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For converting electrical energy into mechanical energy we used a special machine.
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Heating the substance at high temperatures may change its properties.
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insists on using this substance in the experiment.
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Measuring resistance before the beginning of the experiment was necessary.
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The English realists sought for new ways and means of revealing the truth of life.
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Heat may be produced by burning coal, "gas or any other fuel.
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I remember their having adopted this system as being more economical.
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The possibility of chemical energy being transformed into energy is evident.
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In spite of not having any university education, Faraday made his great discoveries.
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Einstein's being awarded the Nobel prize in physics soon became widely known.
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Heating copper from 0 to 100 increases its resistance about 40%.
0 100 40%.
Measuring resistance is necessary in many experiments.
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There was absorbing gases on the surfaces of solids.
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