oscilloscope

It was first published in 2005 according to the URL and comment permalinks.

Doesn't Peercoin behave this way to some degree?

http://en.wikipedia.org/wiki/PPCoin#Money_supply

Dogecoin is about 10 days old. The currency is based on the popular doge meme and will have max 100 billion units. It uses scrypt and has a random block reward.

http://dogecoin.com/

Price history on CoinedUp: http://doge.yottabyte.nu/

Dogecoin has a surprising momentum to it. I'm curious what role it will play once the initial novelty wears off. There are many more Doge than Bitcoin or Litecoin, so a single Doge will never be unattainable. It has a long way to go to even reach parity with the penny.

I also see no article text. Is this only getting voted up by people who didn't click through?

There was a prolonged dip in the price in this weekend, and I was wondering if this had an effect. There've been many large Bitcoin transactions recently, especially on Bitcoin Black Friday. For instance, Amagi Metals apparently sold $900,000 worth of gold and silver for Bitcoin using Bitpay as their processor.

That alone is currently a significant volume to liquidate. Enough to move the price 4-5% on some exchanges. Bitpay only takes a ~1% fee, but I assume their exchange rate is padded to absorb some of that risk. They may also sell bitcoin off the exchanges, which doesn't have a direct impact on the price.

Browsing Satoshi's mailing list and Bitcointalk posts is a good next step.

http://www.mail-archive.com/search?l=cryptography@metzdowd.c...

https://bitcointalk.org/index.php?action=profile;u=3;sa=show...

Total output volume may be a useful metric, since people may have used a Bitcoin transaction to move Bitcoin from one exchange to another. But a large amount of Bitcoin can be sent in a single transaction.

https://blockchain.info/charts/output-volume

Another popular metric, since output volume can be pumped up by sending the same coins over and over gain, is Bitcoin Days Destroyed.

https://blockchain.info/charts/bitcoin-days-destroyed-cumula...

http://bitcoin.stackexchange.com/questions/845/what-are-bitc...

Also transactions on the exchanges don't show up in the blockchain.

That's just on Gox. On BTC China it's touched over $1000 USD in Yuan and on Bitstamp it's only $675. The global average is over $800 already. The USD only average is quite a bit below that.

https://bitcoinaverage.com/#USD

How can a currency have an exchange rate of infinity?

The lack of wallets for iPhone and iPad may be one of Bitcoin's biggest hurdles to mass adoption. Many early adopters use Apple products, but much of Bitcoin's appeal is lost if you can't carry it in your pocket. It's part of what makes Bitcoin cash-like.

Coinbase is already unsatisfying, as far as software wallets go, because you have to register with an email address. Your coins are held in a shared wallet, not on the device. But at least you get the idea of how Bitcoin works on a phone.

On the other hand, Apple didn't explicitly design iOS to be a highly secure environment suitable to store digital money on. A couple months ago, a bug in Android's random number generator was discovered that compromised all key pairs which used it. Android wallets had to issue an update which moved all the bitcoin in each wallet to a new address, generated with the patched RNG. But for a day or two, most Android wallets were vulnerable.

Bitcoin Average and Bitcoin Charts are two sites that provide much more information about the latest price than Coinbase's chart.

Bitcoin Average does a volume-weighted price average across major exchanges.

https://bitcoinaverage.com/#USD

Bitcoin Charts gives you some historical information like the 30-day average for each exchange/currency pair.

http://bitcoincharts.com/markets/

If you want to look at candlesticks to track the latest price action, Bitcoinity tracks multiple exchanges.

http://bitcoinity.org/markets

Here's an interactive Ulam spiral with adjustable parameters.

http://bl.ocks.org/syntagmatic/5070320

Open it fullscreen, lower the size and increase the "max" variable to render more numbers. If you've got a Retina display, the size goes down to 0.5 to take advantage of that. You'll see the long diagonal lines mentioned in the article.

