Sentences with phrase «on magnetite»

Sometimes several metal atoms on magnetite form small clusters.

But on an atomic scale, it has remarkable properties: on magnetite, single metal atoms are held in place, or they can be made to move across the surface.

The two platinum atoms must once again find separate places on the magnetite surface.

The remarkable behaviour of platinum atoms on magnetite surfaces could lead to better catalysts.

Not exact matches

PERTH - based Mineralogy Pty Ltd has entered into an agreement with Austeel Pty Ltd to provide access to 740 million tonnes of magnetite ore on attractive commercial terms.

Bees home in on brilliant ultraviolet patterns that we see as plain white daisies; pigeons can literally align themselves to magnetic north because of magnetite in their brains.

Palabora also owns a magnetite stockpile and the future of value creation at Palabora is likely to involve beneficiation of the magnetite through on - site processing, an activity that is outside Rio Tinto's strategic focus.

Tarduno's new results are based on the record of magnetic field strength fixed within magnetite found within zircon crystals collected from the Jack Hills of Western Australia.

«We do not believe it is too incautious to restate our original hypothesis that such magnetites constitute strong evidence of early life on Mars,» said lead author Kathie Thomas - Keprta at the time.

On other surfaces, pair formation would be favoured, but magnetite does not allow that,» says Roland Bliem.

Tarduno and his team wanted hard data on both the intensity and direction of the magnetic field, which are recorded and stored in minerals, such as magnetite, at the time they were formed.

Debate on how birds sense geomagnetic fields has largely revolved around magnetite particles found in various parts of their heads.

They identified rings of magnetite (iron oxide) arranged around the sooty spheres in the same pattern as in frocks from a volcano on the island of Svalbard, Norway.

First, the surface charge on a particle of magnetite (a form of iron oxide) depends on the pH of the solution surrounding it: below pH 6 it is positive, and above it is negative.

These might be based on crystals of magnetite, which align with the Earth's magnetic field and could pull on some kind of stretch receptor or hair - like cell as it changes polarity.

An international research team has now studied this question for the first time at ultra-high resolution on samples of magnetite, the mineral dominating the magnetic properties in the earth's crust.

When the scientists examined the cells in the growing communities closely, they found nanoparticles of magnetite on the surface of cells and, in some cases, grains of the iron mineral connecting microbial pairs.

Another NASA research group, led by Kathie Thomas - Keprta of NASA's Johnson Space Center, report in the same issue of PNAS that the magnetite crystals inside the meteorite are similar to those formed by «modern» magnetotactic bacteria now living on Earth.

Magnetite (Fe3O4) is a common mineral found on black sandy beaches, in iron - rich sediments and even in interplanetary dust.

A form of magnetite (iron oxide) was detected in the meteorite that, on Earth, is produced only within the bodies of certain bacteria.

There are two main theoretical models, one based on small magnetite particles that may reorient in an external magnetic field and the other based on the idea that upon photo excitation a certain type of molecules in the eye of a bird support a radical pair formed by two electrons which evolve under the joint action of the Zeeman interaction with the external magnetic field and the hyperfine interaction with the supporting molecule.

A Martian meteorite discovered in Antarctica in 1984 called ALH84001 was found to have a mineral called magnetite that on Earth is associated with the presence of microorganisms.

This discovery not only shows the profound effects of pressure on magnetism, it also discloses, for the first time, that pressure induced a spin - pairing transition in magnetite that results in changes in the electron mobility and structure.

Caption — Magnetite is the most abundant magnetic mineral on Earth.

The magnetite - mediated mechanism seems to act as part of a magnetic map - or signpost sense, which could provide the animal with information about its geographic position, whereas the vision - mediated magnetic sense seems to be a pure compass sense that is based on radical - pair processes in the birds» eye (s)[for reviews], [see e.g. 8, 9].

Blending the comfort of a Mercedes S - Class with the style of a Coupe the performance pedigree of Mercedes tuning arm, the all - new S 63 AMG Coupe is a tantalising proposition, It's design offers exclusivity and luxury to match a Bentley Continental GT with the promise of handling and performance to rival the flagship Porsche Panamera, and aims to be the ultimate luxury all - rounder, Despite getting the S - Class name, the new Coupe stands out enough from the limousine on which its based, Sharp creases down the sides, a long bonnet, sloping roof and a neat spoiler integrated into the boot lid do a great job of shrinking the S - Class Coupes large dimension.;;» «MEGA SPEC»»; Our example is finished in magnetite Black and trimmed with Black Nappa leather with white stitching and AMG badges, Walnut Veneer Wood Interior, The car comes with the 360 Camera, Distronic system, Active Park Assist, Lane Assist, Brake Assist Plus, Steering Assist, Blind spot Assist, Night view Assist, Head up display, Lane Change Warning, Burmeister Sound System, Memory Package, Dual Cup Holder, MB Connect, Dynamic Front Seats with Hot / Cold and Massage Seats, Electric Roller Blind, Active Body Control, Eco Start Stop, Dynamic LED Lights, Ambient Lighting, AMG 20» Spoked Wheels, Silver Brake Calipers, Adaptive Air Suspension, AMG Sports Package, Full MB Service History, Heated Seats, Keyless Go, Panoramic Glass Roof, Power Soft Close, Satellite Navigation, Memory Electric Seats, 14 Way Electric Adjustable Front Seats, Air Conditioning, Bluetooth Telephone, Central Locking, Climate Control, DAB Digital Radio, Heated Folding Mirrors, Massage Front Seats, Park Distance Control, Reversing Camera with Guidance Lines, 8 Speed Gearbox, AMG 3 - Spoke Sports Steering Wheel, Multi Function Steering Wheel, Multiple Airbags, Anti Glare Rear View Mirrors, CD Auto changer, Day Time Running Lights, Electric Remote Boot / Hatch / Door Release, Light Design Package, Push Button Start, 2 Former Keepers, Black.

Not only to you have to keep an eye on your Yen, though — there's also Magnetite, a type of substance that keeps demons alive.

Every step you take drains your Magnetite count, meaning that you also need to keep an eye on that, too — run out, and your demons» health will slowly drain as you explore.

The Earth's magnetic field leaves its signature on volcanic rocks and certain sedimentary rocks rich in such iron - bearing minerals as magnetite.