oscilloscope

Litecoin also activated the segregated witness in the past week.

There often is a run on the exchanges, with people desperately trying to withdraw cash or cryptos before the exchange collapses. Often that's what pushes the price to the very top. On one or two exchanges there is a liquidity crisis, so people will bid up Bitcoin because that can be the fastest way to get money off the exchange.

Patient satisfaction is positively correlated with mortality. It does not necessarily indicate superior care. https://www.ucdmc.ucdavis.edu/publish/news/newsroom/6223

From Nov 7-9 it does not.

Source: http://www.nytco.com/the-new-york-times-to-offer-open-access...

Why do you expect anyone would pay for this article, when the NYT website is currently free with unlimited access?

Feedback loops aren't that abstract. There are many examples in the physical world, especially in the brain.

https://en.wikipedia.org/wiki/Feedback#Applications

D3 Version 4 has more utilities and examples of interactions with Canvas. Here's an example of a relatively small graph (~500 nodes, 10k edges) that SVG used to struggle with, but Canvas renders with ease.

http://bl.ocks.org/syntagmatic/954b31aa8b8beb91b30ccb0c9e57f...

Notice the nodes are draggable, an interaction supported by the new simulation.find https://github.com/d3/d3-force/#simulation_find

It's a combination of wide-angle focal length and small sensor size. It is still possible to get a natural depth of field effect by getting very close to the subject, and that effect should be more pronounced with the 56mm equivalent telephoto lens.

Had to save+reset after bumping this up to 100000, but it only took a few seconds and now I have 6 million watts. Dropping my first Tater Tower. Beautiful, elegant cheat.

"Sparked by his lost love of insects, [Satoshi Tajiri] wanted to reawaken an awareness of nature in urbanized youth. Gameboy seemed the perfect medium. The communication aspect of Game Boy profoundly touched Mr. Tajiri and the fact that it had a communication cable lead him to realize that actual living organisms could move back and forth across the cable. At that time, the cable was only used for players to compete against one another, but he wanted to design a game that also involved interactive communication. He envisioned the competitive aspect of Pokemon as being ritualistic and respectful, like two Karate champions or sumo wrestlers."

Here are a couple games you and your daughter might enjoy:

FEZ - also a puzzle-platformer, featured with Braid and Super Meat Boy in Indie Game: The Movie

Portal/Portal 2 - a first-person platform/puzzler with a sci-fi atmosphere

The Long Dark - a single-player adventure/survival game that takes place in the Canadian wilderness. Not a puzzler, but has a painterly art style like Braid and a sense of discovery exploring new locations.

Terraria/Minecraft - these games are already immensely popular among kids. Mining/crafting adventure games in 2-d and 3-d, respectively. There is a creative component in building forts/bases.

FTL: Faster than Light - a spaceship rogue-like game. Too complex for a young child, but fun gameplay if you're into Star Trek/Battlestar Galactica sci-fi themes.

Kerbal Space Program - THE game to learn rocket science and orbital mechanics [1]. Fun, engaging, and tremendously educational. If you've ever dreamed of orbiting the planet or landing on the moon, this is an incredible game. I recommend starting with Science or Career mode, because Sandbox is just overwhelming with the number of parts available. You will probably need to design the rockets at first, but your child can be involved with launching/staging (just requires pressing space bar at the right time).

[1] https://xkcd.com/1356/

I'm going to go out on a limb and guess you've never brewed fine wine out of plump helmets, never carved the history of your race into the stone wall of the great hall, never scrambled after the goblin attack to remove decaying bodies of slain brethren as the last survivor goes mad with grief and purple miasma fills the mine.

I've seen pie charts used particularly effectively in two areas of personal finance:

1) In budgeting apps, to show the distribution of monthly expenses across categories.

2) In investment tutorials and reports, to show a distribution across asset classes.

In the case of budgeting, it's true that a pie doesn't capture all variables, like total expense from month to month. But if you're trying to optimize a metric, such as savings (which can be included as an expense category to visualize savings rate), it makes it intuitive to see which budget categories are throwing you off. Suddenly it's not about reducing expenses, but rather shifting them between categories of a whole. At 50%, there is a tipping point where the pie slice becomes concave. If you're trying to push yourself to a 50% savings rate, it's an interesting visual benchmark.

For portfolios, here are a few examples. These are 3d pie charts, perhaps the most-mocked visualization type of all. But they communicate the information effectively enough. Repeated pie charts emphasize to the reader the importance of asset allocation.

https://www.bogleheads.org/wiki/Lazy_portfolios

What makes pie charts effective is that they are simple and approachable. There are better graphs for showing a portfolio's size and allocation over time-- but not for initially communicating the idea of asset allocation and giving a few examples. Bogleheads is one of the best resources on passive index investing, and I think it's not an oversight how often pie charts show up on the wiki.

If anything, I would say visualizing a portfolio as a line chart can be more deceptive. This is a common technique used to sell mutual funds that have recently outperformed to naive investors. Line charts can implicitly promise a future trend which may not materialize.

The formula implies constant wage, not wage growth. But it can model growth in savings. An example: I save $200 per week. I have $800 saved already. How much will I have saved in 3 weeks?

Floraform is another tool for exploring differential growth http://n-e-r-v-o-u-s.com/blog/?p=6721

Feels comparable to SlickGrid's 500k rows example http://mleibman.github.io/SlickGrid/examples/example-optimiz...

Several hundred of the examples on http://bl.ocks.org/mbostock

Cognitive dissonance puts viewers in tension. Laughter resolves that tension.

That sounds like it covers all necessary expenses and taxes, which means there's $40k of discretionary income. A savings rate of 40% is excellent, especially if you can invest it for 10-20 years.

