could 80 year old ether experiments have detected a cosmological temperature gradient? /

(Phys.org)—In a modern study,scientists have proposed that tiny residual effects measured by ether-drift experiments in the 1920s and '30s may be the first evidence of a temperature gradient that was theorized in the 1970s, but never before detected in a laboratory. The theorized temperature gradient is thought to be caused by the solar system moving at 370 km/sec through the cosmic background radiation (CBR), and which is the faint electromagnetic radiation that fills the universe.

Source: phys.org