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leot

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hn.mechanism@dfgh.net

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theyseeyourphotos.com 3mo ago

TheySeeYourPhotos

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1pts1
en.wikipedia.org 1y ago

Gödel's Loophole (in the US Constitution)

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4pts0
www.washingtonpost.com 1y ago

Dogs may be able to communicate by pressing buttons, research suggests

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8pts0
patents.google.com 1y ago

Controllable Launcher (Of Human Payloads)

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1pts0
journals.plos.org 1y ago

How do soundboard-trained dogs respond to human button presses?

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2pts1
twitter.com 6y ago

Can anyone explain why Tuesday C19 deaths have been 2x Sunday's?

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1pts2
slackhq.com 6y ago

Why Shared Channels are So Cool

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3pts0
blog.scholarpedia.org 7y ago

Wikifying scholarly canons (2013)

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en.wikipedia.org 7y ago

L'Anse aux Meadows

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sonomotors.com 7y ago

Sono Sion: a solar-powered commercial car

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en.wikipedia.org 7y ago

Cavendish experiment

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en.wikipedia.org 8y ago

Space travel using constant acceleration

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medium.com 8y ago

The Turnaround [of 21.co]

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amp.ft.com 8y ago

Silicon Valley would be wise to follow China’s lead

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2pts0
ftalphaville.ft.com 8y ago

The smartest Bitcoin trade in town?

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2pts2
mobile.nytimes.com 8y ago

Glowing Auras and ‘Black Money’: The Pentagon’s Mysterious U.F.O. Program

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9pts3
ftalphaville.ft.com 8y ago

The smartest Bitcoin trade in town?

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4pts0
medium.com 8y ago

Read 3x faster by not reading at all

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2pts0
medium.com 9y ago

“Dumb Animals”? Yes. “Dumb Tech”? No

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1pts0
clever.pet 9y ago

CleverPet – Your dog can do so much more

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1pts0
medium.com 10y ago

Why we started CleverPet

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1pts0
www.foodsafetynews.com 10y ago

Study: E. Coli Vaccines Are Effective but Economic Incentive Needed (2015)

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1pts0
medium.com 10y ago

Your pet is (probably) bored. Technology may help

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1pts0
en.wikipedia.org 10y ago

Space travel using constant acceleration

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en.wikipedia.org 10y ago

Project GAMMA

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www.kickstarter.com 12y ago

Show HN: CleverPet – A Console that Teaches and Feeds Your Dog All Day

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www.google.com 12y ago

Sending money with Google Wallet

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5pts1
support.google.com 12y ago

Send money within Gmail

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3pts0
www.pen.org 12y ago

Chilling Effects: NSA Surveillance Drives U.S. Writers to Self-Censor

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3pts0
blog.scholarpedia.org 12y ago

Wikifying scholarly canons

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7pts0

Quell (textquell.com)

Broken relationships can be difficult and nerve-wracking. Quell gives you an SMS number that enables you to put boundaries around your communication with someone who is blowing up your phone and making your life hard. Their texts are intelligently filtered so that hostility is removed while information is preserved. All raw texts are also routed to email for record-keeping and rewrite verification.

If I were the CCP this is perhaps the cleverest talking point I could have possibly come up with, propping up TikTok while simultaneously condemning democracy.

But to substantively respond: NO. This is exceptionally naive. Democracy assumes shared fates and aligned incentives among (both voting and communicating) participants. A foreign adversary mainlining their interests into half the population of the US absolutely violates this assumption.

It's unclear why the researchers believe that when a dog doesn't learn the names of a bunch of toys it means that they can't.

There are lots of things people are able to learn today that they "couldn't" a few years ago (programming, math, reading). How are the researchers able to tell that the limitation lies with the dog and not with the trainer/household?

