An essay for the recording of illustrious providences

Also D. Brown shows, that if we erect a red hot Wire until it cool, then hang it up with Wax and untwisted Silk where the lower end and that which cooled next the Earth does rest, that is the Northern point. And if a Wire be heated only at one end, according as the end is cooled upwards or downwards, it respectively requires a verticity. He also observes, if a Load-stone be made red hot in the fire, it amits the magnetical vigour it had before, and acquireth another from the Earth, in its refrigeration, for that part which cooleth next the Earth will acquire the respect of the North; the experiment whereof he made in a Load-stone of parallelogram or long square figure, wherein only inverting the extremes as it came out of the fire, he altered the Poles or faces thereof at pleasure. Unto some such reason as this, must the wonderful change occasioned by the Lightning in the Compasses of Mr. Lad's Vessel be ascribed: probably the heat of the Lightning caused the Needle to lose its virtue, and the Compass in the Bidikle might stand pointed to the South, and that unhung in the Locker to the West, when they grew cold again, and accordingly ⟨p. 109⟩continue pointing so ever after.

Also D. Brown shews, that if we erect a red hot Wire until it cool, then hang it up with Wax and untwisted Silk where the lower end and that which cooled next the Earth does rest, that is the Northern point. And if a Wire be heated only at one end, according as the end is cooled upwards or downwards, it respecttively requires a verticity. He also observes, if a Load-stone be made red hot in the fire, it amits the magnetical vigor it had before, and acquireth another from the Earth, in its refrigeration, for that part which cooleth next the Earth will acquire the respect of the North; the experiment whereof he made in a Load-stone of parallelogram or long square figure, wherein only inverting the extreams as it came out of the fire, he altered the Poles or faces thereof at pleasure. Unto some such reason as this, must the wonderful change occasioned by the Lightning in the Compasses of Mr. Lad's Vessel be ascribed: probably the heat of the Lightning caused the Needle to lose its vertue, and the Compass in the Bidikle might stand pointed to the South, and that unhung in the Locker to the West, when they grew cold again, and accordingly ⟨p. 109⟩continue pointing so ever after.