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A detailed demonstration of how to make this small friction drum, including a discussion of materials needed and how different kinds of materials make for cuicas that produce different sounds.

The science behind this musical instrument, including the concepts of sound, vibration, resonance, and amplification.

An introduction to a crowd-pleasing noisemaker called a sound sandwich, which you can adjust to raise or lower its pitch.

A detailed demonstration of how to make this primitive wind instrument using little more than a straw, two craft sticks, and some rubber bands.

The science behind this instrument, including a discussion of how vibration produces sound, and how long, massive objects vibrate slowly and produce a low-pitched sound, while shorter, less massive objects vibrate quickly and produce a high-pitched sound.

Hear more from scientists working on the Ice Cube telescope at the South Pole.

Watch as three giant helium balloons are launched above Antarctica to study climate history; listen as scientists talk about balloon research.

Today we wrap up our conversations with the ANDRILL scientists (including project leader Dave Harwood) and hear about what lies ahead for the project.

Watch ANDRILL scientists examine a sediment core, find out about new developments, and discover ancient diatoms (single-celled marine organisms).

How do ANDRILL scientists drill and retrieve sediment cores from under the ice and sea, and why do they do it?