Why does a knuckleball flutter? Why do belly flops hurt so much? Why would a quarterback prefer a deflated football?

Here are 54 all-star experiments that demonstrate the scientific principles powering a wide variety of sports and activities--and offer insights that can help you improve your own athletic skills. How does a black belt karate chop her way through a stack of bricks? Use Popsicle sticks to understand why it's possible and learn the role played by Newton's second law of motion. Does LeBron James really float through the air on the way to a dunk? Use a tennis ball, a...

Senegal Travel Guide - Expert holiday tips and travel advice including Dakar hotels, restaurants, cuisine, colonial and religious architecture, museums and culture. This guide also covers suggested itineraries and tour operators, music, storytelling, wildlife and natural history, indigenous people, Sufism, Touba, Cap-Vert, Nepen Diakha and Ouakam.

Gabon Travel Guide - Expert information and travel advice including Libreville, national parks, wildlife, gorilla tracking in Loango National Park and mandrill tracking in Lope National Park. Also covers traditional culture, Bwiti ceremonies, Lake Oguemoue, Abanda Caves and crocodiles, rainforest pirogue trips, birdwatching and Koungou Falls.

This new, thoroughly updated third edition of Bradt's Senegal continues to offer by far the deepest coverage of any guidebook to this increasingly popular part of West Africa - and is the only one to focus exclusively on the country. With nearly 400 pages of detailed description, it remains the definitive source of tourist information about the region's most accessible Francophone nation. Senegal's smorgasbord of landscapes belies its compact size; pleasingly, all can be reached within a day's travel, making the country perfect for anyone looking to sink their teeth into West Africa for the...