Sound is a form of energy that travels in waves through matter (like air, water, or glass). When you tap the bottle, you create vibrations - rapid back and forth movements - in both the glass and ...

The Closca Bottle Wave is a portable bottle made of stainless steel, completely free of BPA, toxins and phthalates, and it does not add flavor to the water.‎ In addition, its outer silicone ...