Comment by Mobyphobia on Initiation Ceremony · 2008-04-01T23:39:50.000Z · LW · GW

Fun Fact:

Electrical Engineers have been trying to budge "Old Yellow," the low-pressure sodium vapor lamp, from the top of the efficiency heap since the mid-1960s. They found some materials possibilities in the 1990s, but all have turned out to be too expensive.