Horizon
Season 41 Episode 9 - Project Poltergeist
This is the story of two genuine scientific heroes. For forty years, John Bahcall and Ray Davis were engaged in a single extraordinary experiment - to find out why the Sun shines. In the end they would triumph. Davis would win the Nobel Prize and, thanks to their work, a whole new theory about how the universe is put together may have to be created. At the heart of this story is a tiny, utterly mysterious thing called a neutrino. Trillions of them pass through your body every second, touching nothing, leaving no trace. Yet neutrinos are one of a handful of fundamental particles in the universe, essential to every atom in existence and clues to what makes the Sun work. But their ghost-like quality made trapping and understanding them immensely difficult. What then followed was a bizarre series of experiments. They led from a vat containing 600 tons of cleaning fluid, to a vast cavern in a Japanese mountain, to a hole in the ground in Canada two kilometres deep. What they would reveal would stun the world of science. It seems that neutrinos may be our parents. They may be the reason why everything, including us, exists.
Episodes in Season 41
The Demonic Ape
60 min
The Moscow Theatre Siege
60 min
The Atkins Diet
60 min
Secrets of the Star Disc
60 min
The Dark Secret of Hendrik Schön
60 min
Thalidomide - A Second Chance?
60 min
Diamond Labs
60 min
T-Rex - Warrior or Wimp?
60 min
Project Poltergeist
60 min
The Truth of Troy
60 min
The Truth About Vitamins
60 min
King Solomon's Tablet of Stone
60 min
Derek Tastes of Earwax
60 min
What Really Killed the Dinosaurs?
60 min
Making Millions the Easy Way
60 min
Saturn - Lord of the Rings
60 min
The Hunt for the Supertwister
60 min
Dr Money and the Boy with No Penis
60 min
