. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ating fromthe deadly carnage of battle. Touch yourhand against this mass—it is hot; gazeintently upon it and your eye is ruined byits glare. Had we but Natures match- ihiugs, as the artist by a mixture of paintsmakes them yield his uponthe canvas. But in Ihe process of sepa-rating atoms that are united and reunitingatoms that arc separated, there is pro-duced a motion, technically styled molec-ular motion, commonly called heat. Weplace our coal upon the grates of an en-gine, t
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ating fromthe deadly carnage of battle. Touch yourhand against this mass—it is hot; gazeintently upon it and your eye is ruined byits glare. Had we but Natures match- ihiugs, as the artist by a mixture of paintsmakes them yield his uponthe canvas. But in Ihe process of sepa-rating atoms that are united and reunitingatoms that arc separated, there is pro-duced a motion, technically styled molec-ular motion, commonly called heat. Weplace our coal upon the grates of an en-gine, the heat of the fire beneath it lib-erates the atoms of carbon, and in thefircbox space above they unite withatoms of oxygen from the air to formcarbon dioxide gas. This is the processof combustion which, if complete, fills thefire-box with a motion which we wouldsay, speaking technically, is molecular, butcommonly, a white heat. These atoms ofcarbon and oxygen, being themselves insuch an awful motion, according to thelaws of nature, yield a part of their mo-tion to the atoms composing the sheets. ROGERS PRAIRIE LOCOMOTIVE FOR ILLINOIS CENTRAL-SEE FRONT PAGE. erywhcre throughout the universe, nii.\edwith and surrounding the particles con-stituting the common air. That as themolecular particles of the sun are in rapidvibration, they produce in this ether aseries of waves which chase each otheraway at the rate of one hundred andeighty-six thousand miles per second, andstriking upon the earths surface are man-ifested to us as light and heat. Thus itis, as air is the conductor of sound, etheris the conductor of light; as sound is aseries of waves produced by the vibratingof an object in the air. so is light a seriesof waves produced by the vibrating of aparticle in the ether. However strange incomparison with our comprehension ofthem, each is but a mode of motion. LIGHT AND HE.\T. The mill of the gods grinds slow, butgrinds to atoms. In that mill we mayplace an object and stand by
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