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jonbruner

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www.lumafield.com 10mo ago

CT scans of 1k lithium-ion batteries show quality risks in inexpensive cells

jonbruner
287pts124
www.lumafield.com 1y ago

How a car cigarette lighter works, in CT scans

jonbruner
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www.lumafield.com 3y ago

CT scan shows there's still lots of toner left in an “empty” cartridge

jonbruner
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www.lumafield.com 3y ago

AirPods Pro (2nd Gen) teardown: the lanyard eyelet is more than it appears

jonbruner
14pts1
www.oreilly.com 9y ago

Interactive tutorial: generative adversarial networks (GANs) for beginners

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github.com 9y ago

Random sample of 400,000 Twitter accounts, with metadata

jonbruner
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www.oreilly.com 9y ago

We may someday talk about “discovering a design” instead of “creating a design”

jonbruner
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jebruner.com 10y ago

Borders on Google and Bing Maps change depending on location of your IP address

jonbruner
9pts1
jebruner.com 10y ago

California's reservoirs refill, but not for long (time-lapse animation)

jonbruner
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www.oreilly.com 10y ago

Cory Doctorow on the W3C's effort to make DRM part of the core HTML spec

jonbruner
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jebruner.com 10y ago

The late-reply apologies of the founding fathers

jonbruner
3pts0
www.oreilly.com 10y ago

Early Nest investor Rob Coneybeer: VR and robotics are next big opportunities

jonbruner
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radar.oreilly.com 10y ago

Yancey Strickler on Kickstarter's conversion to public benefit corp [podcast]

jonbruner
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radar.oreilly.com 10y ago

The story behind reference peanut butter and connected hardware for disconnecting

jonbruner
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radar.oreilly.com 10y ago

Quentin Hardy from the NYT talks about Facebook's Aquila drone project

jonbruner
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Scan time depends on material composition in the object you're scanning and your requirements for resolution. You can scan a dense steel object overnight to capture micron-level detail, or you can scan a plastic object in a few seconds to search for a known issue like a crack.

Battery scans are very fast; the scans in the report took less than a second. Total cycle time on a Triton CT scanner is under 5 seconds when you account for part handling.

Ha! I'm with Lumafield--we've actually done the same thing, scanning bags of Doritos, Cheetos, and Ruffles: https://www.lumafield.com/article/bite-into-doritos-ruffles-...

To answer the question about whether these are cleaned up, these scans aren't processed beyond what our software does automatically during the reconstruction. Industrial CT scanners are designed to scan a wider range of material densities than medical scanners. We use some copper filtration to scan parts with lots of dense materials, but no extra processing is required once we've reconstructed the model.

In 2013 I wrote an article called "Tweets Loud and Quiet" (https://www.oreilly.com/ideas/tweets-loud-and-quiet) based on a surprising realization: the median Twitter account has one follower, and the median active account has 61 followers.

In order to write the article, I compiled metadata from a random sample of roughly 400,000 Twitter accounts. The entire sample is now available in this GitHub repo.

Although it's almost four years old now, I get requests for access to the dataset on an almost weekly basis. It's no longer a contemporary snapshot of Twitter usage patterns, but it supports interesting research on social dynamics.

There's a stripped-down, e-ink word processor similar to what you're describing called Freewrite (https://getfreewrite.com/). It launched on Kickstarter as Hemingwrite a couple of years ago. It's got an e-ink display and syncs documents over WiFi.

I think the real selling point is a distraction-free venue for writing, but the e-ink display could be a plus as well.