A tuning fork (mounted on a resonance box) is made to resonate when a second identical tuning fork is rung nearby. This is beacause the first tuning fork's driving frequncy is the same as the second ...

The Keefer Bar, located in Vancouver’s Chinatown, has the appearance of a postwar back-alley Asian apothecary-cum-opium-den. Behind the bar are jars of medicinal herbs—astragalus, magnolia bark, a ...

Place the rubber mallet and tuning fork on the lectern with the open end of the resonance box facing the audience. Details of the tuning fork can't be seen in a large lecture hall, but the sound can ...