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Charlie Brumbaugh
Charlie Brumbaugh
00:39
@ab2 maybe we should all go back to cubits
ab2
ab2
01:01
@Charlie Brumbaugh Just let's not use 45's arms, fingers, attention span, and mass as units.
 
4 hours later…
anderas
anderas
05:07
Morning all
Nice discovery: climbing chalk is great to stop seam-sealed surfaces from sticking to other such surfaces :)
 
2 hours later…
Liam
Liam
07:44
@anderas What's does "seam-sealed" mean?
Morning all
Liam
Liam
08:06
I was I had the slightest idea what this guy was on about
1
Q: Circular velocity in axisymmetrici potential

user1991If a matter distribution is spherically symmetric, the circular velocity is straightforwardly related to the mass via: $v_{circ} = \sqrt{GM/r}$ In an axisymmetric potential, on the other hand hand, we have $v_{circ}(R) = \sqrt{R\frac{d\Phi}{dR}}\neq \sqrt{GM/r}$ with $\Phi$ the gravitational ...

rotation dark-matter mass velocity
Rory Alsop
Rory Alsop
08:25
@Liam you know your waterproof jacket. Where the edges are sewn, they also need to be sealed so water doesn't leak in the stitching - so a rubberised sealant is used
to seal the seams
also "morning"
> astronomy.stackexchange.com/questions/23219/…
hahahahahaha
> I've essentially up voted this because it sounds impressive
Liam
Liam
@RoryAlsop ah cool, thanks
 
3 hours later…
anderas
anderas
11:55
@Liam correct. In my case, a light jacket started leaking at the seams, so I sealed them again with that kind of glue (in addition to fixing two teared spots)
And that rubbery glue stays sticky, so if you push two glued surfaces together, they will stick together even after a few days

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