* Posts by blairhoughton

2 publicly visible posts • joined 26 Jun 2014

Google bags huge Times Square ad space for New Year's

blairhoughton

Re: Don't think you meant that...

If you measure density as "pixels per screen", then maybe...

'Sterile neutrinos' re-ignite 'we found dark-stuff' debate

blairhoughton

Re: Very interesting stuff

It would be more than interesting, it would be a whole new branch of physics wherein we can find ways to detect things that don't interact with anything else using known forces other than, obviously, the gravity we've already detected because it completely overwhelms our measurements of the movements of galaxies and galactic structures.

But that raises a puzzle. The lines they're talking about are absorbtion pits in the electromagnetic spectrum of blackbody radiation coming from the hot object. If these things can only interact by gravity, then there should be only overall doppler shifting, not electromagnetic filtering with a Q high and tight enough to create an absorption line. So this explanation for the line is either incomplete or balls. I'll vote incomplete, because this is the Register, not an actual source of information.