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PhysicsRock
replied to the thread
I
Induced orientation on boundary of $\mathbb{H}^n$ in ##\mathbb{R}^n##
.
This is a very helpful insight that I've actually never seen. Unfortunately, I haven't been able to take a proper differential geometry...
3 minutes ago
phinds
reacted to
WWGD's post
in the thread
Collection of Lame Jokes
with
Like
.
8 minutes ago
phinds
reacted to
WWGD's post
in the thread
Collection of Lame Jokes
with
Haha
.
8 minutes ago
davenn
replied to the thread
B
Rock Found in Field Turns Out to Be 4.6GY Old Meteorite
.
This is quite misleading as it wasnt a random find This meteorite was an observed fall so there were many people out looking for...
10 minutes ago
davenn
replied to the thread
B
Rock Found in Field Turns Out to Be 4.6GY Old Meteorite
.
uh huh, I have a couple of bits of that one. Well known for its long green crystals Pyroxene, from memory here's one of them .....
13 minutes ago
davenn
reacted to
Astronuc's post
in the thread
B
Rock Found in Field Turns Out to Be 4.6GY Old Meteorite
with
Love
.
Another, but recent, story on Erg Chech 002 meteorite. https://www.space.com/meteorite-4-billion-years-early-solar-system
17 minutes ago
davenn
replied to the thread
I
Is the Sun's photosphere fluorescent?
.
No, they are darker because they are cooler than the surrounding photosphere, around 1000K cooler so the darker observations is purely a...
19 minutes ago
J
jbergman
replied to the thread
I
Induced orientation on boundary of $\mathbb{H}^n$ in ##\mathbb{R}^n##
.
Yes, you can arrange the wedge product. Differential forms are alternating tensors so ##dx^1 \wedge dx^2 = dx^2 \wedge dx^1##. When you...
23 minutes ago
davenn
reacted to
Drakkith's post
in the thread
I
Is the Sun's photosphere fluorescent?
with
Like
.
While I don't know what exact images you saw, sunspots do not transmit light from underneath them. They are red-orange hot and only...
29 minutes ago
DaveE
reacted to
kuruman's post
in the thread
Direction of electric field vector on the surface of charged conductor
with
Like
.
You are asking about the direction of the electric field and you end up wondering whether it is zero. The direction of the electric...
40 minutes ago
DaveE
reacted to
mathwonk's post
in the thread
Assume that if the real-valued function h(x) is Lipschitz continuous...
with
Like
.
just a comment on: "My instinct says the composition of a discontinuous function with itself (which your notation implies) would be...
53 minutes ago
rcgldr
replied to the thread
What are your favorite Disco "Classics"?
.
Stevie Wonder - Gotta Have You
54 minutes ago
BillTre
reacted to
nsaspook's post
in the thread
News
Weird News Compilation
with
Like
.
56 minutes ago
BillTre
reacted to
Borg's post
in the thread
News
Weird News Compilation
with
Like
.
Just a guess but I'm betting that they won't let him park there anymore.
56 minutes ago
BillTre
reacted to
nsaspook's post
in the thread
News
Weird News Compilation
with
Wow
.
56 minutes ago
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