6 ms·
https://secure.wikimedia.org/wikipedia/en/wiki/Vortex_cooler https://secure.wikimedia.org/wikipedia/en/wiki/Vortex_cooler
by silentOpen 17y ago
https://secure.wikimedia.org/wikipedia/en/wiki/Vortex_cooler https://secure.wikimedia.org/wikipedia/en/wiki/Vortex_cooler