Engineer Jem Stansfield looks back through the Horizon archives to find out how scientists have come to understand and manipulate the materials that built the modern world. Whether it's uncovering new materials or finding fresh uses for those we've known about for centuries, each breakthrough offers a tantalising glimpse of the holy grail of materials science - a substance that's cheap to produce and has the potential to change our world. Jem explores how a series of extraordinary advances have done just that - from superconductors to the silicon revolution.
Brianna Barnes and Jonathan Atherton travel to Amsterdam, the capital of the Netherlands. They start by exploring the compact city centre, built around a network of beautiful canals overlooked by the gabled mansions of 17th century merchants. Whilst Jonathan looks around using the locals' favourite means of transport, the bicycle, Brianna takes a tour of the waterways with the free-spirited Saint Nicolaas Boat Club. Amsterdam is renowned as one of the world's most liberal cities, and en route they check out the city's famously tolerant attitude to soft drugs like marijuana, and the nefarious goings-on in the city's infamous Red Light District.
Nearly 6 million Americans have been diagnosed with bipolar disorder and yet little is known about how the illness manifests itself in our brains. Ride the Tiger tells the stories of accomplished individuals who have been diagnosed with bipolar, and explores treatment options.
Are sea monsters real, or do they only exist in our imagination? Scientists examine the limits of whale sharks to see how big they can really grow.
"In a world that seems to be cracking at the edges, how do we ensure our survival? How do we ensure we can provide for our children and how do we face the possibility of a global economic meltdown, a world where all the conveniences of modern day are gone including the necessities of survival? Dowsing is an ancient practice whose origins are lost in long-forgotten history thought to date back more than 8,000 years. Reliefs from China and Egypt illustrate ancient people engaging in dowsing by using forked tools, rods and instruments. Dowsing was mentioned in the Bible when Moses and Aaron used a ""rod"" to locate water.