dandelany

9 ms·

61.
by dandelany 4y ago
“Canceling out” requires knowing the exact phase of the sound hitting your ear, so that you can cancel it by playing a sound 180 degrees out of phase. First problem: Your system needs to be perfectly synced up in time with the known sound b
62.
by dandelany 4y ago
It’s not obvious at all at the quantum scale. Nothing we’ve seen indicates that eg. the timing of the decay of a single particle, or the ability of a single electron to escape an energy well is deterministic, though they are easily predicta
63.
by dandelany 4y ago
I agree, third might be (alcohol-based) hand sanitizer, which has more of a cooling effect than water when it evaporates, could easily be mistaken for tingles if you're already primed and hyperaware from wondering "did i just touc
64.
by dandelany 4y ago
This was true of the first rover (Pathfinder ‘97) but really hasn’t been true of rovers since then. Ingenuity was an exception re: COTS parts since it was experimental. Pathfinder cost <$300M. “Better cheaper faster” became Discovery
65.
by dandelany 4y ago
Maybe if you can get by with entirely COTS parts. Aluminum is much easier to cut, drill, tap and bend.
66.
by dandelany 4y ago
I’ve made some fun projects with Espruino - where you can literally use setTimeout/setInterval and it will even sleep the uC until it hits the the timeout :)
67.
by dandelany 4y ago
OP's last sentence explains exactly why it's frustrating - because cameras are held back by subpar software. Why do you think being able to explain the root cause of this would make it any less so?
68.
by dandelany 4y ago
It's not cooking 101, it's at least cooking 102 or 103. I know you didn't do it intentionally, but when newbies get into a new subject they are often turned off by comments like yours which boil down to "oh noo you can&#
69.
by dandelany 4y ago
From a security point of view, it sure makes for an interesting attack surface
70.
by dandelany 4y ago
This. I always get annoyed when entrepreneurs eg. on Shark Tank say things like “I quit my job, took out two mortgages on my home, maxed out my credit cards and spent my kids’ college fund on the business. And look at us now, we’re making m
71.
by dandelany 4y ago
Oh great. A product that will let me spend my last moments on Earth debugging an IoT device because surely it’s a false posi——-AUGHHH
72.
by dandelany 4y ago
love when that happens :) Thanks!
73.
by dandelany 4y ago
This is an excellent comment that clearly comes from a lot of experience. Can you say any more about why having multiple locks is such a red flag? Is it because you start getting into deadlock/hungry philosophers territory? Are there r
74.
by dandelany 4y ago
The dust is ejected from the comet at relatively low speeds and the particles therefore remain in orbits that are very similar to the comet’s. Lots of objects in similar-but-different orbits quickly diverge such that they spread out along
75.
by dandelany 5y ago
It's not really the same as a loan - you don't pay it back with cash, it's paid for upfront with a chunk of equity (usually). And if the company fails, the investors take a bath & you aren't personally liable for it.
76.
by dandelany 5y ago
What is obsolete is the doctrine of “armored warfare”, the idea that armor is the primary weapon on the battlefield that allows you to break through enemy defenses. In the days of trench warfare, tanks were a “disruptive technology” - an al
77.
by dandelany 5y ago
Seems kinda disingenuous to quote that part without the “however”… “Yet despite the increase in image streaks, the new report notes that ZTF science operations have not been strongly affected. Study co-author Tom Prince, the Ira S. Bowen Pr
78.
by dandelany 5y ago
Yikes. Didn’t know Hogwarts had an engineering school.
79.
by dandelany 5y ago
facepalm You’re not helping.
80.
by dandelany 5y ago
Electric vehicles are really the best option IMO - as long as it’s fully charged in the morning when it’s needed, most drivers won’t care if it charges at 9pm or 3am. I’m less certain about the other things - not many people will eg. put of
81.
by dandelany 5y ago
Yeah Bitcoin is such an interesting exception! I think some ideas are viral enough on their own to go from zero to front-page on HN/reddit/etc. even when posted by an anonymous user - but it's rare to go beyond that, they u
82.
by dandelany 5y ago
I agree completely with criticisms of the journal - clearly their process is flawed in a multitude of ways. But regarding "shopping around for a respected authority to be taken seriously" - I think this is actually an important le
83.
by dandelany 5y ago
How else would you explain why people play the lottery? It's well-known that the expected value of any given ticket is negative (except in rare cases), unless you place some entertainment/fantasy value on playing.
84.
by dandelany 5y ago
A world of perfectly inoffensive, universally appealing art sounds… pretty horrible to me. You’re describing Budweiser and hotel art. Boring. When I go to a modern art museum, I consider it a success if 90% of what I see is forgettable and
85.
by dandelany 5y ago
I appreciate that you seem to actually be seeking the truth, but consider changing your approach in discussions if you want them to be fruitful and interesting instead of self-satisfying. Anyone paying attention to experts knows that none
86.
by dandelany 5y ago
Your point is, if it had a bunch of error (but not too much!) in one particular direction, the lifetime would be even further extended. This is true, and is probably worth a mention in the article as it is an interesting fact of the mission
87.
by dandelany 5y ago
> there should be exact calculated amount of fuel left Nothing is exact :) Ariane upper stage boosts JWST on a certain trajectory +/- some error in all directions, and then detaches. Along the way, they figure out the error and JWST
88.
by dandelany 5y ago
> Meanwhile, does the art restoration world place a premium on using dissimilar materials, that prevent further disintegration while fooling the eye, but are easily distinguished by future scanning techniques? Yes - as I understand it, r
89.
by dandelany 5y ago
As a person who has talked about weather with neighbors... It's not necessarily about being uncomfortable. All small talk has a subtext, and in this case I think it's something like: "Hi neighbor, it's nice to see a fami
90.
by dandelany 5y ago
You know when & where it happened, and have a rough make/model/color of the car and maybe some description of the driver - surely people regularly report crimes based on less than that? I'm not sure why this wouldn't

More ›