andars

7 ms·

1.
by andars 8y ago
Borrowing from an a old comment of mine: On one hand, on some scales, Newtonian mechanics is correct "enough" to give results that work, and so in that sense it is just incomplete in that its domain is restricted. On the other, re
2.
by andars 9y ago
"Pony up" must mean something different for me than it does for you. I don't know what it means to OP, in my comment I mistakenly assumed my understanding of the phrase was fairly universal.
3.
by andars 9y ago
Realistically, if the government didn't tax and the benefits were available without payment, how many people would voluntarily pay? Many (most?) will accept a free ride when it is available. The strength of that "unspoken contract
4.
by andars 9y ago
But their software is also free as in beer? It seems strange to make something available without payment and then get mad when people don't pay. I understand the other non-monetary freedoms that the FSF advocates, this is not about tho
5.
by andars 9y ago
Could you clarify what is nonlinear about that system? From your description, it sounds like a high (4+) order (mostly) linear system. The motor probably has nonlinear dynamics, but so does everything and treating it as linear should work o
6.
by andars 9y ago
Sorry, I'm not qualified to give a good answer. I would guess that the relatively long wavelength of ultrasound could potentially cause resolution issues.
7.
by andars 9y ago
I'm not very familiar with the plasma dots approach, but from a cursory look it appears that it is not capable of RGB. On the other hand, there is nothing that can fall out of confinement so the display is probably more stable. That pa
8.
by andars 9y ago
> Can you levitate multiple particles at the same time? Yes, but their device currently is only capable of levitating a single particle. With the current approach, the device would need one laser for confining each particle. The lasers u
9.
by andars 9y ago
The cellulose comes from the black liquor on a spoon (see 0:46 in the video). The put the spoon at the focus of the laser and with luck some particles get confined. After the trap is lost, the particle just sort of drifts away in the air, s
10.
by andars 9y ago
Nonetheless, everybody calls the displays in Star Wars "holograms". Smalley notes this, and the title is using the word in this colloquial sense. There is an unfortunate disconnect between the technical and colloquial meanings of
11.
by andars 9y ago
I've seen this in operation and am acquainted with the researchers. I may be able to attempt to answer some questions about it.
12.
by andars 9y ago
Or he plans on growth in other segments (solar, batteries, ?)
13.
by andars 9y ago
> Tesla rockets Tesla is distinct from SpaceX.
14.
by andars 9y ago
Jobs had a $1 salary and no bonuses. That doesn't say anything about stock options, grants, etc. It sounds like Musk will get minimum wage and no stock anything if Tesla doesn't meet the thresholds.
15.
by andars 9y ago
Tesla, the car company, probably will never come close to the market caps thrown around in the article. Tesla, the energy company, might.
16.
by andars 9y ago
Walk
17.
by andars 9y ago
Other
18.
Poll: How do you commute?
1 points by andars 9y ago|3 comments
19.
by andars 9y ago
Car (solo)
20.
by andars 9y ago
Carpool
21.
by andars 9y ago
Bus
22.
by andars 9y ago
Light rail
23.
by andars 9y ago
Train
24.
by andars 9y ago
Bicycle
25.
by andars 9y ago
Electric bicycle
26.
by andars 9y ago
My understanding: GPUs are (generally) in-order within each thread, but they are pipelined. The pipeline is filled with instructions that are ready to execute from across many threads. If all threads have an unmet dependency (previous instr
27.
by andars 9y ago
The Power Wheels don't put the motors in parallel or series, it switches the two 6V batteries between parallel or series. The motors are always in parallel. See the patent: https://patents.google.com/patent/US463
28.
by andars 9y ago
What kind of electric motors? Brushed DC by chance?
29.
by andars 9y ago
Would you mind sharing your field of study?
30.
by andars 9y ago
It isn't self-tuning, and it doesn't "learn." From the paper: "The three constants c_i need to be set by the implementor" Under "Future Directions": "One obvious thing to do with this system is t

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