Brmlab August 2013

brmlab@brmlab.cz

44 participants
50 discussions

geiger
by Jiří Pinkava 20 Aug '13

20 Aug '13

Ahoj, budu kupovat trubici na stavbu geigera, uvažoval jsem o (1) a) pokud někdo poradíte lepší trubici (levnější ale stejně citlivou) budu rád b) pokud by jste někdo měl zájem taky o jeden kousek dejte vědět Pinky (1) http://www.ebay.com/itm/TESTED-SBT-10A-NEW-NOS-GEIGER-MULLER-TUBE-COUNTER-R…

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Hello from Bitcoin and 3D printing
by Turkey Breast 15 Aug '13

15 Aug '13

Hi, I'm writing Bitcoin software such as http://libbitcoin.dyne.org and http://sx.dyne.org , and I'm here with the cofounder of DEFCAD which is a commercial project from Defense Distributed (3D printing guns). Me (Amir Taaki) and Ashley are here in Prague for a day tomorrow before we leave on Saturday. Would someone hook us up with a place to stay somewhere? Thanks!

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Rezim vstupu do budovy
by Petr Baudis 15 Aug '13

15 Aug '13

Dobry den, radi bychom se zeptali, jaky je aktualne rezim hlavniho vchodu do budovy ve vecernich hodinach, zaznamenali jsme totiz, ze se hlavni vchod v poslednich dnech zamyka mnohem vice nez dosud (alespon v utery to tak bylo). Nasi clenove a navstevnici typicky predpokladaji, ze vratnice funguje jako dosud a tento nesoulad s realitou nebo mozna nepochopeni vytvari oboustrane neprijemne situace. Jde o docasnou zalezitost nebo trvalejsi zmenu? Ocenili bychom, kdyby takove zmeny byly predem najemnikum ohlaseny, abychom se podle toho mohli zaridit, takhle to bylo pro nektere neprijemne prekvapeni. V souvislosti s tim by nas zajimalo, kde je v objektu umisten pozarni vychod a jak je zajistena jeho prostupnost v pripade nouze. Dekujeme, Petr "Pasky" Baudis et al.

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Fwd: Přihlášky na 43. konferenci EurOpen otevřeny
by Ruza - Android Mobil 15 Aug '13

15 Aug '13

-------- Původní zpráva -------- Odesílatel: "Vladimír D. Rudolf" <dolf(a)europen.cz> Odesláno: Thu Aug 15 14:41:48 CEST 2013 Předmět: Přihlášky na 43. konferenci EurOpen otevřeny Připravili jsme pro vás další odbornou konferenci. Více na http://europen.cz -- *Vladimír Dolf Rudolf * Univerzitní 8, 306 14 EurOpen.CZ tel.: 724 005 478 -- Odesláno z mého telefonu s Androidem pomocí pošty K-9 Mail. Omluvte prosím mou stručnost.

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LiveView
by Pavol Rusnak 15 Aug '13

15 Aug '13

Ahoj! Kedysi davno som doniesol do brmlabu LiveView[1]. Viem ze to Ax chvilku pouzival a potom to brickol a bolo to v sklade medzi USB klucmi. Neviete kde sa to nachadza teraz? (V sklade som to nenasiel) [1] https://brmlab.cz/_media/project/se-liveview.jpg -- Best Regards / S pozdravom, Pavol Rusnak <stick(a)gk2.sk>

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probioticky worksho, vymena kultur - den dve
by Frantisek Apfelbeck 15 Aug '13

15 Aug '13

Zdravim ve spolek, Vcerejsi akce se myslim opravdu povedla, takze dnes pokracovani s lehkym navysenim pochutin. Z cca 1000 Kc investic uz jsme pokryly 600 Kc, takze prima. Dnes bych rad udelal ochutnavku mlecneho kefiru co jsme zacali vcera, minimalne jeden typ s ovocem. Napoj z vodniho kefiru bude jiz doufam take hotov, dale bych rad pripravil nejake crostiny neb mate gril a kdyz najdu nejakou panev na smazeni, tak by jsme mohli udelat zelnaky ze zeli co Stevko vykvasil v misntim podzemi (muzu zkusit i ten gril, uvidime). Rad bych pridel jednu ci dve pomazanky, takze by to mela byt plejada. Pokud nekdo prinese jablka ci banany, tak mam cca 2 kg belgicke cokolady od osazenstva Belgium vesnice z OHM2013, tak si muzem hrat, Cestimer nedavno delal nejaky dabelksy experiment s chili ... :-) Mejte se prima a budu se tesit, zacatek bych dal zase tak kolem te sedme vecer do pozde :-) Jinak upozornuji, ze v patek odpoledne v 17:00 vyrazim smer Amsterdam a pak Korea, takze je treba vse rozvazne poklidit at tu nezbyde zadna "biologicka bomba". Dnes chci trochu pred workshopem trochu poklidit podlahy. S pozdravem, Frantisek Algoldor Apfelbeck biotechnologist&kvasir and hacker http://www.frantisekapfelbeck.org "There is no way to peace, peace is the way." Mohandas Karamchand Gandhi

