Surfactant prevents this collapse by reducing the surface tension of the fluids that line the lungs and helping to equalize the pressures between large and small air spaces. Surface tension is a measure of the attraction molecules of a fluid have for each other.
Buffalo Bill Cody, who later became famous for his Wild West Show, was a rider for the Pony Express and wrote of his experiences. We join Bill's story as he is hired - at the age of 15 - to ride a section of the trail that lies in modern-day Wyoming:
Luke Allen, one of a growing number My Little Pony fanboys known as âbronies,â poses with two action figures from McDonald's Happy Meals. Each day, out-of-work computer programmer Luke Allen self-medicates by watching animated ponies have magical adventures. The 32-year-old, who lives in Albuquerque, New Mexico, loves his daily fix of My Little Pony Friendship Is Magic, and heâs not alone. Heâs part of a growing group of âbroniesâ (âbro poniesâ) â men who are fans of aâ¦