There are so many things you can learn through practice alone, such as the exact angle of light that streams into your kitchen window at 3 p.m. in the middle of winter, or which dishtowel perfectly complements your earthy wooden background board. (lawsofbliss.com)
A note found in Stephen Paddock's Las Vegas hotel room contained handwritten calculations on the exact angle to fire to kill as many people as possible. (nystateofpolitics.com)
You can adjust to the exact angle you want and lock the table at that angle if you want to do exercises without wobbling. (geekwrapped.com)