GPS - Where in the World Are We?
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Where in the world am I? We're looking at the science of the Global Positioning System, or GPS, this week. We find out how satellites can tell you your location, as well as communicate with the bossy little box that tells you which way to drive. We discover the potential for "spoofing" GPS with a false location, and how this might be the future of cyber-terrorism as well as explore the cosmic reference frame that the satellites themselves rely on. In Kitchen Science, we get back to basics and locate ourselves using a map and compass! Plus, the first amphibian genome helps to fill the vertebrate family tree, we meet the colourful fish that shine a light on evolution and find out how a technique developed to study eye disease can help find art forgeries.
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An analysis of the genome of the Western Clawed Frog, Xenopus tropicalis. was published in the journal Science this week, marking the very first amphibian genome sequenced...
A group of colourful fish living on Caribbean coral reefs have shed light on how species evolve in the oceans.
A technique developed to take three dimensional, real time images of the retina is also useful for detecting evidence of fraud in paintings, according to research published in the journal Accounts of Chemical Research this month...
The world is still losing biodiversity at an alarming rate despite world leaders promising in 2002 to cut the rate of loss by 2010. That’s the stark warning from a paper published in the journal Science this week by a large team of international researchers.
The Lancet has published a study into the benefits of looking at your genome to help personalise your medicine. Dr. Euan Ashley from Stanford University School of Medicine joined us to explain more...
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How does the GPS in your car actually work? And what does the future hold for GPS? Meera went to meet Dr Chaz Dixon and Colin Lee to find out more.
Professor Todd Humphreys explains how it may be possible to intentionally fool your GPS into thinking you're somewhere else...
Will the increase in GPS technology mean more satellites in the sky in the coming few years or the existing setup enough?
Chopo Ma explains the Cosmic Positioning System used to locate our satellites...
How popular is GPS for at-home devices like finding your car keys or finding the remote control?
Can divers use GPS whilst underwater to navigate through the water?
Why do we use satellites for positioning instead of ground based methods?
Could the Americans just turn GPS off anytime they like? Can the US military restrict access to certain groups or individuals?
I thought of this while listening to Naked Scientists in my car. We’ve all heard the way in which sounds change frequency as an ambulance passes us with its siren going. What I wonder is whether a conventional radio broadcast experiences Doppler shift when we’re driving toward ...
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