Category: Engineering & Technology
Compound engines are tending to come more and more into use, inasmuch as they present many advantages over other kinds, especially as regards the saving they effect in fuel, and their great regularity, due to the adjusting of the cranks at right angles.
There is another kind of instrument which may be used to measure the flow of the water--a paddle wheel or screw. When the water is flowing rapidly, the wheel will turn rapidly;...
4. Part 4Let us examine this statement and see if the reason why the horse brings the foot down flat is because the frog is good, and has a good hold on the ground. The reason appears to...
3. Part 3The first operation consisted in running well squared spruce beams, 12 in. × 8 ft., through the walls and under the ground floor. These beams projected beyond the wall on each s...
5. Part 5"There is a portrait of Theophilus Youngs. He married a clairvoyant many years ago in Boston and disappeared. His widow pretended to recognize his body in one that was found in...
1. Part 1Compound engines are tending to come more and more into use, inasmuch as they present many advantages over other kinds, especially as regards the saving they effect in fuel, and...
10. Part 10We have already seen that only certain metals are found native, while the hard metals under normal conditions remain in the form of oxide or mineral. They have a strong affinity...
7. Part 7_Form of Projections._--The principle is maintained by all the best English and French architects that projections (_i. e_., cornices, sills, lintels, etc.) should be "throated,...
9. Part 9Professor Mosso, of Turin, has lately made some interesting experiments on persons who had lost portions of the cranial bones, using Marey's ingenious hydro-sphygmograph. Noting...
8. Part 8An editorial comment in _The Medical Record_ of April 14th, upon a paper by Dr. Hamilton, of Philadelphia, may serve as an apology for some remarks on a subject which ordinarily...
6. Part 6In Jersey City, the proportions of the materials are much as in Staten Island. The selection of the dark trap from the Heights behind the city, for the construction of many fron...
11. Part 11_North Germany_.--The wrought metal contains 8 to 16 per cent. of tin, with frequently 1 per cent. of nickel. A sword contained only 5 per cent. of nickel, an ax 24 per cent. Th...