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All it takes is that there is a current transverse to a magnetic field. Lab experiments have generated fields in a similar way, and in the 26 January Physical Review Letters, researchers report that they can create the self-sustaining magnetic field even when the flow is highly turbulent.The new experiment is a more realistic simulation of Earth’s dynamo than previous …

(Image: © NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington).

"Chuanfei's work is a valuable milestone in validating our effort to model space weather in planets, and sets up for making predictions on both low-intensity and extreme space weather events on Earth," said Amitava Bhattacharjee, director of the Princeton Center for Heliophysics and a coauthor of the paper.

The information you enter will appear in your e-mail message and is not retained by Phys.org in any form. "The perfect fidget spinner for any physicists!".

The magnetic field creates a magnetosphere that surrounds the planet.

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Oliveira hopes the new Mercury mission, BepiColombo, will gather more magnetic field data and potentially narrow the study's conclusions.

The closest planet to the center of the solar system, Mercury is about one third as far from the sun as Earth is.

Earth and the Moon are the only case studies scientists have for changes in planetary bodies' magnetic poles, because there are no rock samples from other planets. No one expected it to go for four," Johnson said in a statement. “It is clear that Mercury is not solid throughout,” says planetary scientist David Stevenson of the California Institute of Technology in Pasadena. Post was not sent - check your e-mail addresses!

Mercury's magnetic field is approximately a magnetic dipole (meaning the field has only two magnetic poles) apparently global, on planet Mercury.

I encountered information describing two hemispherical containers of frozen mercury that were electrically charged on a massive scale and couter-rotated at an unknown rpm. These two fields produce a propulsion thrust “F” shown in red in the diagram.

The plasma, mercury based, is pressurized at 250,000 atmospheres at a temperature of 150 degrees Kelvin, and accelerated to 50,000 rpm to create a super-conductive plasma with the resulting gravity disruption. Does it depend on the strength of the magnetic field? Cowen, Ron. I think the idea is like a electro magnet. If this theory is correct, other planets might also have incorporated sulfur and other materials that formed far from the planets’ orbits.

The researchers found Mercury's ancient magnetic poles were far from the planet's current geographic South Pole and could have changed throughout time, which was unexpected.

Scientists use rocks to study how planets' magnetic fields evolve. You can be assured our editors closely monitor every feedback sent and will take appropriate actions. part may be reproduced without the written permission. I'd think the cost savings on maintenance alone (for an engine with no moving parts) would be a huge advantage. Post was not sent - check your e-mail addresses!

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If the mercury was replaced with a single ball bearing just wide enough to contact both edges, would it rotate around the system? The simulation will deliver a basic tool to the twin-satellite BepiColombo mission en route to Mercury, for which Dong is a co-investigator of a suite of four instruments on board the spacecraft. 2006. Mercury is the least studied planet in our solar system, and scientists continue to debate some basic facts about the small body. © Magnetic reconnection, the merging and violent separation of the magnetic field lines in plasma, regulates the Mercury magnetosphere, which is much smaller but far more dynamic than Earth's. Mercury, the planet nearest the sun, shares with Earth the distinction of being one of the two mountainous planets in the solar system with a global magnetic field that shields it … Get weekly and/or daily updates delivered to your inbox. Oliveira and her colleagues used spacecraft observations from five craters with magnetic irregularities.

NASA’s MESSENGER spacecraft has detected magnetic signals in Mercury’s surface rocks, and even stronger ones in lower orbit.

If the mercury was placed into a torque converter assembly, could it effectively generate mechanical power with a high enough voltage applied to it? Rocky planets such as Earth can have magnetic fields when charged materials inside their liquid cores slosh around.

Studying other planets' magnetic fields helps scientists understand how magnetic fields evolve, including on Earth. Rocky planets such as Earth can have magnetic fields when charged materials inside their liquid cores slosh around.

Receive mail from us on behalf of our trusted partners or sponsors? **The system doesn't work in alternating current!

Read the original story here.

This is awesome! When the current flows through the aluminum conductor it generates a magnetic field.

*The talc powder makes visible the movement of the mercury.

However, the poles were randomly distributed and were all found in the Southern Hemisphere. The fact that Mercury has a magnetic field, therefore, suggests that there is liquid inside.

It’s possible, they reasoned, that when Mercury’s core became solid, the magnetic field was frozen in place. It turns out, however, that the consistency of a planet’s core doesn’t depend primarily on heat from an outside source.

The debate about Mercury’s core began in 1974, when the Mariner 10 spacecraft detected a magnetic field around Mercury.

The planet orbits the sun once every 88 days. The scientists detected magnetized rocks in a part of Mercury's crust that, due to the presence of many craters from cosmic impacts, appears to be quite ancient.
During their formation, the energy from an impact causes the ground to become molten, giving magnetic material a chance to realign with the planet's current magnetic field. They suspected those craters were formed during a time with a different magnetic field orientation than that of today.

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Mercury is the only rocky planet besides Earth in the solar system with such a magnetic field. Subscribers, enter your e-mail address to access our archives. The working voltage is DC 2V, 27-28A controlled by inverter. Its magnetic field orientation has flipped more than 100 times in the course of its 4.5 billion years. This case is a little different, because the magnetic field is being generated by running a current through the mercury instead of by the Mercury itself.

Until MESSENGER became the first probe to orbit the planet, in 2011, the only other visits Mercury received were the flybys made by NASA's Mariner 10 probe four decades ago. Some planets have metallic liquid …

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You can be assured our editors closely monitor every feedback sent and will take appropriate actions. Available at http://www.sciencenewsforkids.org/articles/20060419/Feature1.asp . They modeled Mercury's ancient magnetic field based on the crater data to estimate the potential locations for Mercury's paleopoles. Rocky planets such as Earth can have magnetic fields when charged materials inside their liquid cores slosh around.

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Scientists know Mercury evolved over time but cannot definitively say how it did, said Joana S. Oliveira, an astrophysicist at the European Space Agency's European Space Research and Technology Centre in Noordwijk, the Netherlands, and lead author of the study.

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You will receive a verification email shortly. © Society for Science & the Public 2000–2020. "The mission was originally planned to last one year.

Saturn’s moon Titan may host lots of dried lakes, Developing planet emerges in a swirl of gas, Wiggly wheels might help rovers plow through loose lunar soils, Planets with hydrogen skies could harbor life, Weight lifting is this planetary scientist’s pastime. Science News was founded in 1921 as an independent, nonprofit source of accurate information on the latest news of science, medicine and technology.

New research published in the AGU's Journal of Geophysical Research: Planets finds Mercury's ancient magnetic poles, called paleopoles, have shifted throughout its past. This process is called thermoremanent magnetization.

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This MESSENGER image shows a view of Mercury's Suisei Planitia region (the blue colors), where MESSENGER detected crustal magnetic signals.


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