On: 6TB helium-filled hard drives bump capacity, decre...

[robomartin]

Helium is nearly 7 times better at conducting heat than both air and nitrogen [0], lower density [1] and about the same viscosity [2].

[0] http://www.engineeringtoolbox.com/thermal-conductivity-d_429...

[1] http://www.engineeringtoolbox.com/gas-density-d_158.html

[2] http://hyperphysics.phy-astr.gsu.edu/hbase/tables/viscosity....