361 reputation
312
bio website arrayboundserror.blogspot.com
location West, MS
age
visits member for 3 years, 11 months
seen Sep 25 at 23:27

For me, fun is taking a program, language, whatever and making it do things it's designer never envisioned it doing. It comes in handy when I'm asked to do something a little outside the norm as part of my job.


My day job


Jan
10
comment Best EM/Photon rocket using avalable tech?
the laser beam might be highly collimated but the waste heat (IR) won't be. Besides, it adds a relatively large mass that it has to accelerate (which might be an issue is your power supply has a high enough specific power).
Nov
27
comment Does Gödel preclude a workable ToE?
See user34445's answer: the 'supersystem' is math and logic.
Nov
26
comment Does Gödel preclude a workable ToE?
tl;dr; A ToE can exists under Gödel and still 'describe' everything physical but e.g. will not be able to 'describe' things intellectual.
Aug
29
comment Best EM/Photon rocket using avalable tech?
I guess the question devolves to a balance between mass of the device and how well it collimates the radiation. I suspect that a dish would have to be VERY deep to do a lot better than a hot plate and will be a lot more complex.
Aug
29
comment Best EM/Photon rocket using avalable tech?
@BenCrowell countering that sort of things (or more accurately torques caused by them) is the application that got me thinking about this.
Jul
15
comment Best EM/Photon rocket using avalable tech?
I could see how that would work is it was an AC power source, but it raises the question of how efficient it is. I'd expect this becomes a "directional antenna" problem: i.e. the more directional an antenna you build the more efficient a thruster it becomes. The question then becomes is it easier to make an X Watt EM radiator highly directional in the RF band or the IR band?
Jun
15
comment Best EM/Photon rocket using avalable tech?
I'm thinking space (so a box fan is out).
Aug
15
comment What is the diameter of the sun as a function of wavelength/frequency (around 10GHz)?
What are the bounds on the validity of that model? Does that still apply in the RF ranges? IIRC absorption at optical wavelengths is an interaction with single electrons whereas with RF wavelengths it's dealing with conduction inside conductive materials.
Nov
3
comment What is the minimum wavelength of electromangetic radiation?
@HelderVelez, good point: Close only counts in Horseshoes, Hand Grenades, and Tactical Nuclear Weapons. (OTOH that last one has an interesting relevance here.)
Nov
1
comment What is the minimum wavelength of electromangetic radiation?
I specifically left unspecified how the photon is generated and even what matter source is used to power the experiment. The only things I specified is the total amount of energy dumped into it.
Nov
1
comment What is the minimum wavelength of electromangetic radiation?
@Georg, the question isn't about creating the photon. OTOH, it's interesting to consider how you could do that (or how you could pump an exiting photon to that high an energy level).
Nov
1
comment What is the minimum wavelength of electromangetic radiation?
Note that with regards to point 1, The energy density I'm referring to is not that cause by relativistic speeds (if a photon had such, it would be infinitely heavy) but rather just the energy of the photon it's self. For example, what would happen if a single photon was emitted using the total matter/energy conversion of an entire super massive black hole (or an equivalent mass)?
Sep
26
comment Does Gödel preclude a workable ToE?
I think we are agreeing to some extent. see my answer (primarily the first section) to this question.
Dec
8
comment Isotope properties plotting tool?
I chose to post it here because primarily the question is about the data set and secondarily about the tooling.
Dec
8
comment Isotope properties plotting tool?
What I was hoping to do was plot N vs λ. The spesific problem I'm interested in is what's with the bite mark in this chart at N~=130?: en.wikipedia.org/wiki/File:Isotopes_and_half-life.svg