Popular Books on Natural Science

Popular Books on Natural Science
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Bernstein Aaron David. Popular Books on Natural Science

POPULAR TREATISE ON NATURAL SCIENCE

PART I. THE WEIGHT OF THE EARTH

CHAPTER I. HOW MANY POUNDS THE WHOLE EARTH WEIGHS

CHAPTER II. THE ATTEMPT TO WEIGH THE EARTH

CHAPTER III. DESCRIPTION OF THE EXPERIMENT TO WEIGH THE EARTH

PART II. VELOCITY

CHAPTER I. VELOCITIES OF THE FORCES OF NATURE

CHAPTER II. HOW CAN THE VELOCITY OF THE ELECTRIC CURRENT BE ASCERTAINED

PART III. NUTRITION

CHAPTER I. NOTHING BUT MILK

CHAPTER II. MAN THE TRANSFORMED FOOD

CHAPTER III. WHAT STRANGE FOOD WE EAT

CHAPTER IV. HOW NATURE PREPARES OUR FOOD

CHAPTER V. WHAT BECOMES OF THE MOTHER'S MILK AFTER IT HAS ENTERED THE BODY OF THE CHILD?

CHAPTER VI. HOW THE BLOOD BECOMES THE VITAL PART OF THE BODY

CHAPTER VII. CIRCULATION OF MATTER

CHAPTER VIII. FOOD

CHAPTER IX. ABOUT NOURISHMENT

PART IV. LIGHT AND DISTANCE

CHAPTER I. SOMETHING ABOUT ILLUMINATION

CHAPTER II. ILLUMINATION OF THE PLANETS BY THE SUN

PART V. THE WONDERS OF ASTRONOMY

CHAPTER I. A WONDERFUL DISCOVERY

CHAPTER II. MAIN SUPPORT OF LEVERRIER'S DISCOVERY

CHAPTER III. THE GREAT DISCOVERY

PART VI. METEOROLOGY

CHAPTER I. SOMETHING ABOUT THE WEATHER

CHAPTER II. OF THE WEATHER IN SUMMER AND WINTER

CHAPTER III. THE CURRENTS OF AIR AND THE WEATHER

CHAPTER IV. THE FIRM RULES OF METEOROLOGY

CHAPTER V. AIR AND WATER IN THEIR RELATIONS TO WEATHER

CHAPTER VI. FOG, CLOUDS, RAIN, AND SNOW

CHAPTER VII. HOW HEAT IN THE AIR BECOMES LATENT, AND HOW IT GETS FREE AGAIN

CHAPTER VIII. LATENT HEAT PRODUCES COLD; FREE HEAT, WARMTH

CHAPTER IX. RULES ABOUT THE WEATHER, AND DISTURBANCES OF THE SAME

CHAPTER X. THE CHANGEABLENESS OF THE WEATHER WITH REGARD TO OUR GEOGRAPHICAL POSITION

CHAPTER XI. ABOUT THE DIFFICULTY AND POSSIBILITY OF DETERMINING THE WEATHER

CHAPTER XII. THE FALSE WEATHER-PROPHETS

CHAPTER XIII. HAS THE MOON INFLUENCE UPON THE WEATHER?

PART VII. OUR ARTICLES OF FOOD

CHAPTER I. THE RAPID RENEWAL OF THE BLOOD IS AN ADVANTAGE

CHAPTER II. DIGESTION

CHAPTER III. COFFEE

CHAPTER IV. COFFEE AS A MEDICINE

CHAPTER V. USEFULNESS AND HURTFULNESS OF COFFEE

CHAPTER VI. BREAKFAST

CHAPTER VII. LIQUOR

CHAPTER VIII. INJURIOUSNESS OF DRINKING LIQUOR

CHAPTER IX. THE POOR AND THE LIQUOR

CHAPTER X. THE CONSEQUENCES OF INTEMPERANCE AND ITS PREVENTION

CHAPTER XI. DINNER

CHAPTER XII. NECESSITY FOR VARIETY IN FOOD

CHAPTER XIII. BROTH

CHAPTER XIV. WHAT IS BEST TO BE PUT INTO SOUP?

CHAPTER XV. LEGUMINOUS VEGETABLES

CHAPTER XVI. MEAT AND VEGETABLES

CHAPTER XVII. THE NAP AFTER DINNER

CHAPTER XVIII. WATER AND BEER

CHAPTER XIX. SUPPER

Отрывок из книги

Natural philosophers have considered and investigated subjects that often appear to the unscientific man beyond the reach of human intelligence. Among these subjects may be reckoned the question, "How many pounds does the whole earth weigh?"

One would, indeed, believe that this is easy to answer. A person might assign almost any weight, and be perfectly certain that nobody would run after a scale, in order to examine, whether or not an ounce were wanting. Yet this question is by no means a joke, and the answer to it is by no means a guess; on the contrary, both are real scientific results. The question in itself is as important a one, as the answer, which we are able to give, is a correct one.

.....

The milk passes from the child's mouth through the gullet into the stomach. While yet in the mouth, the milk is mixed with a certain liquid called saliva. This saliva possesses the quality of preparing the milk for the necessary change which will take place, when it reaches the child's stomach. The principal work, however, is carried on in the stomach itself. Its sides secrete a liquid called "gastric juice," whose business it is, to transform into a pulp milk, and also solid food, provided the latter be well masticated and moistened.

Science has taught us to prepare gastric juice artificially. The process of digestion, that is, the transformation of solid food – the crust of bread, meat, etc. – into a pulp, may nowadays be observed in a glass filled with warm, artificial, gastric juice.

.....

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