The Museum of Science and Art, Volumes 5-6Dionysius Lardner Walton and Maberly, 1855 - Arts |
Other editions - View all
Common terms and phrases
angle apparent magnitude appear ascertained astronomical atmosphere atmospheric pressure attached axis axle balance-wheel barrel body boiler called centre chronometric clock colour column commencement consequently cornea cylinder diameter direction disc distance diurnal motion earth effect engine equal equinox escapement-wheel expedient force fusee glass greater heat imparted inch insect instrument interval John Herschel Julian calendar larva length less light liquid locomotive lunar phases magnified manner means measure Mercedonius mercury meridian microscope miles milk minute months moon motion Neptune noon object observed optical orbit oscillation pallet pass pendulum perception pinion piston placed planet position precisely pressure produced proportion pump quantity ratchet-wheel rendered represented in fig retina revolution revolve round scale seen shown in fig sidereal day space steam successive supposed surface teeth telescope temperature tion tooth tube Uranus valve velocity vertical vibration visible vision vitreous humour weight wheel
Popular passages
Page 117 - By no means, sir. Time travels in divers paces with divers persons. I'll tell you who Time ambles withal, who Time trots withal, 3:5 who Time gallops withal, and who he stands still withal.
Page 170 - On such planets giants might exist; and those enormous animals, which on earth require the buoyant power of water to counteract their weight, might there be denizens of the land.
Page 118 - And God said, Let there be lights in the firmament of the heaven to divide the day from the night ; and let them be for signs and for seasons, and for days,
Page 117 - With a priest that lacks Latin, and a rich man that hath not the gout; for the one sleeps easily, because he cannot study ; and the other lives merrily, because he feels no pain : the one lacking the burden of lean and wasteful learning ; the other knowing no burden of heavy tedious penury.
Page 104 - Pascal, " it be really the weight of the atmosphere under which we live that supports the column of mercury in Torricelli's tube, we shall find, by transporting this tube upwards in the atmosphere, that in proportion as it leaves below it more and more of the air, and has consequently less and less above it, there will be a less column sustained in the tube, inasmuch as the weight of the air above the tube, which is declared by Torricelli to be the force which sustains it, will be diminished by the...
Page 97 - Mr. Scott is recorded in the Philosophical Transactions, in which full reds and full greens appeared alike, while yellows and dark blues were very easily distinguished. Mr. Scott's father, his maternal uncle, one of his sisters, and her two sons, had all the same imperfection. Our celebrated chemist, Mr.
Page 156 - Centigrade thermometer, the freezing point is marked 0°, or zero, and the boiling point 100° ; the distance between the freezing and boiling points is divided into 100 equal parts; these equal divisions are carried as far below the freezing point and above the boiling point as desired.
Page 96 - Acarus scabiei, the operator must examine carefully the parts surrounding each pustule, and he will generally find in the early stage of the disease a red spot or line communicating with it; this part, and not the pustule, must be probed with a pointed instrument, and the insect, if present, turned out of its lurking-phicc ; the operator must not be disappointed by repeated failures...
Page 97 - I had occasion to examine, saw only two colors in the spectrum, viz. yellow and blue. When the middle of the red space was absorbed by a blue glass, he saw the black space, with what he called the yellow, on each side of it. This defect in the perception of color was experienced by the late Mr.
Page 107 - The power of flies, and other insects, to walk on ceilings, smooth pieces of wood, and other similar surfaces, in doing which the gravity of their bodies appears to have no effect, is explained upon the same principle. Their feet are provided with an apparatus similar exactly to the leather applied to the stone 237.