Mark Frary

An awe-inspiring deep-dive into the treasures found on the sea floor and what they reveal about our past. A shipwreck is a time capsule. When a maritime archaeologist picks up an item from the seabed, there is a direct connection with history. The last time the object was touched could have been centuries before; now, it’s starting a new life....

Where do numbers come from? Can speed affect the passage of time? What is dark matter? Find out the answers to all these questions and many more. The Pocket Knowledge Guide: Science and Math contains fascinating facts and helpful explanations of all things math and science, from the early history of numbers right up to the most recent discoveries in...

Do you want to learn about the physical origin of the Universe, but don’t have the rest of eternity to read up on it? Do you want to know what scientists know about where you and your planet came from, but without the science blinding you? Of course you do – and who better than For Dummies to tackle the...