The world is in a tizzy over the prospects of climate change caused by the increasing concentration of green house gases in our atmosphere. Carbon dioxide emissions from burning fossil fuels are the main culprit. Back in the 1970's I had to learn the concentration of various gases in our atmosphere for junior chemistry and I still remember that CO2 was 0.03%. Today that figure is closer to 0.04%. That's a pretty big increase in 30 years so you might imagine that a new invention aimed at capturing dioxide from the air would be a good thing. Global Resarch Technologies claim to have invented just such a device . Yet I am not convinced. For one thing where is the energy to manufacture and power these things going to come from - and will generating that energy not entail even further emissions of CO2? For another thing the device claims to produce a pure stream of Carbon Dioxide from the air. What exactly will be done with this CO2? My real objection though comes from a nagging feeling that I am sure I have already heard about a device that does this. Something that extracts CO2 from the atmosphere, that runs on solar power with no harmful emissions and stores the carbon in a compact environmentally friendly way. Oh yes, I remember now - here is a picture of one of these remarkable carbon sequestering devices.
I bought a gaming mouse yesterday a Logitech G300, here my initial thoughts. What is a gaming mouse? There are a wide variety of devices available classified as gaming mice but a few features seem common: 1. Wired rather than wireless: Although some high end models are wireless wired connections are just better and faster than wireless so most gaming mice stick with wired. As a bonus wired mice don't need batteries so the mouse is lighter. 2. High response rate: 1 to 2ms response rate so the mouse immediately responds to input. 2. High DPI. Gaming mice invariable boast high DPI numbers from 2,000 DPI upwards. This makes the device very responsive to the smallest movements. 3. Adjustable DPI . High DPI improves responsiveness but reduces precision so gaming mice generally allow you to adjust the DPI down for precise work such as pulling off headshots in sniper mode. Generally the mouse allows dpi to be changed on the fly by pressing a button. 4. Extr
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