Do penguins have knees? [antikvár]

PrefaceYou may think you've lived a happy life without knowing the answer to why you don't feel a mosquito while it's biting you. Or why the address labels on subscription magazines are usually placed upside-down. Or why the bags on oxygen masks in airplanes don't inflate.But you're not really happy. Face it. In our everyday life, we're confronted with thousands of mysteries that we cannot solve. So we repress our anxiety (could you imagine a life haunted by the recurring dread of not knowing what function our earlobes serve?). And as those of us who've seen Dr. Joyce Brothers on television know, repression isn't good for you.So our quest is to eradicate all of these nagging Imponderables. Luckily, we have the best possible collaboratorsour readers.Most of the Imponderables posed in this book were submitted by readers of our first four volumes. In our Frustables section, readers wrestle with the ten most frustrating Imponderables that we weren't able to solve. And in the letters section, readers suggest how our previous efforts may have been ever so slightly less than perfect.As a token of our appreciation for your help, we offer a free copy of our next book to the first person who sends in an Imponderable or the best solution to a Frustable we use, along with an acknowledgment.The last page of the book tells you how you can join in our campaign to stamp out Imponderability. We can't guarantee you lifelong happiness if you read Do Penguins Have Knees?, but we can assure you you'll know why there are peanuts in plain M&Ms.