltage and higher and generation stations with net generation capacity of more than 100MW. 2017-09-23: Data Viz Project : a website trying to present all relevant data visualizations, so you can find the right visualization and get inspiration on how to do it. 2017-07-13: UK drought portal . 2015-03-07: Which Nations Have Reduced Carbon Intensity the Fastest? (UK is about #3 amongst OECD, partly because of deindustrialisation and partly because improved electricity generation efficiency and the "dash for gas".) 2012-04-03: Data visualization: Science on the map and TileMill . 2012-11-28: Interactive: global energy sources : In 2011, the globe consumed the equivalent of 12,275 million tonnes of oil. Figures for the top 50 nations show how important fossil fuels remain; they supplied 87% of the world's energy. Arup Interactive solar mapping tool . 2012-04-03: Which Nations Have Reduced Carbon Intensity the Fastest? (UK is about #3 amongst OECD, partly because of deindustrialisation and partly because improved electricity generation efficiency and the "dash for gas".) 2012-04-02: Domestic energy use map of Britain down to very small areas giving consumption averages for ~6000 people. Area E02000602 in Kingston upon Thames: average consumption of gas, per meter, kilo-watt hours: 13,143kWh, average consumption of electricity, per meter, kWh: 4,106kWh (cf ~6,000 and ~1,000 respectively for us, 14,898kWh and 4,709kWh for Britain). See backing data . Urban Observatory . Open Source Tools for PV Modeling . Europe versus the US. Who gets the most sunshine? IRENA Global Atlas of renewable energy. The UK government (DECC) 2050 calculator tool : find the best route to meet the UK's 2050 greenhouse-gas targets from the comfort of your own home. No one ever need know that you have become part of the solution! Without The Hot Air (free) book by David MacKay; real crunchy numbers and good diagrams. Without The Hot Air: Chapter 18: Can we live on renewables? red and green stacks. Lou's Energy and Environment Clocks . The RealClimate Data Sources page. Information is Beautiful: Climate Change Deniers vs The Consensus . WorldOmeters : real-time world statistics. Global off-shore wind power maps. IEA Interactive Sankey Diagram . M3c: MIDI (as an 'audio' encoding format):