In the third episode of the series that puts science and technology to the test, the team face more fun experiments and challenges. And why not join in with our debate on the size of the universe: read Dr Andrew Norton's article below, which may help you get your head round just how big, big can be!
Tonight Liz conducts an experiment into jet lag and how to avoid it.
Dallas demonstrates the size of the solar system with the help of a bicycle and a fruit bowl.
And Jem upgrades his square-wheeled skateboard.
First broadcast on 22 September 2010
Explore the world of Bang
The Bang Goes The Theory screensaver is no longer available. Launch now: The Bang screensaver has retired
Can you use your scientific knowledge and know-how to get the Bang! team out a series of sticky situations? Read more: Take the Bang challenges
The scratch and sniff test ran in conjunction with Bang Goes The Theory in 2010. Read more: Scratch and smell: Take the test
Find out more about the team and the challenges they face - and watch online. Read more: More Bang on bbc.co.uk
Bang Goes The Theory 2 - Stay in touch Creative commons image Credit: cerfman17 under CC-BY-NC-SA licence
Keep in touch with The Open University, and find out about our courses and programmes. Read more: Bang Goes The Theory 2 - Stay in touch
Inside the science
Galaxies apart: Join the debate Copyrighted image Credit: By Davidherraezcalzada via Dreamstime under subscription
The distances in space, even to one of our nearest galactic neighbours, are phenomenal. Dr Andrew Norton helps us... Read more: Galaxies apart: Join the debate
Professor Russell Stannard investigates what is beyond the observable universe and explores claims that the universe... Read more: The size of the universe
Dr Alan Cooper discusses the methods used to measure the solar system Read more: Measuring the Solar System
From the Big Bang to the possible end, explore the story of our universe Launch now: Universe timeline
Dr Robert Lambourne and Dr Stephen Serjeant of The Open University's Department of Physics and Astronomy introduce... Read more: From the OU on iTunesU - The relativistic universe
From Kepler to modern day scientists, follow the development of thought about the restless universe. Read more: The restless universe
Mike Leahy and Peter Naish discuss why we need sleep and what happens if we are deprived, as part of the BBC/OU... Read more: The science of sleep
Dr Natheera Indrasenan discusses the benefits of a good night's sleep and how to achieve them. Read more: Sleep: A doctor's advice
Can you capture scenes just by looking at them? Find out with our photographic memory test. Launch now: Take the photographic memory test
Using the Pulfrich Effect, it's possible to calculate the difference in speed in how quickly your eyes communicate... Read more: Measure the Pulfrich Effect
How can new technology help you to play a new musical instrument? The E-Sense research programme is experimenting... Read more: From the OU on iTunesU - Sensory augmentation devices
Hearing is a familiar and important human sense that is a topic naturally of interest to those who are curious about... Read more: Hearing
Reinventing the square wheel: Join the debate Copyrighted image Credit: By vrogy via flickr under a Creative Commons licence.
Square wheels - odd looking indeed - but what would be the practical application for everyday life? See what Dr Ian... Read more: Reinventing the square wheel: Join the debate
Would we make different decisions about energy use if it took an army of cyclists to power our house? Read more: Biker trove
Geometry is concerned with the various aspects of size, shape and space. In this LearningSpace unit, you will... Read more: Geometry
How do helicopters beat gravity to fly? Download videos explaining all - and more about The Physical World. Read more: From the OU on iTunesU - The physical world
Find out more
Study science with The Open University Copyrighted image Credit: Photo: Corbis / Ozone layer over earth / Science / Open University
Take your interest in science further - explore the current science courses and qualifications available from The... Read more: Study science with The Open University
Interested finding out more about which science course is right for you? The Science faculty offer a series of... Read more: Like science? See our short courses
Previously on Bang - explore series 2
With challenges galore, Bang Goes The Theory - the show that takes an unexpected look at science - returns for a... Read more: OU on the BBC: Bang Goes The Theory 2