Extremetech: Temperature is typically thought of as the average energy of individual atoms or molecules within a given collection. For atoms of similar mass, this “kinetic temperature” would basically be their speed at equilibrium. For a group of molecules, we have just a little extra accounting to do. Their total energy is also partitioned into the relative motions of their constituent atoms oscillating about their bonds, typically either bending or translating motions.
The supermassive black hole is 40 million times as massive as the sun and powers a quasar that existed 700 million years after the Big Bang.
Vision Pro is here and it’s a surprisingly capable device. Apple has also loaded the headset with a ton of options and features that aren’t obvious at first glance.
Engineers expect to lose contact with the private US moon lander Odysseus on Tuesday, cutting short the mission after its sideways touchdown last week.
