Rigado | Portland, OR | Onsite or Remote | https://www.rigado.com

Senior Backend Engineer - Help us build out the Edge Direct management platform that allows our customers to manage fleets of IoT devices in the field. Heavy AWS (Dynamo, AWS IoT, Lambda)

https://www.rigado.com/careers/

Rigado | Portland, OR | ONSITE | https://www.rigado.com/careers/

Rigado builds hardware and software to collect BLE sensor data and push it to cloud.

We are looking for a senior backend engineer to help drive the system that connects, monitors and manages our fleet of devices on customer networks.

Rigado | Senior Backend Engineer | Portland, OR | ONSITE https://www.rigado.com/company/careers/

We’re looking for a senior backend software engineer to join our team at Rigado and help us build the future of IoT device management software. We’re a small but passionate team dedicated to shipping great software.

https://www.rigado.com/products/iot-gateways/

https://www.rigado.com/deviceops-platform/

"One of their functions, which Wall Streeters call arbitrage, was to try to buy power at a low price in one place and sell it at a higher price somewhere else."

http://articles.latimes.com/2002/may/09/business/fi-scheme9

Worked great for Enron.

Also, China's energy is cheap because 75% of their grid is powered by burning coal. He doesn't mention climate change at all in this article.

> Also, China's energy is cheap because 75% of their grid is powered by burning coal.

What? Most Bitcoin in China is mined using cheap excess hydro power, using coal power would most likely be uneconomical.

I keep hearing this notion repeated, but I've never seen a citation.

Do you have any evidence that:

a) Most bitcoin in China is mined using hydroelectric power.

b) That the generation capacity in question is "excess" (i.e. it would not have been put to productive use except for bitcoin mining)

It's also worth noting that damming rivers for hydroelectric power is enormously damaging to the surrounding ecosystem, even if they aren't carbon-emitting: https://en.wikipedia.org/wiki/Environmental_impact_of_reserv...

Fully agree. Following suggest coal is still the main source of energy for Chinese miners.

https://qz.com/1055126/photos-china-has-one-of-worlds-larges...

https://www.bloomberg.com/news/articles/2017-12-15/turning-c...

China's bitcoin mining firms essentially get state-subsidized power by giving kickbacks to local officials for below-market rates.

Rigado | Senior Backend Engineer | Portland, OR | ONSITE https://www.rigado.com/company/careers/

We’re looking for a senior backend software engineer to join our team at Rigado and help us build the future of IoT device management software. We’re a small but passionate team dedicated to shipping about shipping great software.

https://www.rigado.com/deviceops-platform/

Good call. I was aware of that but should call it out in the post. Thanks!

It was just a fun toy app that I whipped up. Didn't mean to offend anyone with my "hot tech". :-)

Though I think GP is being a bit of an idiot, I read your source and I was a little surprised. The app only consists of static files, yet you run every request through a rack app that does nothing but send the static files (except for the indexing of the face files, which could've been done ahead of time too).

Why?

The idea was that the image URL could just be a number between 0 and 100 and the app would handle translating that to 1 of 5 possible images.

If I just served a file for every possible number, the browser would have to potentially download 20x the data.

That way the browser can download and cache 5 possible images rather than 100 and the user just has to think in terms of 0-100.

>and the user just has to think in terms of 0-100

This is the part I'm not understanding. Why would the user want to think in terms of 0-100? What benefit is there to that? One way or another, you're going to be doing Math.floor(val*N/maxVal). What difference does it make if N=5 or N=100?

The only advantage I can see is that setting N higher means that you can later add more steps without breaking backwards compatibility. But this is one case where that definitely won't happen, since the steps are a historical reference.

Here is a clip from that talk where he mentions IBM contacting him. Pretty funny. http://www.youtube.com/watch?v=-hCimLnIsDA

An hour long video by Douglas Crockford where he explains about the licence somewhere after 40-45 minutes i think. http://www.infoq.com/presentations/Heretical-Open-Source

Everyone is battling over why corporations or Apple specifically doesn't like GPLv3, and noone has mentioned Linus has said he doesn't like GPLv3 either and will stick with v2 for Linux.

Linux is still shipping under GPLv2.

http://git.kernel.org/?p=linux/kernel/git/stable/linux-stabl...