(According to GPT4)

Using the hydrostatic pressure formula:

Pressure = Density of water × Acceleration due to gravity × Depth

Assuming the same density of water (1,000 kg/m³) and acceleration due to gravity (9.8 m/s²):

Pressure = 1,000 kg/m³ × 9.8 m/s² × 4,000 m Pressure = 39,200,000 Pascal (Pa)

Converting to atmospheres:

Pressure in atmospheres = 39,200,000 Pa / 101,325 Pa/atm Pressure in atmospheres ≈ 387 atm

Considering a safety factor of 2, as before, we can calculate the required thickness:

Required thickness = Pressure / (Tensile strength × Safety factor) Required thickness = 387 atm × 101,325 Pa/atm / (434 MPa × 2)

Converting units:

Required thickness ≈ 39,200,000 Pa / (434 × 10^6 Pa × 2) Required thickness ≈ 0.045 meters or 1.48 inches

Therefore, at a depth of 4,000 meters, the titanium walls of the submersible sphere with a 10 ft diameter would need to be approximately 1.48 inches thick to resist implosion, assuming a safety factor of 2. Again, please note that this estimation may vary based on the design, shape, and structural considerations of the submersible sphere. Consulting with experts is essential for accurate calculations and safety assessments.

As for amount of titanium required:

First, let's convert the wall thickness to meters. Since 1 inch is approximately 0.0254 meters, the wall thickness of 1.5 inches would be approximately 0.0381 meters.

Now, let's calculate the internal volume of the sphere by subtracting the volume of the inner sphere (10 ft diameter minus 2 times the wall thickness) from the volume of the outer sphere (10 ft diameter):

Inner radius = Radius of the sphere - Wall thickness Inner radius = 1.524 meters - 0.0381 meters Inner radius = 1.4869 meters

Inner volume = (4/3) * π * (Inner radius)^3 Inner volume ≈ 14.012 cubic meters

Outer volume = (4/3) * π * (1.524 meters)^3 Outer volume ≈ 14.137 cubic meters

Now, we can calculate the volume of the titanium walls by subtracting the inner volume from the outer volume:

Titanium wall volume = Outer volume - Inner volume Titanium wall volume ≈ 14.137 cubic meters - 14.012 cubic meters Titanium wall volume ≈ 0.125 cubic meters

Finally, we can calculate the mass of titanium using the density of titanium (4,506 kg/m³):

Mass of titanium = Titanium wall volume * Density of titanium Mass of titanium ≈ 0.125 cubic meters * 4,506 kg/m³ Mass of titanium ≈ 563.25 kg

Therefore, with a wall thickness of 1.5 inches, the approximate amount of titanium required for the walls of the submersible sphere with a 10 ft diameter would be approximately 563.25 kilograms.

Titanium is currently around $6/kg, so ~$3.4k for just the titanium that made up the wall.

SF is rich and unequal. So are dozens of places. Yet I don't know of any other major urban area in a developed country that has the kind of crime we see here.

Yes, let's create great safety nets. As a city with a $9 billion budget (for just 800,000 people; that's $11k for every person living here) they can afford better safety nets than anywhere.

So if it's not the inequality, and it's not lack of funding, what's the cause of all the crime and homelessness?

Here are a few examples of how dysfunctional SF politics is: [1] Chris Sacca tried to give SF free wifi 15 years ago, and they wouldn't accept it. https://www.reddit.com/r/sanfrancisco/comments/mf1x52/chris_...

[2] During covid, the SF school board decided one of their highest priorities would be to spend 10s of millions to rename their schools https://www.npr.org/2021/04/07/984919925/san-francisco-schoo...

[3] Because they claimed the law disproportionately impacted people of color, SF made all shoplifting of goods valued less than $950 a misdemeanor. https://www.hoover.org/research/why-shoplifting-now-de-facto...

So maybe — just maybe — it's not the insane inequality. It's utterly horrible governance.

If you've been privy at all to the conversations founders etc. have been having for the last 48 hours, I don't think they're going to come away from this feeling like "don't worry". There was never a guarantee that the fed would step in, and there won't be a guarantee going forward. Treasury management will be a thing that all VCs worth their salt will insist on going forward.

No one knows that taxpayers will have to pay anything for any of this. It's possible they'll end up ahead. The assets were/are there to cover depositors. The timing of the asset liquidation/redemption is the problem, and only the "bank of last resort" can help avert contagion from skittish depositors, mass layoffs, and pointless disruption.

