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Comment Re:As Molly says, (Score 2) 144

Given the numbers above, the average transaction cost is about $22 at $0.10/kWh. And it's only increasing with time. With costs like that, Bitcoin no longer makes sense for normal, everyday purchases. Why does Bitcoin have this amazing staying power? Why can't another cryptocurrency with cheaper transactions supplant it?

Comment Pixel 1 XL? (Score 1) 291

Does it make sense to buy the Pixel 1 XL 128GB now that it has come down in price? It still comes with the headphone jack and Google's OS updates. The Pixel 2's lack of headphone jack is a no-go for me. The USB-C headphone adapter is too fragile. Hunting for good sounding Bluetooth earbuds is unappealing to me (plus expensive, plus the battery charging and relatively quick failure..).

Comment Re:What genius!! (Score 2) 135

What I wonder is, say you have a 5V ADC. Using their technique, could you drive a 15V (max) signal into the ADC and effectively triple your resolution? You're still using all your bits to measure a 5V range... so if that's the case then it truly is quite groundbreaking.

It may be groundbreaking, but not for the reason advertised in the paper/article/summary. From a quick look at this paper, ADC power dissipation is proportional to f * 2^(2*n), where f is the sampling rate and n is the number of bits per sample. High performance ADCs are constrained by power dissipation, which limits either sampling rate or resolution. What these guys are probably trying to do is constrain n. By allowing signals larger than the ADC input range, and then unwrapping them in software, they increase the effective number of bits. Even if they gain only 2 bits by doing this, this is a factor of 16 advantage in power dissipation (but how does the self-resetting ADC compare to normal ADCs in terms of power?). In any case, the article seems to be hyping a non-existent advantage (sampling signals exceeding the nominal ADC range - why not just attenuate the signal and use a higher resolution ADC?), but does not mention the real advantage (power dissipation).

Comment Re:What genius!! (Score 3, Informative) 135

I'm an EE. This concept is interesting to me, but then I'm left wondering how they really tackle the problem of signal limits. It's not just that ADC that limits the signal. The amplifiers in the chain also do it. Maybe I should just read about it. The whole self-resetting ADC concept just strikes me as odd. I have a feeling it was invented to improve the dynamic range or sampling rate or reduce the power usage of ADCs, but not to magically sample arbitrarily large signals.

Comment Asteroid Redirect Mission (Score 1) 310

The congresscritters also heavily criticized the Asteroid Redirect Mission (ARM):

"This is a misguided mission without a mission, without a launch date, and without ties to exploration goals," concluded Rep. Lamar Smith (R-TX). "It's just a time-wasting distraction."

From the looks of it, this mission will probably not receive funding. It's a bit of a shame. It would have been a good opportunity to start developing asteroid mining technology. Perhaps no one is ready for that yet.

Comment Re:Cap on comment scores (Score 1) 1839

The +5 cap is good, but the "karma bonus" is not great. It basically makes +1 and +2 the same. I know that I can disable the karma bonus, but then many +5 comments will appear as +4, which is not great either. I'd like the ability to quickly spot the top modded comments and also see all comments with just one positive mod on them.

Comment Re:You must be new here (Score 1) 1839

I'd like to add that if any changes are made to the moderation system at all, the ability to make controversial comments visible should be a priority. Just an observation: controversial comments (even if modded into oblivion) tend to generate a lot of replies that themselves are highly modded. So there are two criteria to detect these: the total number of mods (in either direction) and the number (and score) of the replies. To allow users some control over display of such comments, maybe promote them one level: from not shown to abbreviated, or from abbreviated to full.

Comment Re:The author really is paranoid (Score 1) 373

This long article is worth a read to the end. The author acknowledges the possibility that his anecdotes are just the results of coincidences or him networking, like you suggested. The article is actually humorous and designed to make people think about the direction our society is heading. His anecdotes about the visit to the NSA data center, the gun show, the tire shop, the hot springs are all well written. This article is by no means a list of complaints, like you suggest. He makes fun of people that are truly paranoid (seemingly to the point of insanity), while raising some unsettling thoughts as a side-effect.

Comment Re:Kickstarter Needed (Score 1) 240

I've also been eyeing this project, but haven't tried it on any of my machines yet. In the reddit /r/sysadmin thread people seem quite critical of this script. There is credible opinion that these updates will be required for windows to continue updating in the future, so it's dangerous to remove them; and that privacy cannot be achieved anymore while running Microsoft operating systems.

Comment Re:hope there's a "no videos" flag in HTML5's futu (Score 1) 220

Why is this modded +5 Informative? Youtube HTML5 video still autoplays even with this option set to false. Apparently they get around this by loading the video from a script. I basically had to disable HTML5 on Youtube to get it to stop autoplaying. Flash, thankfully, can be blocked until user permission.

Comment Re: Looking more and more likely all the time... (Score 1) 518

Check out "Pathological Science" for some cautionary tales. It's kind of sad how enthusiasm for EM Drive seems to be rising just like for all those past examples, while full scientific rigor has not yet been achieved in the experiments (the experimenters themselves admit this... a sign of progress). I wonder if we will eventually see an experimental satellite propelled by this drive... Part of me thinks that is a waste of money. But another part thinks that all the debate on this topic is an even bigger economic drain through time wasting. So maybe launching an EM drive into space is worth it, just to end this pointless debate.

Submission + - Jupiter destroyed 'super-Earths' in our early solar system (sciencemag.org)

sciencehabit writes: If Jupiter and Saturn hadn’t formed where they did—and at the sizes they did—as the disk of dust and gas around our sun coalesced, then our solar system would be a very different and possibly more hostile place, new research suggests. Computer models reveal that in the solar system’s first 3 million years or so, gravitational interactions with Jupiter, Saturn, and the gas in the protoplanetary disk would have driven super-Earth–sized planets closer to the sun and into increasingly elliptical orbits. In such paths, a cascade of collisions would have blasted any orbs present there into ever smaller bits, which in turn would have been slowed by the interplanetary equivalent of atmospheric drag and eventually plunged into the sun. As Jupiter retreated from its closest approach to the sun, it left behind the mostly rocky remnants that later coalesced into our solar system’s inner planets, including Earth.

Comment Re:We suck as a people (Score 1) 28

But this is not just another exoplanet. It's the Kepler spacecraft being back in business. I think that's news-worthy. By looking at many different patches of sky they will detect many more exoplanets. The only downside is that they won't be able to observe each patch very long, so only short period planets would be discovered. That's still lots of valuable scientific data. The way they precision-point this telescope now is also interesting.

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