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15th Jun 2008

Fire and Mud - The Science of Volcanoes


Chris Smith

Get Red Hot and Dirty with the Naked Scientists as we explore the science of volcanoes. We discover how the heat from hot rocks can be used to work out what gases are emerging, how likely a volcano is to erupt and whether it will go with a bang or a whimper. We also hear how hot runny rock can shatter under pressure to trigger an earthquake, and dip into the cooler, dirtier world of mud Volcanoes, like Lusi, which is currently pouring millions of gallons of mud onto the island of Java. Plus, we find out how a small date plant made history by being the oldest seed ever to germinate, why the paper of the future could be as tough as iron, and, in Kitchen Science, Ben and Dave provoke an eruption of their own!

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Interviews

2000 year old seedling

The Methuselah tree is a record breaker - it grew from the oldest seed ever to be germinated. Sarah Sallon explains how, and why, to grow 2000 year old seeds...

Looking into a volcano

Marie Edmonds studies the gasses being released from volcanoes without having to do the dangerous bit of actually climbing into them.

Quakes from within the magma

Normally you think of magma as being a runny liquid, but it seems to fracture like a solid, Meera finds out more.

Mud volcanoes

Although you think of most eruptions being hot and fiery, but a mud volcano is entirely different. It is cold but it can still be extremely destructive.


Kitchen Science

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...or download as MP3 [1] [2]

Flour Volcano

Build a model of some of the largest volcanoes on the planet, using some flour and a balloon.


QotW

Can Cooking Cut Calories?

Recently a friend of mine was telling me about a pizza that he burned to the point of becoming a charred husk ten times smaller than the original. At that point I realised that this pizza had now become a very low-calorie alternative to its former self. My question is whether all types of cooking re...


News

Nano-paper stronger than cast iron

Researchers based in Sweden have created paper that can withstand more force before breaking than cast iron. The paper isn't made from anything unusual; like all paper, it consists mostly of cellulose: the common sugar polymer found in wood which gives plant cell walls their strength. The key to th...

Cancers control cells elsewhere in the body

Scientists have found that tumours can produce factors that encourage the growth of stray cancer cells lurking elsewhere around the body. Writing in this month's edition of the journal Cell, MIT researcher Robert Weinberg and his colleagues injected mice with cells derived from human breast cancers....

Tree leaves keep it cool

When they're at work photosynthesising, tree leaves stay at the same temperature whether the air outside is freezing cold or boiling hot, according to researchers at the University of Pennsylvania publishing in Nature. Suzanna Richter and Brent Helliker analysed 39 tree species from icy northern Ca...

 

Dated horticulture - scientists grow 2000 year old seed

Carbon dating has confirmed that scientists have broken the record for growing the world's oldest seed - a date dating from 2000 years ago. In the 1960s archaeologists excavated the fortress of Masada, which overlooks the Dead Sea, and uncovered a clutch of seeds in one part of their dig. The seeds...


Questions

What happens when acid reacts with limestone?


Why do glasses, cups and plates have a ridge around the base?


How much pollution does a volcano produce?


Is there any way to stop a volcanic eruption?


Can we harness volcanoes to modify the environment?


Why don’t you stick a cork in a volcano?


What rock looks like glass inside and mineral outside?


Are there more dense materials in the earth's core?


Will melting ice change the shape of the earth?


What is happening with the Yellowstone supervolcano?


How do you find water underground?


Do Underground Bombs Set off Volcanoes?


 

Will removing oil destabilise the Earth?



What is the warmest it has ever gotten on earth ?...
- Matthew - 15th Jun 08

Is the worst snake's venom more poisonous than the worst spider's venom ???...
- Matthew - 15th Jun 08
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