I just saw old fluorescent light replaced with new one. This was the old one: This is the new one: In new one there is electronic ballast. What are the problem with old ones? Fire danger caused by failing capacitors and by heating of different parts of lamp (tube ends and ballast) when old tube →
I bought this is universal travel adapter from Biltema to be able to connect my laptop power supply with grounded schuko plug hopefully safely to UK power outlets. Many other travel adapters only work well with ungrounded loads (typically either accept only ungrounded plug or leave ground not connected). This is one rare product that →
I wrote earlier about bad UK power socket adapter. Here is another one – better but not ideal. I used this to connect smart phone charger. The basic construction looks good. You can’t touch the live parts with finger. The UK pins are all metal and not insulated on the upper side like in newer →
http://gizmodo.com/5391271/giz-explains-why-every-country-has-a-different-fing-plug Posted from WordPress for Android →
http://www.forbes.com/sites/timworstall/2015/08/04/the-imfs-absurd-calculations-of-fossil-fuel-subsidies-its-really-not-2200-for-every-american/ Posted from WordPress for Android →
http://www.theguardian.com/environment/2015/aug/04/g20-countries-pay-over-1000-per-citizen-in-fossil-fuel-subsidies-say-imf?CMP=share_btn_tw Posted from WordPress for Android →
http://spectrum.ieee.org/energy/the-smarter-grid/lets-build-a-global-power-grid?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+IeeeSpectrum+%28IEEE+Spectrum%29 Posted from WordPress for Android →
http://spectrum.ieee.org/cars-that-think/transportation/efficiency/solar-powered-family-car-generates-more-energy-than-it-uses Posted from WordPress for Android →
Or lack of safety? This example is one cheap UK-schuco adapter. First look reveals that there is no fuse in UK plug (there should be max 13A fuse). There is no grounding on adapter (just plastic pin in place of ground pin), but accepts grouded equipment plug. But there is worse problem: when plug is →
http://spectrum.ieee.org/energy/the-smarter-grid/zombie-coal-plants-reanimated-to-stabilize-the-grid Posted from WordPress for Android →