Phithagoras

9 ms·

31.
by Phithagoras 5y ago
Things to Make and Do in the Fourth Dimension by Matt Parker is a fun, accessible, and fascinating explanation of how math can be a big game. The Annotated Turing by Charles Petzold really is great. It comes up a lot on this website but it
32.
A Tiny Sun: A Review of the Bomb and the Myth of Nuclear Revolution(blog.lrb.co.uk)
6 points by Phithagoras 5y ago|0 comments
33.
by Phithagoras 5y ago
Sadly it's not that simple. Trees alone do not absorb much CO2 past the lifetime of the tree. In the vast majority of the world they die, decompose, and release a lot it again. To store this carbon (and energy) long term the material n
34.
by Phithagoras 5y ago
May I suggest Hematite?
35.
by Phithagoras 5y ago
Has anyone considered that growing up too slow may also be a problem? PG wrote about the existential pain of spending 4 years of suburban high school doing essentially fake things all the time. I haven't heard of any studies looking at
36.
by Phithagoras 5y ago
“All models are wrong, but some are useful” - British statistician George E. P. Box. Any model could simply be made badly, and even well designed models are susceptible to garbage data in giving garbagey results. Lets consider groundwater c
37.
by Phithagoras 5y ago
Fluid mech on the whole has a lot left to solve. https://news.ycombinator.com/item?id=30011260 looks at this a bit. Author confirmed that superradiance, backreaction, and quasi-normal radiance are all observable in the flui
38.
On the analogy between black holes and bathtub vortices(arxiv.org)
13 points by Phithagoras 5y ago|0 comments
39.
by Phithagoras 5y ago
Some might call it the sublime: "fascinated but also a bit unsettled" "existentially insignificant but strangely exalted" “delightful horror” and a “sort of tranquility tinged with terror.” from https://errati
40.
What sonic black holes say about real ones(quantamagazine.org)
47 points by Phithagoras 5y ago|31 comments
41.
by Phithagoras 5y ago
The advantage of a degree in compsci/electrical eng/computer eng/software eng is that really smart people tell you interesting things for 4 years straight. Smart people with a huge amount of subject experience tend to stick
42.
by Phithagoras 5y ago
I have no advice, but this is a very powerful way of looking for solutions. Today I ran into some physics postdocs at the skatepark. They told me about their research doing fluid mech experiments to simulate the behaviour of space near but
43.
by Phithagoras 5y ago
this could be a good blog post to submit
44.
The collapse of 1284 at Beauvais Cathedral [pdf](cultus.hk)
39 points by Phithagoras 5y ago|15 comments
45.
Modern War Institute: We Ignore the Human Domain at Our Own Peril(mwi.usma.edu)
54 points by Phithagoras 5y ago|36 comments
46.
by Phithagoras 5y ago
If you dont want to do a minor/degree you could just go sit in in classes. Many dont take attendance. If you show up at the start of the term nobody will question it. That way you'll be able to talk to people in class and hear the
47.
by Phithagoras 5y ago
Most jobs that are performed outdoors do not involve the level of programming skill that you can provide. Nor would the type of programming likely be that engaging for you (at least on its own). They would also likely require a lot of skill
48.
by Phithagoras 5y ago
Paper factories aside, it can be very field dependent. I knew mathematical physicists who struggled to write more than a few papers a year because they chose to chase closed form solutions for their problems (also already had tenure). I al
49.
by Phithagoras 5y ago
Your services and material goods are orders of magnitude more beneficial in poorer, less educated areas.
50.
Aosta Valley Autonomus Region(en.wikipedia.org)
64 points by Phithagoras 5y ago|35 comments
51.
by Phithagoras 5y ago
why not just download wikipedia from wikipedia? https://en.wikipedia.org/wiki/Wikipedia:Database_download
52.
by Phithagoras 5y ago
I'm a bit surprised the Economist published an article with such weak arguments as a counter. Mr.Li writes: > I would suggest that when it comes to outcomes, China doesn’t score so badly. The country has its problems—inequality, cor
53.
by Phithagoras 5y ago
In a second year class I took the prof posed us the question: why don't we do this today? Why is this not part of an ASTM standard? He ended up saying it's too tough to get a hold of proper pozzlanic ash, but I suspect its more a
54.
Combat on carpet: Afghanistans war rugs(rferl.org)
34 points by Phithagoras 5y ago|1 comments
55.
by Phithagoras 5y ago
Highway 16 and the 43 (2 on the BC side) are still open. They're probably referring to the 16 because the 43 is pretty out of the way. The 1 and 3 is still open on the AB side too, though avalanches were/are causing trouble in Rog
56.
by Phithagoras 5y ago
Agreed. "there are only two sexes" seems excessively imprecise. XXY or XYYYY and several other permutations exist.
57.
White Collar Holler – Stan Rogers(youtube.com)
99 points by Phithagoras 5y ago|39 comments
58.
by Phithagoras 5y ago
I first learned about facebook's misdeeds from Stallman, who has had serious and valid criticisms since at least 2016. He doesn't hold back on many other organizations either. Many groups and individuals have had good reasons to
59.
by Phithagoras 5y ago
If you end up using it lots, making a cool tool, or having some epic disasters it could make a great Show HN or blog post!
60.
Why birds can fly over Mount Everest (2020)(nautil.us)
250 points by Phithagoras 5y ago|108 comments

More ›