Science and Technology

Reflection or echo of sounds Reflection of the sound is called echo. If the sound is interrupted somewhere in the wave, it returns to the previous place again, it is a reflection of sound. The sound that is reflected, so the echo. That is to say that the recurrence of …

How ice swim in the water? How ice swim in the water? The maximum density of water at 4 ° C. But water turns into ice at temperature 0 ° Celsius. If the water becomes solid ice then the growth increases. If 11 unit water turns into ice, it becomes …