Scientific Dialogues for the Instruction and Entertainment of Young People: In which the First Principles of Natural and Experimental Philosophy are Fully Explained and Illustrated |
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Common terms and phrases
air-pump angle appear atmosphere axis axle ball body bottom called cause centre of gravity centre of motion circle concave conductor consequently CONVERSATION convex convex lens degrees diameter direction distance diurnal motion earth eclipse elastic electric fluid equal equator experiment explain fall feet figure fixed stars force fulcrum glass grains greater heat heavens heavier hydrometer inches inclined plane Jupiter kind length lens lever machine magnet matter means mechanical power mercury metal millions of miles moon move multiplied nature object observe orbit ounces Papa particles pass pendulum perpendicular piece pipe piston planets poles pound weight pounds pressure principle proportion pulleys quantity QUESTIONS FOR EXAMINATION quicksilver rays of light refraction retina rise round Saturn screw side space specific gravity square substances suppose surface tube valve velocity vessel wedge weight wheel wire