Viewing profile — unsung
unsung
HN member- Joined
- Tue, Sep 29, 2015, 10:32 PM UTC
- HN karma
- 30
- Public activity
- 16 items
- HN profile
- View on Hacker News ↗
About unsung
No profile information was provided.
Recent public activity
-
comment
Comment #38812795
I can give a real example. At work we were testing pulse shaping amplifiers for Geiger Muller tubes. They take a pulse in, shape it to get a pulse with a height proportional to the…
-
comment
Comment #37803164
A couple people had some great comments that should get you started; I'd just like to add that you don't need to do everything at once either and your workflow can be flexible. Whe…
-
comment
Comment #37729623
There's a push these days to move towards HALEU fuel in the US; it's basically downblended submarine fuel stock [0]. It'll take about a decade to really start the downblending and …
-
comment
Comment #37682274
Probably, but I would think you'd need to use a paste stencil to raise the PCB contacts evenly above the solder mask layer since it's not quite flush, or just get the board pre-tin…
-
comment
Comment #37357261
The windings in isolation transformers are inductively coupled through the magnetic field in the core. There's often a shield between the two windings to reduce any capacitive coup…
-
comment
Comment #37008969
Krane's Introductory Nuclear Physics is often considered a standard text, and includes a crash course in quantum that might be enough for someone comfortable with linear PDE's. You…
-
comment
Comment #33463011
Have you tried panel mounting the antenna on a big (at least 4 sq ft) ground plane? We use these at work and had a very hard time until we started building nice big ground planes i…
-
comment
Comment #29470276
You can sketch out your board in KiCad [0] and export it as a gerber that you can send to a printing service. CERN uses it now, so it's worth learning, as it'll only improve over t…
-
comment
Comment #29338755
> Nuclear fusion happens spontaneously in nature. True, but you mean fission :)
-
comment
Comment #29196879
> David Friedberg argued on the all in podcast that a 25 square-mile areal of these would be enough to capture all CO2 currently in the atmosphere. I felt like napkin mathing it, a…
-
comment
Comment #29062727
I believe you would be correct on the first point, but have the second backwards. If V' was instead a chunk without the player, then res^V_V' Γ(V,F) = ∅, and the sections of sheave…
-
comment
Comment #29059041
What a fantastic choice of analogy to convey how sheaves attach data to a base space. With so many "Category Theory for Programmers" tutorials floating around, it's refreshing to s…
-
comment
Comment #29055335
On a technical note, the first point is not really true. Using atmospheric models like WRF get you pretty good irradiance forecasts that are roughly proportional to PV output. I (v…
-
comment
Comment #29055048
I would strongly second the GP's recommendation. The book mentioned is aimed at math teachers up to an undergraduate level, but generalizes quite naturally. The idea is that one ma…
-
comment
Comment #20107011
I'm also not sure where the GP is going with this first point. I myself have cloned potatoes with nothing but old Russets and a shovel, and do not consider it nefarious.
-
comment
Comment #18048622
He was talking about some of the limits of just inferring that repeated behavior is induced ad infinitum. He talks about it more. [0] [0] www.personal.kent.edu/~rmuhamma/Philosophy…