Straight lines don't exist. They are, in fact, theoretical.
Now you may encounter lines from time to time that seem straight, but if you continue them long enough, they will veer. The Earth, being round and all, pretty much sees to it that nothing will travel in a straight line, that's of course if gravity can be overcome. Consider this, a machine would be considered to be more reliable that humans to produce these straight lines, but even the most precise machinery in the world, namely the space shuttle, spends an estimated 97% of its time correcting it's course ... achieving more of a zig-zag pattern, rather than a straight line.
So what about maintaining your fitness level? Click to read more...
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