11–20 of 40 posts
I love that this is still a topic-- along with 'is glass a fluid', this is one of the few questions I recall from childhood that turns out to still be relevant serious physics. (Re 'is glass a fluid', my condensed matter professor said something like 'if it is, it flows too slowly to observe significant movement in the lifetime of the universe'.)
I love that this is still a topic-- along with 'is glass a fluid', this is one of the few questions I recall from childhood that turns out to still be relevant serious physics. (Re 'is glass a fluid', my condensed matter professor said something like 'if it is, it flows too slowly to observe significant movement in the lifetime of the universe'.)
Why does a mirror reverse left and right, but not up and down? and does it have something to do with us having two eyes?
I love that this is still a topic-- along with 'is glass a fluid', this is one of the few questions I recall from childhood that turns out to still be relevant serious physics. (Re 'is glass a fluid', my condensed matter professor said something like 'if it is, it flows too slowly to observe significant movement in the lifetime of the universe'.)
Why does a mirror reverse left and right, but not up and down? and does it have something to do with us having two eyes?
I love that this is still a topic-- along with 'is glass a fluid', this is one of the few questions I recall from childhood that turns out to still be relevant serious physics. (Re 'is glass a fluid', my condensed matter professor said something like 'if it is, it flows too slowly to observe significant movement in the lifetime of the universe'.)
Why does a mirror reverse left and right, but not up and down? and does it have something to do with us having two eyes?
I love that this is still a topic-- along with 'is glass a fluid', this is one of the few questions I recall from childhood that turns out to still be relevant serious physics. (Re 'is glass a fluid', my condensed matter professor said something like 'if it is, it flows too slowly to observe significant movement in the lifetime of the universe'.)
Why does a mirror reverse left and right, but not up and down? and does it have something to do with us having two eyes?
The theory which most fascinates me is that it's not a planet at all, but a primordial black hole with a diameter of ~5cm.
I'm not really sure how it's debatable, either their evidence was correct or not. Surely a respectable third person can look and tell us? The mathematics has been out for 6 weeks.
> “It is important to note that our work does not explicitly rule out Planet X/Planet 9"
I find this annoying. If it disproves their evidence, which I assume was the only known evidence for a 9th planet, then it does.
Add to this "Planet X" is tied to the original article, so if this kills all their evidence they also lose naming rights.
It's called Pluto and it's a planet - Jerry
I love that this is still a topic-- along with 'is glass a fluid', this is one of the few questions I recall from childhood that turns out to still be relevant serious physics. (Re 'is glass a fluid', my condensed matter professor said something like 'if it is, it flows too slowly to observe significant movement in the lifetime of the universe'.)
Why does a mirror reverse left and right, but not up and down? and does it have something to do with us having two eyes?
As you can see, the mirror is reversing up and down, not left and right.