Pleasant Ways
章节目录
共 34 段- There is another consideration, which, so far as I know, has
- Dr. Draper remarks that from purely theoretic considerations
- Now there are some terrestrial phenomena which we might expe
- Taking the four years of each cycle when sun-spots were leas
- All the methods of observing Venus in transit are affected i
- But though we may consider 80 millions of miles as a fair av
- It is difficult, indeed, to understand how doubt can exist i
- Huggins tried to recognize by the new method the effects of
- Since the preceding paragraph was written, my attention has
- The new star was first seen by Professor Schmidt at a quarte
- It _is_ conceivable (and the possibility must be taken into
- Perhaps the most remarkable instance of star-drift is that o
- The Arctic Expedition which returned to our shores in the au
- The observations of Kane and Hayes afford no reason, however
- It may seem strange, in dealing with the case of a wave whic
- One can readily understand that this enormous double region
- In this story all is consistent with the belief that the sai
- If we consider the usual account of the sea-serpent, we find
- When all the evidence is carefully weighed, we appear led to
- I have spoken here of currents passing along the wire and in
- If the insulated wire is twisted in the form of a helix or c
- Bell’s original arrangement for vocal telephony was as follo
- If a square plate of glass is held by a suitable clamp at it
- When, however, he had invented the telephone, this point was
- As to the intelligence exhibited in the conduct of the chimp
- “However numerous the troop may be, if one is wounded it is
- It may be, indeed, that in the consideration last suggested
- The supply itself should of course also vary from day to day
- Suppose, for instance, that we have one hundred cubic inches
- And now Wells was approaching the solution of the problem he
- We are thus led to the consideration of the second form in w
- The power actually at work at present in producing rain, and
- If we turn now from the consideration of the Babylonian trad
- [36] I may mention one which occurred within my own experien