#robotics Logs

Sep 25 2014

00:35 NotWorthCr4p nothing in google news for "mach 30"
00:36 mrdata yeah, like i said only vaguely referenced; my informant speaks quietly to .mil guys
00:37 mrdata so this is firmly "rumour only"
00:37 NotWorthCr4p maybe they were talking of the new rail gun in town, but that fired darts, not planes
00:37 mrdata perhaps
00:37 mrdata is there a handy link to that?
00:38 NotWorthCr4p the dart gun?
00:38 mrdata yeah
00:38 tWorthCr4p l
00:38 mrdata mach 30 is enough for orbital insertion, so i can extrapolate maybe
00:39 NotWorthCr4p https://www.google.com/search?q="rail+gun" <<== mentions mach 7, not mach 30
00:39 NotWorthCr4p Tiggr has pics of it somewhere
01:19 NotWorthCr4p mrdata , any idea why the TU-160 looks like a copy of the B1 ? Keep in mind the TU-160 flew 6 years before the B1 did
01:20 Jak_o_Shadows How many designs are there for big supersonic aircraft?
01:21 NotWorthCr4p couple dozen, only 3 where built full scale and flying, afaik
01:21 NotWorthCr4p the TU-160, the Concorde, and the B1 was supposed to be supersonic
01:21 NotWorthCr4p i think the B49 was, but it wasn't that big
01:22 NotWorthCr4p B-50?
01:23 NotWorthCr4p aarg, i forget
01:23 NotWorthCr4p B-47
01:23 NotWorthCr4p nope, it wasn't supersonic, it just pretended to be
01:25 Jak_o_Shadows That's my point. Even concepts all look similar
01:25 NotWorthCr4p you mean like the nasa shuttle and the buran?
01:26 Jak_o_Shadows Uh, I was sorta referring more to super sonic transport planes
01:26 NotWorthCr4p yeas, i was referring to the look-alikeness of ,, nevermind, i'll just be digging a deeper hole
01:31 mrdata let's see, two supersonic jets, both having adjustable wing tips.. both bird like in appearance
01:31 mrdata what am i looking for?
01:32 mrdata the beauty of nature getting it first?
01:32 tWorthCr4p is sorrry to have mentioned any
01:33 mrdata no this informant was talking about something different
01:34 data googles for aw
01:36 mrdata this thing is cute, though: http://www.popfi.com/2011/02/07/navy-unveils-new-bat-style-x-47b-stealth-bomber/
01:37 NotWorthCr4p remember there was once a mini-me of the SR71?
01:38 mrdata X-47B is subsonic, oh well; still a cutie
01:38 NotWorthCr4p used one engine off the SR71, cold be carried by the SR71 piggyback
01:42 NotWorthCr4p D-21
01:43 mrdata "On Friday, June 15, 2007, the US Defense Advanced Research Project Agency (DARPA), in cooperation with the Australian Defence Science and Technology Organisation (DSTO), announced a successful scramjet flight at Mach 10 using rocket engines to boost the test vehicle to hypersonic speeds." --
01:43 mrdata http://www.newscientist.com/article/dn12075-scramjet-hits-mach-10-over-australia-.html
01:43 mrdata see why i think of faster speeds more recently
01:43 NotWorthCr4p yea,, that one was str8 down into the ground, wasn't it?
01:44 mrdata idk, but i think the article got the altitude wrong
01:44 mrdata probably 5.3 km, not 530 km
01:48 mrdata wikipedia thinks the fastest scramjet is X-43 though,
01:48 mrdata http://en.wikipedia.org/wiki/NASA_X-43
01:52 mrdata new things include the wave rider: http://en.wikipedia.org/wiki/Boeing_X-51
01:52 mrdata but isnt fast yet
01:52 mrdata (relatively speaking)
01:53 mrdata "Mach 5 for 210 seconds on 1 May 2013 for the longest duration hypersonic flight."
01:53 mrdata so, has stamina
01:56 mrdata http://www.wpafb.af.mil/news/story.asp?id=123346970
02:01 mrdata here's a nice pic: http://www.af.mil/AboutUs/FactSheets/Display/tabid/224/Article/104467/x-51a-waverider.aspx
02:03 mrdata i like how tiny the flight control surfaces are
02:03 mrdata otherwise it's a flying mouth
03:47 deshipu hmm, 5 years ago
03:47 deshipu you'd think they made some progress in that time
08:44 Aj0 hello, do you know some good way how to start with programming robots, i dont know anything about robots but i am quite good at programming in C++ and i learn very fast... ?
08:52 deshipu Aj0: perhaps something like http://letsmakerobots.com/start ?
08:55 Aj0 deshipu: hmm, it looks very nice, thank you, i'll try it
08:57 GargantuaSauce blinky LED is step 1
08:59 iveevue Aj0, What type of robot are you looking to make?
09:00 Aj0 any, i like to see something real what works and it is programmed by me...
09:01 Aj0 i dont know what type of robot is easy for beggining
09:01 iveevue Make a centipede.
09:03 Aj0 what is it :) ?
09:03 iveevue Google image it :)
09:03 Aj0 oh,
09:03 Aj0 :) yes, i have it... in which language, the robots are programmed
09:03 deshipu mostly in C
09:04 deshipu some in assembly
09:04 deshipu some in some higher level languages
09:04 deshipu I wonder if anybody is using those forth chips
09:04 Aj0 oh, it's okay
14:59 NotWorthCr4p more stupidity in the news : "Sleek and streamlined, packing an explosive force of up to 700 million pounds of TNT, the B61 thermonuclear (tactical) weapon"
15:00 tWorthCr4p cusses the copy/p
17:04 anonnumberanon hey can anybody find me "Engineering Mechanics" by Nelson, Best, McLean? I am in jail please.
