Board a submarine with Steven Johnson to discover what a lack of natural light means for a sailor’s working day and visit Heathrow, the world’s busiest airport, to try to get timings right at air traffic control. The story of getting a grip on time is full of curious garage tinkerers. One of them, railway clerk William F. Allen, was so exasperated by the chaos caused by the hundreds of local times zones in the U.S. that he fought tirelessly to standardize time into four zones. Learn how advancements in navigation, the way we work, technology and travel would have been impossible without the unsung heroes of time.
Dallas Campbell and Dr Hannah Fry present a documentary exploring aviation, beginning with a look at the challenges of getting aircraft into the air. The programme features a visit to the world's busiest airport to discover the work that goes into getting its millions of visitors off the ground. Plus, the construction of the world's largest passenger plane and the dangers of taking off from the coldest city on Earth.