Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

When seen through the lens of technology, few resources are truly scarce; they’re mainly inaccessible. 

 

Peter Diamandis

The Centre of the Earth Is 1,000C Hotter Than We Thought

RATE THIS! +0
Posted in Science on 28th Apr, 2013 12:54 AM by AlexMuller

We’ve long known that the very core of the planet — despite being exceedingly hot — is made of solid, crystalline iron because of the immense pressures it experiences. But a new series of experiments suggests that the crystal structure actually forms at far higher temperatures than previously predicted.


Tests in the early 90s suggested that the core’s temperature should be approximately 5,000°C. But now, a team of scientists have used X-rays to probe samples of iron, held at extremely high temperatures, to better understand how the unique crystal structure of the core forms.


The pressures were created using something called a diamond anvil cell, which holds a sample between two machined synthetic diamonds. By applying immense pressure and heating the sample with lasers, the team were able to bombard the iron with X-rays to see how its crystal structure changes as it transitions from liquid to solid.


Their results, published in Science, suggest that the core temperature of the Earth is likely 6,000°C. Fortunately, that result also agrees with computational simulations of what should happen at the core. It’s not just an academic success, either — while the core temperature can’t be measured directly, knowing its value is important for geophysicists who attempt to understand and predict changes in earthquakes and the planet’s magnetic field.



Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Hardware on 2017-11-17 18:02:34
    Tesla unveils a truck and a roadster..read more
    Posted in Hardware on 2017-11-17 17:47:38
    SpaceX expects government support for development of BFR.....read more
    Posted in Science on 2017-11-17 13:59:11
    Gene therapy infused into persons blood to correct liver.....read more
    Posted in Online on 2017-11-16 23:32:28
    Google’s Chatbase bot analytics platform opens to all..read more
    Posted in Software on 2017-11-16 23:25:41
    Google to build Artificial Intelligence that will build.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Martian landscapes formed from sand 'levitating' on a little.....read more
    Posted by AlexMuller
    Scientists detect comets outside our solar system..read more
    Posted by AlexMuller
    Advanced artificial limbs mapped in the brain..read more
    Posted by AlexMuller
    Bacteria have a sense of touch..read more
    Posted by AlexMuller
    Recurrent brain cancer: New hope with phase 1 clinical trial.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me