jaLissajous
jaLissajous t1_j2fgz7r wrote
Reply to Fun fact: by DfcukinLite
Source?
Also TIL the Chesapeake bay bridge tunnel isn’t part of the interstate system.
jaLissajous t1_j24vr8k wrote
In the cosmological context the current contribution of photons to the energy density of free space is negligible.
However there are entirely theoretical phenomena that occur under extreme radiation-dominated energy densities. Most notable is the Kugelblitz: a black hole formed by concentrating light (or heat) sufficiently dense as to curve spacetime and create an event horizon. This entirely theoretical black hole is one of a class of phenomena proposed by Wheeler in 1955 called "Geons" in his paper of the same title.
A model of these (again theoretical) geons has been extended to a candidate for dark matter called Graviballs. Which is a neat idea, but has no supporting observational evidence that I'm aware of.
jaLissajous t1_irpsi59 wrote
See, this is legitimately an example of Data being Beautiful. Thank you! :D
jaLissajous t1_j4bsg76 wrote
Reply to comment by TheSpektrModule in Best Chicken Parm in the city? by jspivak
No? They have a “Chicken Parmigiana” it’s pretty good.