Suppose a flash of lightning come from a cloud 3 miles distant from the earth, and the thunder be heard in 23 seconds after the flash is seen, how fast does sound travel? (6.) The sun is 95 millions of miles from the earth, and it takes 8 minutesanbsp;...
|Title||:||A School Compendium of Natural and Experimental Philosophy ... Twenty-second edition, with additions, etc|
|Author||:||Richard Greene PARKER|