Viewing profile — stevenrace

What are you using for for networking/on board computing? The article mentions 2G is used in China - however here in the US such services are being depricated [1]. [1] https://www.…

The resin has a low Tg (temp at which it turns goopy again) - somewhere around 500*F even for 'aerospace' stuff. Whereas recycling aluminum requires roughly double that temperature…

"The idea for these soft bombs apparently grew out of a training accident in souther California. Military aircraft were dropping chaff - hundres of metallic strips used to confuse …

>Nobody's bothered to try to figure out how to create a small-scale EMP without a nuclear blast Additionally the US DoD has an EMP weapon that comes in guided missile form via Rayt…

To mitigate issues with cold weather, 2nd generation Nissan Leaf battery packs with the 'cold weather package' include a 'battery warmer' between banks. This is controlled via the …

The Mendelmax 3 & Fusematic from Makers Tool Works are built in the USA and sourced from US suppliers. The guy behind it has done more for the RepRap mechanical bits, aside from Jo…

While there isn't a specific section covering endnotes, they are interspersed sparingly as tonal changes in the narrator's voice. This effect is used in other readings of his works…

While that was designed in 1984, the US DoD had successfully tested laser weapons over a decade earlier: 'The first was in 1973 when the USAF shot down a winged drone at their Sand…

The 'Waveglider' [1] by Liquid Robotics employs a variation of this. Tethered to a buoy on the surface, the main underwater vehicle is propelled forward by the wave's upward force …

FWIW the CERT ('US Computer Emergency Readiness Team') report on the 19th [1] delves a bit deeper into the exploit methods. If you search for the MD5 hashes of the code you can fin…

Alternately, there is 'cool-retro-term': https://github.com/Swordfish90/cool-retro-term

In passing he also mentions a Tumblr posting screenshots from scans. This appears to be the page: http://mainframesproject.tumblr.com/

I suspect you'd still need 'supports' added when slicing - as often it's not so much gravity, but movement from the print head that causes things to go awry. As for layer/bed adhes…

Because it's fun. To be fair, 250W on an ebike is 'not fun' or anywhere close to the legal limits in the US (750-1000W). The happy spot seems to be 2500-5000W for most hub driven e…

Fascinating, thanks. At what speed do you replay text->audio (ie realtime, 1.5x,2x,...)? Lastly, if you disregard price is the braille 'refreshable display' a better experience?

Per this comment, I checked out 'DamNation'. It was fascinating, thanks for the recommendation. The number quoted as $9,000/'Snakeriver Sockeye' that made the 800 mile journey upst…

I've been using 'Mu4e' for the past few years and recommend it: http://www.djcbsoftware.nl/code/mu/mu4e.html

Thanks guys. I was familiar with Project Sanguine, but had hoped there were less ambitious public projects I had overlooked (perhaps closer to VLF which operates After reading abou…

I'm really interested in learning more about underwater ULF - can you point to any keywords, papers, or milspec prefixes to read up on? I've explored all the ISM bands - I just wan…

:raises hand for invite: Also your 'HN Profile' lacks contact info...

Is it prone to existing Zigbee attacks ('packet of doom', key extraction, etc)?

So is this basically a TI Chipcon 2500 + Contiki + and a small ARM linux box acting as gateway? Are you just making Zigbee hardware API calls - or custom firmware? Are you a part o…

Neat project. Will there be an API available? Or will I have to get creative with Form POSTs :).

dwm. [1] http://dwm.suckless.org/

Where it could be spun as a 'LEED, zero emissions data center' (a Thorium reactor, perhaps!). As for cooling, the old Cray's used Fluorinert - I suspect 3M would be happy to brew s…