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nmz787_ | .tell chris_99 nice progress! looks like I definitely see either digitization noise or maybe compression... does it look better in RAW BMP mode? | 02:15 |
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yoleaux | nmz787_: I'll pass your message to chris_99. | 02:15 |
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nmz787_ | https://www.researchgate.net/profile/Masashi_Aono/publication/236137195_Amoeba-Inspired_Nanoarchitectonic_Computing_Solving_Intractable_Computational_Problems_Using_Nanoscale_Photoexcitation_Transfer_Dynamics/links/00b7d5171efa34219c000000.pdf | 02:46 |
nmz787_ | https://uwspace.uwaterloo.ca/bitstream/handle/10012/10224/Khan_Asif.pdf | 02:47 |
nmz787_ | Towards Microfluidic Design Automation - 2016 | 02:47 |
nmz787_ | "We propose a design methodology and tool to design microfluidic chips based on SMT solvers. The design of these chips is expressed using the language of partial differential equations (PDEs) and non-linear multi-variate polynomials over the reals. We convert such designs into SMT2 format through appropriate approximations, and invoke Z3 and dReal solver on them. Through our experiments we show that using SMT solvers is a not only a viable ... | 02:48 |
nmz787_ | ... strategy to address the microfluidics design problem, but likely will be key component of any future development environment." | 02:48 |
nmz787_ | well that's encouraging | 02:48 |
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nmz787_ | https://wiki.hh.se/wg211/images/f/fb/M13Rayside.pdf | 02:50 |
nmz787_ | "Synthesis of Microfluidics Chips using SMT Solvers" | 02:50 |
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chris_99 | heh what the hell, was just gonna order some leds from thorlabs, but the shipping is $92.37 eek | 03:24 |
yoleaux | 06:52Z <nmz787_> chris_99: I worked on this a while years ago: https://github.com/nmz787/open-spectrometer/blob/master/desktop-software/openSpectrometer.py | 03:24 |
yoleaux | 09:15Z <nmz787_> chris_99: nice progress! looks like I definitely see either digitization noise or maybe compression... does it look better in RAW BMP mode? | 03:24 |
chris_99 | nmz787_, that's just the jpeg, yeah at full res raw it looks pretty good, i can play with the iso / shutter speed etc too | 03:24 |
chris_99 | i knocked up something last night to generate the spectral graph | 03:25 |
chris_99 | i'll have a looky at your code now though, i need to get some IR leds | 03:28 |
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chris_99 | thought this was a really clever idea: | 08:28 |
chris_99 | .title https://www.reddit.com/r/electronics/comments/4z6lup/i_built_a_circuit_that_calculates_pi_with_a/ | 08:28 |
yoleaux | Too Many Requests | 08:28 |
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kanzure | "A terrestrial planet candidate in a temperate orbit around Proxima Centauri" http://www.nature.com/nature/journal/v536/n7617/full/nature19106.html | 10:13 |
maaku | yay the actual article finally | 10:14 |
maaku | https://arxiv.org/abs/1503.01136 | 10:20 |
maaku | .title | 10:20 |
yoleaux | [1503.01136] Combining high-dispersion spectroscopy (HDS) with high contrast imaging (HCI): Probing rocky planets around our nearest neighbors | 10:20 |
maaku | possible spectroscopy technique for this planet | 10:21 |
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superkuh | An electrostatic solar sail implementation could get a microwave interferometer out to the solar gravitational focal line aligned with Proxima B in under 20 years and give ~80 km resolution of water clouds (should they exist) at 22 GHz. | 12:35 |
superkuh | This lecture on electrostatic sails was given yesterday, "Bruce Wiegmann, NASA Marshall Space Flight Center, Heliopause Electrostatic Rapid Transit System "HERTS"" http://livestream.com/viewnow/NIAC2016/videos/133764483 | 12:36 |
superkuh | https://www.youtube.com/watch?v=ObvKVe5H8pc - This talk explains the problems and solutions for using the sun as a gravitational lens. | 12:36 |
superkuh | This book has far more detail: http://erewhon.superkuh.com/library/Space/Spacecraft/Deep%20Space%20Flight%20and%20Communications_%20Exploiting%20the%20Sun%20as%20a%20Gravitational%20Lens_%20Claudio%20Maccone_%202009.pdf | 12:37 |
Urchin | interesting | 12:38 |
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kanzure | various comments https://news.ycombinator.com/item?id=12353441 | 13:21 |
