Does a (phone|laptop) charger plugged in the socket but not connected to the device still consume electricity? And if so, how much? Less, same or more than if it was actually charging something?...
if something happened to the black hole at the center of our galaxy, could we know about that problem before it affected us? We know that light and even gravitational waves propagate at the speed of light....
Does a (phone|laptop) charger plugged in the socket but not connected to the device still consume electricity?
And if so, how much? Less, same or more than if it was actually charging something?...
if something happened to the black hole at the center of our galaxy, could we know about that problem before it affected us?
We know that light and even gravitational waves propagate at the speed of light....