The Popular Science Monthly, Volume 65McClure, Phillips and Company, 1904 - Science |
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Page 7
... various parts of the world have systematically observed the forms of the solar flames on every clear day , giving us a continuous record of these phenomena now ex- tending back for more than thirty years . From a study of this record ...
... various parts of the world have systematically observed the forms of the solar flames on every clear day , giving us a continuous record of these phenomena now ex- tending back for more than thirty years . From a study of this record ...
Page 10
... been accom- plished , the possibility of making another and much more important application of the instrument had presented itself . A photographic study of the spectrum of various portions of the sun's. ΙΟ POPULAR SCIENCE MONTHLY .
... been accom- plished , the possibility of making another and much more important application of the instrument had presented itself . A photographic study of the spectrum of various portions of the sun's. ΙΟ POPULAR SCIENCE MONTHLY .
Page 11
study of the spectrum of various portions of the sun's surface had shown the existence at many points of great regions of calcium vapor , luminous enough to render their existence evident through the pro- duction of bright H and K lines ...
study of the spectrum of various portions of the sun's surface had shown the existence at many points of great regions of calcium vapor , luminous enough to render their existence evident through the pro- duction of bright H and K lines ...
Page 12
... various latitudes has been made . This shows that the calcium regions , like the sun - spots , complete a rotation in much shorter time at the solar equator than at points nearer the poles . In other words , the sun does not rotate as a ...
... various latitudes has been made . This shows that the calcium regions , like the sun - spots , complete a rotation in much shorter time at the solar equator than at points nearer the poles . In other words , the sun does not rotate as a ...
Page 18
... various densities in the sun is complete , and that we may here find a way of photo- graphing the vapor at low levels without admitting to the photographic plate any light that comes from the rarer vapors at higher levels . It is simply ...
... various densities in the sun is complete , and that we may here find a way of photo- graphing the vapor at low levels without admitting to the photographic plate any light that comes from the rarer vapors at higher levels . It is simply ...
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academy American animals appear Association astronomical become body British cent century Chattanooga chemistry chromosphere Colorado College Copernicus curves Darwin decade dextrality disease doctrine earth eclipse electricity evolution existence experiments fact flocculi German hand Herder ical immigrants important increase insect interest investigation Italian knowledge known labor laboratory less limbs lines living Lord Monboddo Magyar mathematics matter Maupertuis means ment methods mountains movement mutability of species mutation nature observed organs Origin of Species original perhaps period phenomena philosophical photographs photosphere physical plants plateau political possible present president problem Professor question races region salt San Jose scale scale insect scientific seems solar species spectroheliograph spelling statolith teachers theory things thorium tion University vapor variations Vries women word-curves words writing yellow fever
Popular passages
Page 289 - And though all the winds of doctrine were let loose to play upon the earth, so Truth be in the field, we do injuriously by licensing and prohibiting to misdoubt her strength. Let her and Falsehood grapple; who ever knew Truth put to the worse in a free and open encounter?
Page 531 - I am labouring to lay the foundation, not of any sect or doctrine, but of human utility and power.
Page 258 - And every oblation of thy meat offering shalt thou season with salt; neither shalt thou suffer the salt of the covenant of thy God to be lacking from thy meat offering: with all thine offerings thou shalt offer salt.
Page 337 - It is a pity to see Lord Monboddo publish such notions as he has done: a man of sense, and of so much elegant learning. There would be little in a fool doing it; we should only laugh; but when a wise man does it we are sorry. Other people have strange notions; but they conceal them. If they have tails they hide them; but Monboddo is as jealous of his tail as a squirrel.
Page 211 - There can also be little doubt that the tendency to vary in the same manner has often been so strong that all the individuals of the same species have been similarly modified without the aid of any form of selection.
Page 532 - It can be read maliciously, but abstain. She says of Romance : ' The young who avoid that region escape the title of Fool at the cost of a celestial crown.
Page 506 - Natural science must ever regard knowledge as the product of irrational conditions, for in the last resort it knows no others. It must always regard knowledge as rational, or else science itself disappears. In addition, therefore, to the difficulty of extracting from experience beliefs which experience contradicts, we are confronted with the difficulty of harmonising the pedigree of our beliefs with their title to authority. The more successful we are in explaining their origin, the more doubt we...
Page 265 - Lazear also experimented on himself at the same time, but was not infected. Some days later, while in the yellow-fever ward, he was bitten by a mosquito and noted the fact carefully. He acquired the disease in its most terrible form and died a martyr to science and a true hero. No other fatality occurred among the brave men who, in the course of the experiments, willingly exposed themselves to the infection of the dreaded disease. A camp was especially constructed for the experiments about 4 miles...