17:25 TELunus anonnumberanon: Closest match I see is "Engineering Mechanics: Statics & Dynamics" by Hibbeler
17:25 TELunus On my bookshelf.
17:30 Tom_itx anonnumberanon you get interweb in jail?
17:30 Tom_itx wtf
17:30 NotWorthCr4p he hacked it by bashing the lightbulbs
17:31 NotWorthCr4p the toilet monitors have a back door
17:36 NotWorthCr4p Search results: "Engineering Mechanics" Displaying hits from 1 to 30 (approx 40 found) ,, doesn't look like any of them are Nelson, Best, McLean
17:40 tWorthCr4p closes the page and wanders away since noone is interested in downloading
20:32 rue_house ok I have 20 LM317
20:34 rue_house 100pcs of 74xx1G14
20:35 rue_house 100pcs 74xx164
20:36 rue_house think of all the things I can do
20:36 e_house tries to think of all the things he coul
20:37 e_house starts drifting off to s
20:37 rue_house good day, exhausting
20:43 rue_house the lm317 were gonna be for current drivers for leds, but the overhead v is too high
21:14 rue_house tea I forgot about tea
21:14 rue_house maybe just a quick nap
21:16 rue_house did I say that I stacked the avr 74164 library on the hd44780 library to come up with a serial 44780 library that prettymuch just used existing code?
21:18 rue_house ups I need to fix the ups
21:18 rue_house sleeeeep
21:45 Tom_itx rue_house i got a serial lcd on my oven
21:59 rue_house is it hd44780?
21:59 rue_house proto over serial?
22:00 rue_house hmm I need a battery box
22:00 rue_house wait I have a battery box
22:00 rue_house damn
22:00 rue_house I almost have one ov everything
22:01 Loshki Schaum's Outline of Engineering Mechanics Paperback 1997 by E. Nelson (Author), Charles Best (Author), et. al. $0.01 used on Amazon
22:02 Tom_itx yes
22:04 NotWorthCr4p but a schaums != the real book
22:05 NotWorthCr4p those are the authors he wanted tho
22:05 NotWorthCr4p a lil wierd he'd buy the book on Amazon from jail, instead of downloading the actual book by Hibbeler
22:06 Jak_o_Shadows eh
22:06 Jak_o_Shadows I preferred timoshenko to hibbler
22:08 NotWorthCr4p he wrote a lot
22:08 Jak_o_Shadows Yeah. Timoshenko went into a little more maths, which I liked
22:08 Jak_o_Shadows This was mechanics of materials I think
22:08 rue_house haha, I battery box perfectly fits TWO of the batteries I need
22:08 rue_house I neeed two of them too!
22:09 tWorthCr4p nods, he did write
22:09 e_house clears space to upgrade the 8Ah ups battery to
22:10 Loshki NotWorthCr4p: So they're like cliff notes for engineering?
22:10 tWorthCr4p nods,, make good refresher b
22:11 NotWorthCr4p if you need no explainations for anything, or examples
22:11 NotWorthCr4p i wonder how many languages Timoshenko spoke.. Russian, English, Ukranian, Croatian, ......
22:12 NotWorthCr4p German too i suspect
22:12 tWorthCr4p gets gooseb
23:23 rue_house there
23:23 rue_house 7Ah -> 70Ah
23:23 rue_house that should up the runtine
23:35 NotWorthCr4p and lengthen the charge time
23:35 NotWorthCr4p up the charge current
23:37 tWorthCr4p should goto bed in 3 hrs
23:38 tWorthCr4p came up with a plan for a linear "time machine", it's real interesting what can and cannot be done wit
23:42 NotWorthCr4p for instance, if you entered it thru a side door while pushing a cart with a tomato plant on it, and you gave the cart a shove down the tunnel, you could watch the plant grow and sprout tomatoes
23:43 NotWorthCr4p but if you tried to walk over to the cart, within seconds you'd get weak, dizzy , and die of dehydration well before you got to the cart
23:44 Loshki NotWorthCr4p: I'd like to see a schematic...
23:44 Jak_o_Shadows It would be soooo handy
23:44 Loshki NotWorthCr4p: I'd like to see a schematic, yesterday...
23:44 NotWorthCr4p i agree, i am looking for the parts on Ebay now
23:45 Loshki NotWorthCr4p: must be duff, or you'd have come back and given yourself the schematic...
23:46 NotWorthCr4p doesn't work quite like that, told ya "it's real interesting what can and cannot be done with it"
23:46 Loshki It ripens bananas apparently...
23:47 Jak_o_Shadows Does it have to be a tunnel? Or could it be a room? Does it have an on-off switch?
23:47 NotWorthCr4p for instance, if you enter with a dead rodent, mix it with dirt as fertiliser, and then push it down the tunnel in the younger-direction, the rodent does not come back to life
23:47 Jak_o_Shadows Pretty sure that it is a good way towards solving a good many science/computer problems
23:48 NotWorthCr4p Jak_o_Shadows, it's a pathway, and space restricted, and closed, it must be a tunel, altho it can be made larger, like a Dyson's Ring
23:48 Loshki NotWorthCr4p: Is it larger on the inside..
23:48 NotWorthCr4p Loshki , don't be silly, it's not a tradis
23:48 NotWorthCr4p tardis
23:48 Jak_o_Shadows So have to do battery powered computers/lab equipment. Gotcha
23:48 Loshki NotWorthCr4p: just checking if you knew...
23:49 NotWorthCr4p Jak_o_Shadows , that's one of the intersting things, the electron flow (speed) is moderated by how fast it's being pushed down the tunnel
23:51 Jak_o_Shadows would that make using it to speed up slow computations impossible?
23:52 NotWorthCr4p depends on how you dealt with the heat