Liquid metal cooled reactor Clementine was the first liquid metal cooled nuclear reactor and used mercury coolant, thought to be the obvious choice since it is liquid at room temperature. However, because of disadvantages including high toxicity, high vapor pressure even at room temperature, low boiling point, producing noxious fumes when heated, relatively low thermal conductivity, and a high neutron cross-section, it has fallen out of favor. Sodium and NaK (a eutectic sodium-potassium alloy) do not corrode steel to any significant degree and are compatible with many nuclear fuels, allowing for a wide choice of structural materials. They do, however, ignite spontaneously on contact
Liquid Metal (Sirius XM) be heard on Dish Network channel 6027. Until February 9, 2010, it was on Direct TV channel 841. Sirius XM pre-empted Liquid Metal on March 14, 2009 at 6pm ET for Mandatory Metallica until April 13, 2009 at 3am ET. "Liquid Metal" runs various programs including: Monday - Friday 9am5pm ET Saturdays 12:30pm7pm ET, Sundays 12pm6pm ET Saturdays 7pm12am ET, Sundays 6pm11pm<br>"60 Second Slam" and "Into the Trivia Pit"; also fill-in for Jose "Corridor of Covers" only On November 12, 2008, the XM lineup underwent a massive overhaul, and XM Liquid Metal ceased operations. Ward Cleaver, Katie Brutal, and Cool