[awsnmpou] Angular diameters of 2 supermassive black holes

Previously: Schwarzschild radius formula, noting that event horizon radius is proportional to mass.Sagittarius A* at th

[yxwvnpkz] If the sun were to disappear, we'd all die violently

What would happen to the Earth's orbital motion if the sun were to instantaneously disappear?  This is easy to ans

[krqicatp] Here be dragons in physics

Draw some diagrams of objects in physics, marking some areas "Here be dragons", signifying the unknown.Some region very

[uhfhhuih] btrfs first partition

If you put /boot in a btrfs filesystem, perhaps in its own partition or in a partition with the rest of the root filesy

[rvmpycoz] Using NetworkManager with netplan

Ubuntu server and mini.iso (17.10) has switched to netplan for configuring network.  To go back to using NetworkMa