381 reputation
312
bio website arrayboundserror.blogspot.com
location West, MS
age
visits member for 4 years, 3 months
seen Feb 18 at 5:57

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


Feb
17
revised Would a directional “graviton” emitter violate any known laws of physics?
added 192 characters in body
Feb
17
comment Would a directional “graviton” emitter violate any known laws of physics?
@dmckee I didn't think gravitational waves (or at least any kind we know how to make) were any more directional than a simple dipole antenna would be. (See edit)
Feb
17
comment Would a directional “graviton” emitter violate any known laws of physics?
@dmckee Why would it inherently be any more complicated than, for example, a Yagi-antenna? What would require a graviton to be harder to manipulate than a photon? -- Besides, I'm specifically ignoring the practicality to look at the practicability and the implications of it being even possible.
Feb
17
asked Would a directional “graviton” emitter violate any known laws of physics?
Sep
24
awarded  Autobiographer
Apr
4
awarded  Notable Question
Mar
4
awarded  Popular Question
Jan
21
awarded  Good Question
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
accepted Does Gödel preclude a workable ToE?
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
answered Best EM/Photon rocket using avalable tech?
Jun
15
comment Best EM/Photon rocket using avalable tech?
I'm thinking space (so a box fan is out).
Jun
14
revised Best EM/Photon rocket using avalable tech?
added 6 characters in body
Jun
14
asked Best EM/Photon rocket using avalable tech?
Aug
16
revised What is the diameter of the sun as a function of wavelength/frequency (around 10GHz)?
edited title