sound

Showing 95 posts tagged sound

From the BBC’s Ocean Giants documentary, watch this incredible clip to hear the extraordinary and mysterious song of the Humpback Whale. Why do they sing (or hum)? Does it serve a purpose? Are they making music for pleasure? Are they talking?

If this clip disappears, you can find the entire documentary on Amazon. And in the archives: watch more whale videos, including a surprise diving encounter with a Humpback Whalethis huge baby Sperm Whale, and Whale Fall (After Life of a Whale).

What Does Sound Look Like? NPR’s SkunkBear shows us the differences in fluid densities — in the form of compression waves in a gas, the air that surrounds us — thanks to the light passing through those fluids. Schlieren flow visualization and a high speed video camera make it possible. 

When light travels through areas of different air density, it bends. You’ve probably noticed the way distant pavement seems to shimmer on a hot day, or the way stars appear to twinkle. You’re seeing light that has been distorted as it passes through varying air densities, which are in turn created by varying temperatures and pressures.

Schlieren Flow Visualization can be used to visually capture these changes in density: the rising heat from a candle, the turbulence around an airplane wing, the plume of a sneeze … even sound. 

More seriously amazing physics videos the archives: underwater bubble rings, a fluidized bed of sand, and huge wingtip vortices.

This cover is the bridge between a popular animated film (that you may have heard of) and music made with “instruments” found in the kitchen – one of our favorite DIY activities. This is Let It Go performed with wine glasses, pots, pans, and a gallon of milk by YouTuber Dan Newbie.

Related watching: this kid-filled Depeche Mode cover, this glass harp Leonard Cohen cover, Beethoven’s Ninth on a Toolbox Glockenspiel, this musical kettle, and a handbell rendition of “Married Life” from Pixar’s UP.

via Daily Dot.