A cat has 32 muscles in each ear. Useless fact. The conveyor belt maximum angle of loose cement is 22 degrees. Useful fact! John Lennon’s first girlfriend was named Thelma Pickles. Useless fact. The normal human hearing range is between 30 and 15,000 Hertz. Useful fact! Cephalacaudal recapitulation is the reason our extremities develop faster than the rest of us. Useless fact. The safe load for clear solid ice if you’re cross country skiing is 3 inches. Useful fact!
What’s the difference between useless facts and useful facts? Well, useless facts are useless, just like this sentence. Useful facts are useful (warning: this sentence is also useless)! Useless facts can be found all over the Internet. But a whole heapful of useful facts can be found in one place, the Pocket Ref 3rd Edition at Harbor Freight Tools (Ref stands for “reference”—another useful fact).
This book has it all—periodic tables, pipe specs, material weights and other properties, conversion tables, general science, 14-year perpetual calendar and my personal favorite, radioisotope half lives! Get one for the home, one for the toolbox, one for the glove box and one for your pocket, just make sure it’s a big pocket—the book contains over 800 pages of steaming hot reference information!
But who wants to put steaming hot anything in their pocket? Let’s try that again—the book has over 800 pages of stuff! Much better… If you’re a contractor, DIYer, mom, dad, uncle, carpenter, metallurgist, ornamental horticulturalist, mad scientist, hydraulic pressure historian or none of the above, this handy reference book is sure to become a favorite—and that’s a useful fact!
Pocket Ref Third Edition
Sku #: 35569