Book contents
- Frontmatter
- PREFACE
- Contents
- NAUTICAL
- WAR AND HUNTING
- ARCHITECTURE
- TOOLS
- OPTICS
- USEFUL ARTS
- CHAPTER I PRIMITIVE MAN AND HIS NEEDS.—EARTHENWARE.—BALL-AND-SOCKET JOINT.—TOGGLE OR KNEE JOINT
- CHAPTER II CRUSHING INSTRUMENTS.—THE NUT-CRACKERS, ROLLING-MILL, AND GRINDSTONE.—PRESSURE OF ATMOSPHERE.—SEED DIBBLES AND DRILLS
- CHAPTER III CLOTH-DRESSING.—BRUSHES AND COMBS.—BUTTONS, HOOKS AND EYES, AND CLASP
- CHAPTER IV THE STOPPER, OR CORK.—THE FILTER
- CHAPTER V THE PRINCIPLE OF THE SPRING.—THE ELASTIC SPRING.—ACCUMULATORS.—THE SPIRAL SPRING
- CHAPTER VI SPIRAL AND RINGED TISSUES.—VARIOUS SPRINGS IN NATURE AND ART
- CHAPTER VII FOOD AND COMFORT
- CHAPTER VIII DOMESTIC COMFORT
- CHAPTER IX ARTIFICIAL WARMTH.—RING AND STAPLE.—THE FAN
- CHAPTER X WATER, AND MEANS OF PROCURING IT
- CHAPTER XI AËROSTATICS.—WEIGHT OF AIR.—EXPANSION BY HEAT
- CHAPTER XII
- CHAPTER XIII TELESCOPIC TUBES.—DIRECT ACTION.—DISTRIBUTION OF WEIGHT.—TREE-CLIMBING.—THE WHEEL
- CHAPTER XIV
- CHAPTER XV
- CHAPTER XVI TILLAGE.—DRAINAGE.—SPIRAL PRINCIPLE.—CENTRI-FUGAL FORCE
- CHAPTER XVII OSCILLATION.—UNITED STRENGTH.—THE DOME
- ACOUSTICS
- INDEX
- Frontmatter
- PREFACE
- Contents
- NAUTICAL
- WAR AND HUNTING
- ARCHITECTURE
- TOOLS
- OPTICS
- USEFUL ARTS
- CHAPTER I PRIMITIVE MAN AND HIS NEEDS.—EARTHENWARE.—BALL-AND-SOCKET JOINT.—TOGGLE OR KNEE JOINT
- CHAPTER II CRUSHING INSTRUMENTS.—THE NUT-CRACKERS, ROLLING-MILL, AND GRINDSTONE.—PRESSURE OF ATMOSPHERE.—SEED DIBBLES AND DRILLS
- CHAPTER III CLOTH-DRESSING.—BRUSHES AND COMBS.—BUTTONS, HOOKS AND EYES, AND CLASP
- CHAPTER IV THE STOPPER, OR CORK.—THE FILTER
- CHAPTER V THE PRINCIPLE OF THE SPRING.—THE ELASTIC SPRING.—ACCUMULATORS.—THE SPIRAL SPRING
- CHAPTER VI SPIRAL AND RINGED TISSUES.—VARIOUS SPRINGS IN NATURE AND ART
- CHAPTER VII FOOD AND COMFORT
- CHAPTER VIII DOMESTIC COMFORT
- CHAPTER IX ARTIFICIAL WARMTH.—RING AND STAPLE.—THE FAN
- CHAPTER X WATER, AND MEANS OF PROCURING IT
- CHAPTER XI AËROSTATICS.—WEIGHT OF AIR.—EXPANSION BY HEAT
- CHAPTER XII
- CHAPTER XIII TELESCOPIC TUBES.—DIRECT ACTION.—DISTRIBUTION OF WEIGHT.—TREE-CLIMBING.—THE WHEEL
- CHAPTER XIV
- CHAPTER XV
- CHAPTER XVI TILLAGE.—DRAINAGE.—SPIRAL PRINCIPLE.—CENTRI-FUGAL FORCE
- CHAPTER XVII OSCILLATION.—UNITED STRENGTH.—THE DOME
- ACOUSTICS
- INDEX
Summary
MEANS AND APPLIANCES
IN this chapter we will take some miscellaneous appliances of force both in Art and Nature.
In the accompanying illustration is shown the Cassava Press of Southern America, a most effective and simple instrument for extracting the juices of the root. These juices are poisonous when raw, but, when properly boiled and cooked, they make an excellent sauce.
The press in question is an elastic tube made of flat strips of cane woven together exactly like the “Siamese Link,” which will be presently described. The cassava root, after having been scraped until it resembles horseradish, is forced into the press until it can hold no more. The result is, that the tube is shortened and thickened, being widest in the middle.
It is then hung by its upper loop to the horizontal beam of a hut. A long pole is passed through the lower loop, the short end is placed under a projecting peg on the upright post of the house, and a heavy weight attached to the longer end. A powerful leverage is thus obtained, the tube is forcibly shortened, and the juice exudes through the apertures of the woven cane.
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- Nature's TeachingsHuman Invention Anticipated by Nature, pp. 447 - 459Publisher: Cambridge University PressPrint publication year: 2009First published in: 1877