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Mark Jackson
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#F1 McLaren are confident they will be ready for Jerez despite their 2014 car having not yet passed all the mandatory crash tests. With pre-season testing set to get underway in less than two weeks, reports have emerged claiming McLaren's new MP4-29 may not be ready in time.

McLaren spokesman (to Autosport): "At this time of the year it's normal for all teams to be pushing everything to the limit in an effort to extract the most performance, and crash tests are no different. McLaren will pass all the tests prior to track running."
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"The magnetic putty will eventually arrange itself so that the outer surface is as evenly distributed around the magnet as possible. 

Ferromagnetic particles in the putty are strongly attracted to the magnet and very slowly engulf the surface of the magnet. The magnet shown in the picture is a strong neodymium iron boron magnet. It's a very powerful magnet for its size and could erase magnetic stripes found in credit cards and damage electronics!

The putty looks and feels like regular silly putty, but the difference lies in the fact that it has been infused with millions of micron-sized ferrous particles (most often iron oxide powder). The magnetic putty is not actually magnetic by itself, since the infused particles are made of iron powder.

The presence of the strong neodymium iron boron magnet (the silver cube in the video) magnetizes the ferromagnetic particles in the putty. When this happens, the ferrous particles align with each other and this alignment generates north and south magnetic poles, making the putty into a temporary magnet. Once magnetized, the putty will remain magnetized even after the rare-earth magnet has been removed from the putty."

[source: Magnetic Putty Time Lapse 1080p]
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