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Theory of evolution: 150 years old
Exactly 150 years ago today, Charles Darwin read his theory of evolution before The Linnaean Society of London.
The theory provides an account of how natural selection accounts for the evolution and the wide variety of species. Darwin‘s co-author was Alfred Russel Wallace, and it is their paper that is the basis for modern biology. Though scientists of the time knew that evolution occurred they couldn’t entirely explain why, even though fossil records showed evidence of life forms that no longer existed.
256GB SSD
The mechanical hard drive is just about extinct. With prices of flash memory falling and capacities increasing, notebooks will soon be a lot lighter and thinner, a la Apple. They’ll consume less power too and be far less prone to damage from accidental bumps and drops. Samsung has just taken the capacity of the humble solid state drive (SSD) to new heights. 256GB fit onto the shiny rectangle, measuring 10cm by 7cm and less than 1cm thick.
Of course, low power consumption and crash-resistance are just part of the deal. It’s in the performance department that this SSD really shines: it has a sequential read speed of 200MB per second and sequential write speed of 160MB per second. That makes the solid state device more than twice as fast as a conventional hard drive. Current prices make this technology prohibitive for mass consumption at present. Give it a year or even less and it is likely that SSD‘s with even greater capacity will find their way into most new computers.
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