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Fwd: campzer0: call for participation
by Pavel Ruzicka 15 Aug '13

15 Aug '13

we have a location and a call for participation: http://camp.hsbp.org/2013/zer0/#cfp you guys, this will be soooo cool. come and join us ---------------------- Call for Papers Dates and Deadlines Submission deadline: 2013-08-25 00:00:00+0200 Notification of acceptance: 2013-08-31 Presentation Language: English Submission Email: cfp(a)camp.hsbp.org Topics: should cover mostly technical presentations focusing on - breaking and building infrastructure and on - current ethical issues Location: Fort Monostor, Komárom, Hungary Contact: - Twitter: @campzer0 - E-mail: campzer0(a)hsbp.org - IRC: #campzer0 @ IRCnet (the following shamelessly adopted from the 30c3 CfP) The "Hungarian Autonomous Center for Knowledge and friends" runs the camp with the help of self-organized volunteer teams and on its own funds. We are proud of this and we are looking forward to copy the inspiring example of independent self-organizing as championed by the organizers of the Chaos Communication Congress and Camps. We regard this event as one of the few places where a global exchange using the creative-critical approach to technology and society is possible without censorship. We are not providing a stage to secret services or other state organisations. However, based on our concept and on the fact that work is done on a voluntary basis, a thorough advance screening of participants and speakers is not possible. It goes without saying that everyone attending the camp should be treated with respect and consideration. A significant proportion of delegates and speakers value their privacy, the integrity of their own data and their photographic likenesses. Those who attach less importance to personal agency in these matters are in a stronger position. We therefore ask them to respect the feelings and wishes of others. Submission Guidelines For talks and workshops Please send us a description of your suggested talk that is as complete as possible. The description is of particularly importance to the selection, so please ensure it is as clear as possible. Quality takes precedence over quantity. Due to the non-commercial nature of the Camp, presentations which aim to market or promote commercial products or entities will not be entertained. As it is possible that that there will be multiple submissions about the same topic, please show us exactly why your talk should be part of the camp. Please write something about yourself, your environment and your motivation. It does not matter if the talk has been held at another conference, All it has to be is up to date. Talks should be no longer than 45 minutes plus 15 minutes for question and answers. Longer slots are possible in principle. There are 20-minute slots as well. Please tell us the proposed length of your talk at the time of submission. For projects, installations and other fun things We have a lot of space (64.000m^2) and we are open for crazy and surprising stuff. Publication Audio and video recordings of the lectures will be published online in various formats under the license CC Attribution ShareAlike 2.5 Hungary (CC BY SA 2.5 HU). This license allows commercial use of excerpts by media institutions as part of their reporting. If you do not wish material of your lecture to be published or streamed, please let us know in your submission. Travel, costs & visa CampZer0 is a non-commercial event, where neither the organisers nor the speakers are being paid. Online submissions only All submissions of lectures and workshops have to be submitted to our CfP email address: cfp(a)camp.hsbp.org -- pgp: https://www.ctrlc.hu/~stef/stef.gpg pgp fp: FD52 DABD 5224 7F9C 63C6 3C12 FC97 D29F CA05 57EF otr fp: https://www.ctrlc.hu/~stef/otr.txt --

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progress on brewing with kombucha culture
by Frantisek Apfelbeck 15 Aug '13

