JeezyMcNuggles
Inactive
- Feb 23, 2018
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- I suck, but nobody really notices
Valves open and close to control material. Tubes transport material.There is a difference between the valve and the tube. The valve has a sealed glass covering with electrodes inside and lets an amplifier make a tiny voltage big enough to drive a loudspeaker. The tube is an underground railway network in London.