Yes, it was originally proposed in a paper. http://bitcoin.org/bitcoin.pdf

Senator Tom Carper's statement on the launch:

“This new website – launched barely a month after Federal agents shut down the original Silk Road -- underscores the inescapable reality that technology is dynamic and ever-evolving and that government policy needs to adapt accordingly. Rather than play ‘whack-a-mole’ with the latest website, currency, or other method criminals are using in an effort to evade the law, we need to develop thoughtful, nimble and sensible federal policies that protect the public without stifling innovation and economic growth. Our committee intends to have that conversation – among others - at our hearing this month on virtual currency.”

http://www.hsgac.senate.gov/media/majority-media/chairman-ca...

My favorite recent twist of events is that the US government now has the Bitcoin address with the largest balance: DPR's seized coins held by the FBI.

https://blockchain.info/address/1FfmbHfnpaZjKFvyi1okTjJJusN4...

Apple added memory compression in Mavericks, so upgrading to the latest OS may improve your situation. Disclaimer: I don't actually know.

This was included in a set of visualizations built by members of the Bay Area D3.js User Group.

http://enjalot.github.io/bart/ http://www.meetup.com/Bay-Area-d3-User-Group/events/13754175...

The cost of the Iraq War was over $800 billion. Over a ten year period, I would expect the cost of national healthcare to be on the order of ~1 trillion dollars.

$500 million is 0.05% of $1 trillion.

There's a step-by-step guide to creating this kind of animated chart by Jim Vallandingham.

http://vallandingham.me/bubble_charts_in_d3.html

A couple critiques. The "No Breakout" view is almost meaningless. It would be more effective as a ranked list with words. If I take a screenshot of that, it means nothing. Circle positions, sizes, and colors encode no information in this initial view. The only way to get information is to hover, letting you browse the list in a disorganized fashion.

It's not clear on load what colors represent. There are no labels whatsoever. The colors make more sense on the "Country Breakout", but you lose the context again if you go to the "Industry Breakout". The last breakout also seems somewhat arbitrary. According to this, Google is part of "Internet Search". Don't they make hardware and software as well? Is IBM still a hardware company? The lines are fuzzy, but this categorical view draws a sharp divide between different sectors.

The graphic this is based on, Four Ways to Slice Obama's Budget Proposal, contains much more information and labels it well.

http://www.nytimes.com/interactive/2012/02/13/us/politics/20...

Notice that circle area encodes proposed spending, which is a good measure of size/importance. The coloring is also a quantitative metric with an associated scale. When you go to the "Department Totals" view, you can see how the size/coloring reveals insights about proposed Defense spending (heavy cuts).

All you need is the private key to sign a transaction.

The d3.js google group is a good place to discuss intermediate/advanced topics and get some help when you're hopelessly stuck. https://groups.google.com/forum/#!forum/d3-js

This is a very rich and high-quality dataset. I started using it to learn data visualization a few years ago and have been tinkering with it in parallel coordinates ever since.

http://bl.ocks.org/syntagmatic/raw/3150059/

Here's a quick 2d visualization of the data using D3.js. The advantage of a 2d projection is you can see all parts of the globe at once and have quantitative encodings that aren't distorted by projection effects. In this case, color+radius encode the magnitude variable, but there is overlap of adjacent circles.

http://bl.ocks.org/syntagmatic/6769077

Hexagonal Grids (2013)

http://www.redblobgames.com/grids/hexagons/

The development of adult life is stunted. It takes longer to afford to rent an apartment on your own, buy a house, buy a car, get married, start a family, start a business, etc. If you're college educated you probably have a broad support network. So instead of being homeless, you move back in with your parents.

So instead of losing your home, you may never get it in the first place.

The consequences of defaulting on a student loan are also quite severe.

https://studentaid.ed.gov/repay-loans/default#what-are-the

It is backwards compatible with micro usb cables.

You need to put a bit more care into filming to build confidence in the offering. YouTube's auto-stabilization at 1:30 really puts me off. Especially since you're featuring HD video. The screen is washed out and blue-shifted at that point as well.

A few high-quality pictures of the PC in good light would help too. The video features the monitor more than the PC itself.

This is initially stunning yet rich, data-dense, detailed and simple. I would refer to this when travelling in the Netherlands and especially for looking at apartments and real estate.