Diversification is considered to be one of the only "free lunches" in finance. It can both increase your return and decrease your risk, with almost no downside.

For example, going from 100% bonds to 80% bonds and 20% stocks will significantly increase a portfolio's expected return with reduced risk. Another example is owning the Total Stock market (small and mid-caps included) rather than just the S&P 500.

http://bucks.blogs.nytimes.com/2011/09/06/why-and-how-divers...

Investing 90% of a portfolio in a large-cap US index fund and 10% in short-term treasuries is not considered a "conservative" asset allocation. It's missing a lot of low-hanging fruit in terms of portfolio diversification. For example:

The suggested portfolio isn't diversified with an International stock market fund. The S&P fund isn't exposed to small-cap and mid-caps, like Vanguard's Total Stock fund. The bond component is small and has no exposure to intermediate/long-term bonds or corporate bonds.

A more conservative portfolio would be, for example:

  60% Total US Stock Market
  20% Total US Bond Market
  20% Total International Stock Market

http://www.bogleheads.org/wiki/Three-fund_portfolio

Edit: I'm not saying that Buffett's suggested portfolio wouldn't outperform a conservative three-fund portfolio. Just that his 90/10 portfolio is very aggressive with a large-cap tilt.

I disagree that this is a better label. For a consumer, some violations of Net Neutrality might actually reduce monthly charges and increase their available bandwidth.

For example, let's say T-Mobile's Music Freedom program (which uses packet inspection to whitelist Spotify, Pandora, and a few others so they don't count in data metering) expands to also encompass popular video streaming services: Netflix, YouTube, Vimeo, Hulu, etc.

Now a consumer could pay T-Mobile for an inexpensive plan, say $20 for 1 GB of data on a mobile device. They stream high-definition video and music every night, maybe using 40 GB of data this month. But they only pay for 1 GB, which is still available to them for email and general internet browsing.

No extra penalties, no extra fees.

That's a great deal for the consumer, since the majority of their bandwidth use is probably streaming media from these services. The free streaming is a value-add which encourages users to pay for streaming services, but it doesn't count against the advertised data they pay for.

This clearly discriminates different kinds of traffic and provides preferential treatment to certain services. But it doesn't cause general internet services to be slower. Storing the media in hard drives near cell towers may cause the preferred media to be faster.

My understanding is that most flagship camera sensors are made by Sony, so there may be less diversity of hardware than there appears to be.

They're pretty easy environments to make at home. The key ingredients are dry ice and alcohol. https://en.wikipedia.org/wiki/Cloud_chamber

It's an interesting environmental variable to track, especially if you get migraines or have mood swings. If it turns out increased pressure is correlated to your headaches, you can take extra precautions to avoid other triggers.

That's Satoshi Dice, one of the first popular Bitcoin gambling games. It's very similar but differs from Just-Dice in at least three ways:

1) The house edge is 1.9% rather than 1%

2) Every bet is a transaction on Bitcoin's blockchain. So the rapid-fire style betting of Just-Dice is not possible as each bet needs to be verified.

3) The investment model was through shares that paid dividends. On months the site ran at a loss, a dividend was not paid.

The anonymous Dooglus ran statistical analysis of Satoshi Dice for almost a year on the Bitcoin forums (to verify its odds were honest), then started Just-Dice as an experiment in a different investment model.

Dooglus lived in Canada and closed the site due to a new virtual currency law there several months ago. He also ran the site Doge-Dice. He left the two sites running just so investors and gamblers could withdraw all their deposits, but new deposits and bets could not be made (almost the exact opposite of what happened at MtGox when it shut down).

An interesting experiment in gambling addiction was the Bitcoin betting site Just-Dice. There were two ways to participate:

1) Choose your bet size and chance to win. The house always had a 1% edge, reflected in the payout. This edge is much lower than slot machines in Vegas.

2) Invest in the house. Every bet affected your bankroll based on your % invested relative to the total bankroll. The house edge was on your side.

The operators of the site, Deb and Doog, encouraged anyone trying to make money to invest. They argued the expected value was positive, even though high-rollers sometimes went on winning streaks.

Despite the warnings/statistics Doog produced and the fact that there was a +EV way to play (investing), players still got addicted to the dice game itself. The rolls resolved in a fraction of a second, so some players would go on a tear and bet 3-4 times a second. The minimum payout was 1% of the house bankroll, so single bets of several hundred bitcoin were possible.

Several high-rollers ("whales") played for 14-16 hours straight in a state of intense "flow", generally winning early on and losing everything by the end. Sometimes hundreds of thousands of dollars of bitcoin (1000+ btc) lost in a single session. Sometimes coins would come out of cold storage to continue playing. The site had a chatroom where even investors encouraged the player to stop before they were ruined, but the players would generally deny addiction and continue rolling.

After losing it all, some players described the experience they were having as a chemical rush- as if they had just taken a drug.

Even users who were invested and had made sizable profits from investing were not immune to the lure of the game. Several withdrew their invested bankroll just to "play around" and fell in the same inevitable fashion.

This graphical schedule visualization is often called Marey's Trains.

https://mbostock.github.io/protovis/ex/caltrain.html

Another project that uses Marey's Trains is an interactive exploration of the MBTA system.

http://mbtaviz.github.io/

Here's a technique for adding hover/click events to a canvas map. Use a second hidden canvas which has a unique rgb color for each of the regions. Invert the x/y mouse position to lat/lon, lookup the color in the hidden canvas, then lookup the region using that color.

You can make the hidden canvas 2x larger than the visible canvas to get good precision on the borders of regions. It's admittedly hacky, but has good performance characteristics since it only uses two canvas elements.

http://bl.ocks.org/syntagmatic/6645345 (hover only activates on mousemove, so the selected region can slide off the cursor)