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±«Óãtv Two
Horizon
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Sleep Census
Information and Support
Main content
2007-2008
Horizon
Series exploring topical scientific issues
On iPlayer
Not available
Supporting Content
The Big Bang machine
—
The Six Billion Dollar Experiment
Duration:
3:43
The distant Universe
—
The Six Billion Dollar Experiment
Duration:
5:12
Cosmic microwave background radiation discovered
—
The Six Billion Dollar Experiment
Duration:
5:41
Isaac Newton and gravity
—
What on Earth is Wrong With Gravity?
Duration:
2:58