The Science of Sustainable Shipping
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We set sail to discover the science of sustainable shipping in this week's Naked Scientists. We visit an enormous wave tank to find out how the sea swell can impact on damaged ships, and look at the problems caused by sulphur-rich shipping fuel. Plus, we hoist the SkySail, an enormous parafoil kite that can be deployed from the deck of a ship to cut fuel consumption by up to 60%. In the news we hear how happiness can be found here and now, why children tire so quickly when walking and how Earth became oxygenated 400,000 years earlier than we thought. Also, we investigate the elegant physics of a lapping cat!
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When are you at your happiest? Research published this week shows that we are most happy when we’re concentrating on the job at hand, rather than allowing our minds to wander. But, oddly, people seem to spend almost half of their waking hours thinking about something other tha...
As any parents, aunties or uncles know full well, kids get much more tired out simply walking around than adults do, and now scientists have taken a step closer to understanding why this is. It’s not just that they run up and down more, or that we get more efficient at walking a...
Previously, we have believed that the Earth’s atmosphere turned oxygen-rich about 800 million years ago and this ushered then the era that made complex life like us possible. But now, new research from Scotland shows that we might have got it wrong. And in fact, oxygen levels ...
We’ve been living alongside cats for thousands of years but it’s taken until now to fully understand how they perform one of the most basic of tasks – drinking...
Is the Cambrian period named after Cambridge?
When American scientists discovered some tree fossils in 2007, they turned out to be 385 million years old. That makes them among the world’s oldest trees. But in order to identify these trees, they needed the help of fossil tree expert, Dr. Christopher Berry from Cardiff Univ...
Dave and Meera make some waves to find out how damaged ships interact with the movement of the sea...
How can we make shipping more sustainable? Tristan Smith from University College London is here to shed some light on how...
One idea put forward for sustainable shipping in the future has been to find ways to harness the power of the wind in its rather traditional role of filling some sails, but this time using skysails...
Dear Chris and the gang
Can you help me? I am VERY concerned about this Salmon/Tuna issue. As I virtually live off Salmon and Tuna, eating Salmon 1-2 times a week and Tuna 4-5 times!!
I don't eat red meat but do like chicken, but I thought I was eating healthily? I have ...
Are there any other means of propulsion other than a propeller? From @Skyychild
I believe that impellers (propellers in a duct) are much more efficient that propellers (no duct). So why aren't boats routinely fitted with impellers? From Simon McCarthy.
When will we get robotic cargo ships with no crew on them? Cheers
If we didn’t burn this thick sulphurous diesel in the marine engines that we’ve got, what could we actually do with it?
Having just discovered that when bees are attacked by something like a hornet they can form a 'bee ball' around it and boil it to death with all the heat generated in this ball, I was wondering whether it is theoretically possible that they could do the same to a human? Given unl...
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