Environment

The changing earth… Movement of Magnatic Poles

Volcanoes erupt, new land is being created and even our magnetic pole is always on the run changing.

Here is an example of how it affects our lives.

http://news.yahoo.com/s/yblog_thelookout/20110107/sc_yblog_thelookout/florida-temporarily-closes-runway-due-to-magnetic-pole-shifting

Incase that url stops running you can read the article below:

Earth’s magnetic pole shifts, screws up runway at Florida airport
By Liz Goodwin

EmailPrint..By Liz Goodwin liz Goodwin – Fri Jan 7, 4:45 pm ET
An airport in Tampa, Florida, has had to temporarily close its runways to keep up with Earth’s magnetic north pole, which is drifting toward Russia at a rate of 40 miles per year.

Fox News reports that the international airport was forced to adjust the signs on its busiest runway Thursday because pilots depend on the magnetic fields to navigate. The runway will be closed until Jan. 13, and will re-open with new taxiway signs that indicate its new location on aviation charts, the Tampa Bay Tribune reports.

Paul Takemoto, a spokesman for the FAA, says the Earth’s magnetic fields are constantly in flux — but rarely so much so that runway signage needs to be changed. “You want to be absolutely precise in your compass heading,” he told Fox. “To make sure the precision is there that we need, you have to make these changes.”

“The Earth’s poles are changing constantly, and when they change more than three degrees, that can affect runway numbering,” FAA spokesperson Kathleen Bergen told Fox News. It’s unclear whether any other airports will have to adjust their runways.

Earth’s magnetic field, which still flummoxes those who study it, “is thought to be generated deep inside the planet,” LiveScience writer Jeanna Bryner explains. “An inner core of solid iron is surrounded by an outer core of molten iron. They rotate at different rates, and the interaction between the regions creates what scientists call a ‘hydromagnetic dynamo.’ It’s something like an electric motor, and it generates a magnetic field akin to a giant bar magnet.”

Sometimes, the poles completely flip — and presumably when that happens, many bigger changes are afoot than modest tweaks to airport signs. The last time the planet experienced a polarity flip was 780,000 years ago.

(Flight takes off from Tampa International Airport: AP)

Comments

What you see on tv is not real…. I think most people knew that…

It is amazing what technology can do now a days. They can transport you from here to half way across with world with the stroke of the editor’s wand. I thought i share this bit of empirical truth about the virtual world we experience. The process is called green room or blue room special effect.

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Pollution and its effect on birds… let these pictures tell you the story

This will make us think twice about throwing our garbage into the sea, or anywhere else for that matter. This boils back to each of us and the choices we make every day. The empirical truth about our garbage disposal is that we are doing a horrible job of taking care of the problem.

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