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Robert Stawell Ball - The intrinsic brightness of...
The intrinsic brightness of theSun is fully 5,000 times as great as if the whole surface were formed of the molten steel just issuing from the Bessemer converter. (Robert Stawell Ball)

The intrinsic brightness of theSun is fully 5,000 times as great as if the whole surface were formed of the molten steel just issuing from the Bessemer converter.

Robert Stawell Ball

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brightness converter great intrinsic issuing melt steel surface times bessemer

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