15 Aug '13

Hi to all, I just wonder how are you kombucha doing? I hope that they are well and they prosper. For the ones who got their cultures on the OHM2013 and prepared 0.5 l of brew with 10% (w/v; 50 g) of light brown or dark brown cane sugar and 0.5-1% (w/v; 5-10 g) of black tea, the time of making larger batch is coming. For the ones who got their SCOBY's recently, I recommend to make the first batch as described above and let it ferment for 10-14 days so the mother (SCOBY) gets thicker and is more easy to work with, the brew however is too acidic to drink but should be feasible for vinegar. The SCOBY harvested after such period should be fine to ferment up to 5 l of brew easily, it will take few weeks of brewing till the mass of the SCOBY stabilizes and the performance is more repetetive. For the next brew I would suggest probably 5 l wide mouth jar and aim for culture volume (Vc) 4 l. The concentration of ingredients for the growing media (brew) should be around 5-6% (w/v; 200-240 g) of cane sugar (light brown or dark brown) and 0.5-1% (w/v; 20-40 g) of black tea. This would leave you with +- 1 l of air in the container, still the culture has to be protected by some cloth so it can breath but the insect can not get in - make sure to fasten it by some rubber string. If fermented at room temperature ranging from 20-25C, you should be ready to harvest between 5-8 days optaining a lighter style of kombucha, suitable for drinking 0.5-1.5 l per day of consumtion should be OK. You need to make new media, transfering the mother (SCOBY) in it and straining and bottling the old brew. That is a good moment for adding variety of flavours, be careful about the ones with high concentration of sugars - they will go really fizzy and can run from the bottle or even explode. Simple one (whic I truly dislike but many love) is nettle flavour. You get either fresh or dried nettle leaves and make a strong infusion by boiling (for 4 l, I would suggest 0.5-1% (w/v; 20-40 g) of leaves simmered for 5 min or so in low volume of water, maybe around 200-300 ml). Strain the nettle out and add the liquid to the brew, do not worry about the temperature the total volume will buffer it. When happy with flavour I recommend to strain the brew completely through fine sieve so you get rid of small pieces of SCOBY which are not liked by many, also it slows down the creation of the SCOBY's in the new bottles. If you like your drinks to be fizzy, I recommend to bottle them bit sweeter than you like, make sure the lids are really tight so the carbon dioxide which is being produced doesn't escape and keep them fermenting at room temperature for one to three days (good trick is to bottle one bottle in plastic, so you can check by touching what is the pressure, it is hard to say if all the bottles are in glass). When happy with the fizzines, transfer the bottles to cold (below 6C) and keep them maturing for week at least to improve the flavour, but you can drink directly too. Well that would be a bit of info please do ask if you have questions and add your suggestions! It may take me a bit of time to respond, I'm giving workshops and exchanging cultures in Prague hackerspace Brmlab now https://www.brmlab.cz/project/food_hacking#bio-culture_exchange (got starter from Dan to make my own tempeh :-))) and I will be leaving for Korea on Saturday, I finally got working visa as a fermentation expert :-) Talk to you all soon, and below are few links which should help you to progress on kombucha and other ferments. Sincerely from Brmlab, Prague, Frantisek Algoldor Apfelbeck Links https://www.noisebridge.net/wiki/Recipes_and_Manuals https://kvasirdiary.wordpress.com/ http://www.wildfermentation.com/forum/ biotechnologist&kvasir and hacker http://www.frantisekapfelbeck.org "There is no way to peace, peace is the way." Mohandas Karamchand Gandhi

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Altera FPGA kit
by Jan Hrach 14 Aug '13

14 Aug '13

Ahoj, ve skladu na poličce č. 21 přibyly tři Altera FPGA/CPLD kity (hledejte veliký antistatický pytel). Jsou trochu starší, ale na učení se s FPGA bohatě stačí. Feel free to hack! Kity byly vyřazeny a nám věnovány FIT ČVUT. -- Jan Hrach, http://jenda.hrach.eu/ GPG CD98 5440 4372 0C6D 164D A24D F019 2F8E 6527 282E

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zitra nekdo v Brmlabu?
by Frantisek Apfelbeck 14 Aug '13

14 Aug '13

Zdravim ve spolek, Zitra nekdy po poledni ci odpoledne bych rad dorazil do Brmlabu a dostal se dovnitr, otazkou je, zda je nekdo kolem kdo by mi to umoznil. Najde se nekdo kdo by tam bud byl ci by mohl zaskocit a pustit me dovnitr? Od sedmi je workshop tak bych rad udelal nejake ty nakupy, pripravil pochutiny atd a budu mit pres 40 kg v zavazadlech ... Mejte se prima a dejte mi prosim vedet, ja prizpusobim prijezd. Ahoj, Frantisek Algoldor Apfelbeck biotechnologist&kvasir and hacker http://www.frantisekapfelbeck.org "There is no way to peace, peace is the way." Mohandas Karamchand Gandhi

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Brmlab August 2013