Sentences with phrase «make magnetite»

But in 2003 two papers noted that there are other ways to make magnetite crystals, such as slamming a rock from space onto the Martian surface.

Not exact matches

But in order for today's magnetic intensity readings of the magnetite to reveal the actual conditions of that era, the researchers needed to make sure the magnetite within the zircon remained pristine from the time of formation.

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.

These temporarily magnetise the magnetite particles, now attached to carboxylic molecules, making them form long chains, joined at their «poles», which aggregate in clumps a millimetre or two across.

Mined to make the first compass needles, the mineral magnetite is also made by migratory birds and other animals to allow them to sense north and south and thus navigate in cloudy or dark atmospheric conditions or under water.

Iron makes for a stronger magnet, so the bacteria are very selective when they form their magnetite compasses.