About the Book: Meet the Invisibles
From the tiny organisms thriving all around us to the invisible energy waves
sending signals to our gadgets, the world is brimming with activity that we cant
see. Some really small things can only be seen with the most powerful
microscopes, while other things are just plain invisible. Did you know that
hawks use ultraviolet light invisible to humans to see trails of wee left by
mice so that they can find their next meal? Or that invisible magnetic fields
are so strong they can suspend a frog in mid-air? Find out about the invisible
worlds all around us, from