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Tennibot is a really cool Ubuntu Linux-powered tennis ball collecting robot

Linux isn’t just a hobby —  the kernel largely powers the web, for instance. Not only is Linux on many web servers, but it is also found on the most popular consumer operating system in the world — Android. Why is this? Well, the open source kernel scales very well, making it ideal for many projects. True, Linux’s share of the desktop is still minuscule, but sometimes slow and steady wins the race — watch out, Windows!

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