kanzure | "Incessant obsolesence" http://arxiv.org/abs/1101.1066 | 13:22 |
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Urchin | that's one very minimal colony ship | 13:29 |
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fenn | guillem escude says 20 years to _go_ to proxima B with a laser propelled solar sail | 15:34 |
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superkuh | We're going to need something at the solar gravitational focus if we want any kind of data rate to probes eventually sent. | 15:39 |
superkuh | And e-sail tech is at least TRL4/5 already. Laser sail stuff is a pipe dream currently. TRL1. | 15:42 |
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maaku | A much better strategy : https://news.ycombinator.com/item?id=12327125 | 16:28 |
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kanzure | bloop | 18:50 |
kanzure | caught a veekun. | 18:50 |
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kanzure | "many-core parallel processor" http://parallel.princeton.edu/openpiton/ | 20:46 |
kanzure | er, http://parallel.princeton.edu/piton/ | 20:46 |
kanzure | http://parallel.princeton.edu/papers/openpiton-asplos16.pdf | 20:47 |
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kanzure | dunno how much non-icestorm fpga dev kits are supposed to be priced at these days.. http://store.digilentinc.com/nexys-4-ddr-artix-7-fpga-trainer-board-recommended-for-ece-curriculum/ | 20:55 |
xentrac | hey, so you know this topology optimization stuff? And MEMS? there's this "new" (2013) book out called "Handbook of Compliant Mechanisms" about flexure design | 21:17 |
xentrac | you might remember Merkle's buckling-spring gates, which fall within this category | 21:18 |
xentrac | the book has a chapter on topology optimization, but nothing about mechanical digital logic as far as I can tell | 21:19 |
kanzure | vlsi mechanical logic is a thing that exists by now, surely | 21:21 |
xentrac | it turns out that flexures have advantages of up to several orders of magnitude over sliding-contact mechanisms in efficiency, fabrication cost, wear lifetime, operational frequency, and precision | 21:21 |
xentrac | although they have major disadvantages as well | 21:22 |
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xentrac | in one of the first sections of the book, it says, "Compliant mechanisms will likely be central to the creation of nanoscale machines." | 21:24 |
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xentrac | the topopt chapter is a bit weak though | 21:50 |
xentrac | like, the climactic flexible pliers design at the end of the chapter is actually by Ole Sigmund, the topopt dude | 21:51 |
xentrac | rather than by the chapter's author | 21:51 |
xentrac | and it's 2D, and they didn't actually build it | 21:52 |
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xentrac | the second half of the book is a library of known mechanisms but even they kind of suck | 21:58 |
xentrac | but hey it's a start | 21:58 |
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xentrac | hmm actually there are some interesting things in here | 22:25 |
kanzure | http://www.scientificamerican.com/article/busting-the-billion-dollar-myth-how-to-slash-the-cost-of-drug-development/ | 22:47 |
kanzure | didn't actually look closely, but was there a suggestion in there of pairing rare neglected disease medications together? just mix things together until the finance works out? heh | 22:47 |
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fenn | maaku: https://en.wikipedia.org/wiki/Camelot_30K | 23:18 |
superkuh | I actually had to buy that one in Hardcopy. It's nowhere online except in Portuguese. It is not a very good book. The concept is fun but it's hard to ignore how forced everything is. It's like a prototype for his excellent later books set on neutron stars. | 23:19 |
fenn | yep he's a terrible author | 23:19 |
fenn | i bought every robert forward book with the intent of scanning them | 23:20 |
superkuh | I bought Camelot 30K this winter with every intent of forwarding it to http://1dollarscan.com/pricing.php . But it was bad. So I didn't. | 23:21 |
fenn | aww | 23:21 |
fenn | the ideas are what is important | 23:21 |
fenn | where else are you going to learn about x-ray mirrors | 23:21 |
superkuh | Usually I'd agree. | 23:21 |
--- Log closed Thu Aug 25 00:00:35 2016 |
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