Tue 28 Jan, 2020 12:45 pm - As far as I know, gravity waves travel at the same speed as light, so I don't think there is any way for us to know if Betelgeuse goes supernova before we actually see the light from it.... (view)
Tue 28 Jan, 2020 12:42 pm - Our Sun is a second generation star (at least). We can tell this from its composition.
Stars in general can be categorized by the "metallicity" which give us an indication of what... (view)
Tue 28 Jan, 2020 12:33 pm - It sounds like you are speculating about a combat scenario between the mammals of N. America and the "Dinosaurs" of S. America, suddenly clashing with each other in Panama and wondering... (view)
Wed 22 Jan, 2020 06:27 am - Individual perceptions of reality are not necessarily representative of the collective perception of reality from millions/billions of people interacting with the same physical environment. The... (view)
Wed 22 Jan, 2020 06:02 am - I remember one from the 1960's in which Planarian worms (flatworms) that had been trained to navigate a maze were subsequently "chopped up" and fed to other planarian worms, which... (view)