Everyday Mysteries: Secrets of Science in the HomeMacmillan, 1923 - 198 páginas |
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Página 104
... fibres can be unraveled and separated . Pull out a piece containing one single filament and see how fine it is . Such single silk fibres used to be used for sup- porting the delicate moving parts of scientific instru- ments , and for ...
... fibres can be unraveled and separated . Pull out a piece containing one single filament and see how fine it is . Such single silk fibres used to be used for sup- porting the delicate moving parts of scientific instru- ments , and for ...
Página 105
... fibre can be reeled from a single silkworm's cocoon . The silk industry was first practised commercially in China . The Chinese guarded the secret of the silk- worm very ... fibres imbedded together in a sticky Rags and Velvet Gowns 105.
... fibre can be reeled from a single silkworm's cocoon . The silk industry was first practised commercially in China . The Chinese guarded the secret of the silk- worm very ... fibres imbedded together in a sticky Rags and Velvet Gowns 105.
Página 106
Secrets of Science in the Home Charles Greeley Abbot. network of the tiny fibres imbedded together in a sticky mass which dries firmly . In order to reel off the silk fibres , the cocoons must be softened in hot water nearly of boiling ...
Secrets of Science in the Home Charles Greeley Abbot. network of the tiny fibres imbedded together in a sticky mass which dries firmly . In order to reel off the silk fibres , the cocoons must be softened in hot water nearly of boiling ...
Página 109
... fibre wool , and these fibres are carded straight , not criss- crossed as in woolens . The worsted yarn is spun into a compact smooth thread which will weave into a smooth cloth , and does not have to be " felted . " The third great ...
... fibre wool , and these fibres are carded straight , not criss- crossed as in woolens . The worsted yarn is spun into a compact smooth thread which will weave into a smooth cloth , and does not have to be " felted . " The third great ...
Página 110
... fibres are ribbonlike under the microscope , and tend to twist and crinkle slightly , something like corn leaves . These properties of the fibres are very useful to hold the thread and cloth together , just as the overlapping scales and ...
... fibres are ribbonlike under the microscope , and tend to twist and crinkle slightly , something like corn leaves . These properties of the fibres are very useful to hold the thread and cloth together , just as the overlapping scales and ...
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Términos y frases comunes
Arab Arica atoms bacteria baking powder balance wheel bell blueberries boiling bolometer bottom called Calories carbonic acid caustic cent CHARLES GREELEY ABBOT chemical chimney clock coal colors compounds cooking cool copper cotton depths diameter dish dissolve earth electric Fahrenheit fathoms feet fibres fire flapping rod freezing furnace George George Anson glass glycerides green heat hole hydrogen inches iron keep length less light liquid magnetic milk mirror molecules nearly never ocean old shoes oxygen pail Pasteur pendulum piano pipe plants PLATE plumber pond salt screw sewer ship silk smoke pipe soap bubbles sodium solar cooker solder sound steam stick stop strong substances sun rays surface Techman temperature thing thread tree tube turn vegetables vibration violet vitamines warm water wheel waves wire wonderful wooden wool young Anson
Pasajes populares
Página 125 - We were drawing nine! My hands were in a nerveless flutter. I could not ring a bell intelligibly with them. I flew to the speakingtube and shouted to the engineer: " Oh, Ben, if you love me, back her! Quick, Ben! Oh, back the immortal soul out of her!
Página 14 - They mount up to the heaven, they go down again to the depths ; their soul is melted because of trouble, They reel to and fro, and stagger like a drunken man, and are at their wit's end.
Página 15 - They reel to and fro, and stagger like a drunken man, and are at their wit's end. Then they cry unto the Lord in their trouble, and he bringeth them out of their distresses. He maketh the storm a calm, so that the waves thereof are still. Then are they glad because they be quiet; so he bringeth them unto their desired haven.
Página 138 - I know that my REDEEMER liveth, And that He shall stand in the latter day upon the earth: And though after my skin worms destroy this body, Yet in my flesh shall I see God : Whom I shall see for myself, And mine eyes shall behold, and not another.
Página 104 - Hark ! hark ! the dogs do bark, The beggars are coming to town, Some in rags and some in tags, And some in velvet gowns.
Página 137 - At last divine Cecilia came, Inventress of the vocal frame ; The sweet enthusiast, from her sacred store, Enlarged the former narrow bounds, And added length to solemn sounds, With nature's mother- wit, and arts unknown before.
Página 30 - Take us the foxes, the little foxes, that spoil the vines: for our vines have tender grapes.
Página 139 - Some talk of Alexander, And some of Hercules ; Of Hector and Lysander, And such great names as these...
Página 190 - This book was written at Orrhoa, a city of Mesopotamia, by the hands of a man named Jacob, in the year seven hundred and twenty-three. In the month Tishrin the latter it was completed.
Página 124 - Half twain!" This was frightful! I seized the bell-ropes and stopped the engines. "Quarter twain! Quarter twain! Mark twain!" I was helpless. I did not know what in the world to do. I was quaking from head to foot, and I could have hung my hat on my eyes, they stuck out so far.