Sentences with phrase «tiny magnetite»

The fluid proposed by Ji - Ping Huang of Fudan University in Shanghai, China, and colleagues, contains tiny magnetite balls coated with a layer of silver, possibly with an additional polymer coating to keep them from clumping.

Not exact matches

He and Kent used a bandsaw to trim the samples into sugar cube - size blocks and inserted them into a magnetometer, which measured the polarity of tiny grains of the minerals hematite and magnetite contained in the sediment.

One group argues that tiny crystals of a magnetic mineral known as magnetite, which is found in the brains of some birds and in bacteria, are key.

The findings are consistent with the idea, first proposed nearly 40 years ago, that animals have tiny magnetic particles of an iron - containing compound called magnetite in their bodies.

Thomas - Keprta also identified tiny crystals of magnetite overlapping the globules.