#robotics Logs

Jul 07 2017

12:02 AM rue_house: 22-1 is 21, divided by 3 is 7
12:05 AM rue_house: so, .. no
12:05 AM rue_house: oh 7 doublings
12:05 AM rue_house: 128 strands
12:05 AM rue_house: good thing its only 1 turn
12:05 AM rue_house: 1 2 4 8 16 32 64
12:05 AM rue_house: yea 128
12:05 AM rue_house: cause thats 6 doublings
12:05 AM rue_house: yea at 32Khz
12:05 AM rue_house: wonder how many turns on the primary
12:06 AM mrdata__: http://i.imgur.com/nuA0bXT.gif
12:07 AM mrdata__ is now known as mrdata
12:08 AM rue_house: hah nice
12:08 AM rue_house: I wonder how they rendered it
12:08 AM rue_house: I want something that takes an stl and makes line art like that
12:51 AM Administrator is now known as Guest67240
01:47 AM Administrator is now known as Guest62095
02:29 AM deshipu: I'm sure Blender can do it
02:49 AM Administrator is now known as Guest48610
03:50 AM Administrator is now known as Guest79413
05:28 AM Jak_o_Shadows: hmmm.Blender might have a way of doing that nicely
05:29 AM deshipu: it can even overlay it on your movie
09:27 AM rue_house: hmmm blender
10:30 AM SpeedEvil: Blender can do too damn much.
10:30 AM SpeedEvil: That's pretty much the problem.
01:07 PM SpeedEvil: Meanwhile on mars:
01:07 PM SpeedEvil: https://mars.nasa.gov/mer/mission/status_opportunityAll.html
01:07 PM SpeedEvil: (the front and rear wheels can independantly steer, one front wheel steering motor died 12y ago, and the other one jammed badly this week, and they've resorted to not using any of the motors)
01:08 PM SpeedEvil: ~13y on mars, and 27 miles. And the only major problem is the steering is a little fucky
01:10 PM deshipu: considering the price, that's not really that good
01:10 PM SpeedEvil: Compared to earlier rovers, it pretty much is.
01:11 PM deshipu: I wonder when will they start "discovering" all the bacteria that the first rovers brought from Earth
01:11 PM SpeedEvil: Also, it was a 'cheap' mission, at only ~$300M/rover to mars
01:12 PM SpeedEvil: None of the bacteria from earth can really reproduce there.
01:12 PM Anniepoo__: they were really careful to disinfect the spacecraft before sending them
01:12 PM mrdata: wrent those baked-out?
01:13 PM deshipu: you only need one to survive
01:13 PM mumptai: you can't bake everything
01:13 PM mumptai: but it is on option
01:13 PM SpeedEvil: You need one to survive, and reproduce.
01:13 PM SpeedEvil: Massively.
01:13 PM Anniepoo__: well, spacecraft are pretty easy to sterilize, cause they have to survive temp extremes and lots of radiation anywya
01:13 PM mumptai: there should be a planetary protection plan (according to code of confduct) you might try to google it
01:14 PM mumptai: no, their batteries and electronics aren't that different from everything else
01:14 PM mrdata: it would be terrible if, having discovered life on mars, it turns out it's not just closely related to life on earth, but caused by contamination from earth during th search for life on mars
01:15 PM mumptai: if you put it under 155�C and 7bar for some hours it will be trash
01:15 PM SpeedEvil: It is trivial to work out if it's contamination.
01:15 PM deshipu: the real life was here all along
01:15 PM SpeedEvil: (that is, if it's still growing.
01:16 PM SpeedEvil: Sequence it, run sequences against the BLAST database
01:16 PM Anniepoo__: whats the BLAST database?
01:16 PM SpeedEvil: DNA/RNA database of 'everything' that's been sequenced.
01:16 PM deshipu: I wonder how they are going to reconcile doing research on mars and terraforming it at the same time
01:17 PM SpeedEvil: Basically it will give a 'perfect' reading of 'species' for all bacteria and ...
01:17 PM SpeedEvil: deshipu: we're not going to be teraforming in this century I suspect.
01:17 PM SpeedEvil: Or only towards the end if so
01:17 PM Anniepoo__: okey dokey - see yall
01:17 PM Anniepoo__: off to foodifying
01:17 PM deshipu: SpeedEvil: the earlier you start...
01:18 PM SpeedEvil: It's enormously more effort than a close analysis of the planet
01:18 PM SpeedEvil: deshipu: well, not really. Only if you have an exponential growth involved.
01:18 PM deshipu: SpeedEvil: well, spreading bacteria would be a start
01:18 PM mrdata: have the sequences from the atacama humanoid been put in the BLAST database?
01:18 PM SpeedEvil: mrdata: basically everything has.
01:20 PM SpeedEvil: https://www.illumina.com/areas-of-interest/microbiology/microbial-sequencing-methods/16s-rrna-sequencing.html
01:22 PM SpeedEvil: http://www.snopes.com/photos/supernatural/atacama.asp
01:26 PM mrdata: yes the 9% unmatched is the interesting thing; arguments exist for this as simply degraded. but if it is assumed to be degraded and discarded, then you cant try to match it against future unknown stuff
01:26 PM mrdata: so knowing that it is kept and is available helps a lot
01:27 PM SpeedEvil: you will get unmatched DNA due to degradation over time.
01:27 PM mrdata: certainly
01:28 PM SpeedEvil: If the thing was thousands of years old, in that environment, you would expect ~0 DNA
01:28 PM mrdata: it may be mere decades old
01:28 PM SpeedEvil: Plus, the alternative 'it's a dead baby' wors.
01:28 PM SpeedEvil: works fine.
01:29 PM mrdata: yes thats all fine; i just want the sequences to be kept and available
01:30 PM SpeedEvil: Sequencing is getting much, much cheaper.
01:31 PM SpeedEvil: Today, you can get for ~$1000 or so, equipment that will let you identify several viruses if you can prepare a reasonable isolate, purely by filtering and then sequencing and then looking up the sequences.
01:31 PM SpeedEvil: Or plant species, or ...
01:32 PM SpeedEvil: (several = reagants for several to a dozen or two tests)
01:38 PM mrdata: returning to mars rovers,
01:39 PM mrdata: so are both spirit and opportunity effectively offline?
01:44 PM tttb2 is now known as tttb
02:12 PM SpeedEvil: Opportunity is still mostly working
02:12 PM SpeedEvil: Spirit is dead for some years now
02:16 PM anniepoo: that's a good description of my life, yup
02:16 PM anniepoo: only opportunity is to keep working,
02:16 PM anniepoo: and my spirit's been dead a while
02:16 PM anniepoo: 8cD
02:18 PM mrdata: r.i.p.