Don't worry about the vibration of the electric toothbrush will let the teeth loose
The vibration frequency of electric toothbrushes is 100-250 times the speed of hum...
This kind of small paper man dances magic, really does not tie the fish line ~
WyrVibration is a phenomenon common to the universe. Even a static dust, in the mi...
For a key step, the sound waves for the first time to achieve control and modulation on the chip
In the latest issue of Harvard University, a scientist in the United States wrote in the latest issue of Nature · Electronics that they first demonstrated how to use the electric field to control a
Why can there always be a "singing god" in the bathroom?| Science Pavilion
For everyone, bathing,It is a thing that is often done.Some people think that bath...