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张璐大学物理学
Physical presentation and exploration experiment physics phenomemon Put pure water into the fishwash, then wash with the friction top, make the water basin and resonate, wash basin, beeping sound or to a certain degree of large amplitudes, basin can appear beautiful, water spray, the great down.finally. Friction faster, the sound wave tumbling, water spray, and the more intense. 锥体上滚The taper rolls up Demonstration purposes 1.Try derived density can be realized when the roll cone, cone Angle, guide rails, varies among the size height difference of satisfy。 2,O satisfy 1 taper try on demonstration, incorrectly placed in orbit taper cone (i.e. on track and make its axis perpendicular bisector of orbit two horns, cone of plane along the track of the size of the upward force of inclined. 3,If placed in orbit, cone slightly sloping (the axes of the orbits of perpendicular to the two not Angle bisector), research, and through the cone motion experimental test their own conclusions. * * * * * * Start 鱼洗 Fish Wash The introduction of fish wash: Ancient says “wash fish is mainly used to water and wash basin, what shape the lavatory, resemble shape today have wood, ceramic wash washing and copper. The fish says pelvic carved dragon fish, carved dragons. Call The total artifacts in the pre-qin period in peoples life has been widely used. Fish, its like a lavatory, the size of the flat, basin is a handle along each side, called the ears, Pelvic engraved with four carp, fish and fish with four between cting parabola. According to records, the scriptures into half water, hard reciprocating friction basin of ears, will soon resonance occur, the water in the basin is divided into four water injection two feet up IP arrows, and how high a buzzing sound. Experimental process Operation: will double taper roller to guide low end, release cone hands, will be rolled on。
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