As said above: would you prefer to see hundreds or thousands of small companies fail, their employees go on unemployment insurance, etc.?

Feel as though it's worth mentioning here that using LTE Direct (https://www.qualcomm.com/news/onq/2014/11/true-or-false-gett...) every phone could become a node in a long-range mesh network in an emergency. This approach takes advantage of both the strong radios in smartphones and the available node density provided by smartphone ubiquity.

The tech has already been proven—carriers just need to be mandated to add it because there's no business reason to do so.

I don't know why this hasn't come up yet, but watts per bit has fallen precipitously over the last 150 years, which means it's pretty unlikely we'd see any stray radio signals from other planets unless we managed to catch them exactly during their very brief 1-2 century inefficient stage.

And even if we're not in a "dark forest", keeping quiet is generally good social hygiene and tends to correlate with maturity. Which may be a side-effect of #2.

Real estate is one of the few markets where non-experts can make money, where it’s not a hyper-liquid winner-take-all game. Coupled with this is the fact that housing is a necessity and owning a home leads people to invest in their communities more than if they were renting, I think it’s a good thing if Zillow (and OpenDoor, etc.) fail at pushing everyday people out of the business of real estate investing. Here’s hoping we see some regulation—the illiquidity of the home buying market is not a problem that needs to be solved.

to help keep their customers safe

The elimination of a distinction between “safety” and “security” is unhealthy imo, as it leads to a failure to distinguish between unintentional harm caused by nature, and intentional harm caused by other people.

E.g. “safety first” is only intelligible if it doesn’t also prevent you from trusting anyone (which is what would be implied by “security first” as a general priority).

I’m a Canadian who came to the US for grad school in 2005.

The lack of a (British) sense of Duty in the US is one of the most striking differences I noticed when arriving here. I suspect it’s in part a result of the frontier mentality: “I got mine you go get yours”. This went obsolete almost as soon as the West was Won, yet remains as a somewhat pathological vestige.

Selling lets the PE firm be “the bad guys”. ISOC gets to dodge responsibility while retaining nearly all the profits of being culpable.

When will Twitter provide all users with the ability to easily verify their identity?

One of its biggest issues is troll armies — this would quickly vanish if we could filter by whether someone had validated who they were and where they were located.

If Bumble can do it, Twitter can.

The Upton Sinclair quote has seldom been more apt.

Assuming it could be effectively and efficiently administered, replacing all income taxes with a wealth tax (and VAT) would massively simplify the tax code while making it significantly more fair and heavily rewarding those actively generating the greatest returns.

Under such a scenario, the only people significantly negatively impacted would be those who hoard wealth or invest it poorly, and as a consequence are unable to overcome the periodic tax.

As to its fairness: when the wealthiest pool their resources in order to protect their assets’ value, as is the case in e.g. a hedge fund, we see them happily sign up to a 2% yearly levy.

A more elaborate metaphor makes situation more vivid still: imagine the scenario in which America’s wealthiest were to all move to a “Galt’s Island”, except in doing so they left the American security blanket and became entirely responsible for the defense of their assets. In such a scenario, the idea that the merely wealthy would pay the same as the hyperwealthy immediately stops making sense, as it’s the hyperwealthy who are both benefitting most from the security afforded, and the ones who are most responsible for Galt’s Island being so tempting a target.

America is Galt’s Island, except we have seen a systematic shifting of the burdens of its upkeep from those who can most easily afford it to those who can afford it least.

Or maybe extreme, frontier-inspired individualism went obsolete once the West was Won?

I’m all for smart people being paid well to work hard. But there has to be a better model. Perhaps something similar to the massive payouts we see lawyers getting in class action suits, except instead of law firms and defendants we have drug researchers and illnesses.

What does “earned” mean when we are the inheritors of 100s of trillions of years of brutal, ruthless, evolutionary work done by those who came before us?

We are able to at best apply a light touch to the tiller of the massive, complex ship into which we were born that we cannot claim any credit for making. Indeed, no one can.

This doesn’t mean we shouldn’t credit people for making good choices, but the idea that every penny we get we completely deserve is certainly not an established fact. It is at best an opinion, and a poorly justified one at that.