[Noisebridge-discuss] Think it would be cool to start a current-hax at noisebridge.net list
jim at well.com
Mon Oct 7 16:24:54 UTC 2013
Linux system administration study group
in Turing on Tuesdays between 3 and 5 PM.
We've spent time learning to use GIT, IPtables,
Nagios; discussions often include CLI
Linux discussion group in Turing on
Wednesdays between 6 and 8 PM. Sometimes we
discuss the state of Linux and its community,
often we help people (including each other)
fix problems, anything Linux is okay.
On Mon, 2013-10-07 at 02:47 -0700, Robert Chu wrote:
> I think this would be an awesome start for people to send simple
> emails about current projects that they are working on and would like
> to share/discuss at the Noisebridge Hackerspace. It think it would
> also be a great catalyst for collaboration on projects as well. They
> could be tweet style emails such as.
> To: currently-haxing at noisebridge.net
> Subject:y Hacking a Raspberry pi to control three different led strips
> at once.
> Body: Working toward creating awesome led lighting for the HaXiTorium
> to use, instead of those florescent, evil, "I am a mouse in a
> laboratory.'''Feeling type.'" Tubes.
> My motivation to do this is because LEDs are freaking awesome, and
> because of the health dangers and risks for being under florescent
> tubes constantly; they suppress meletonin... What?!?
> I have already also installed one strip of led lighting and it barely
> suffices for typing at a terminal, Other then that reading a book
> would be rather challenging for one with not the greatest of eyes
> sight at night. And the solution... More LED strips. :-P
> Other then that I think it once again would be cool to have a
> current-hax at noisebridge.net list (or something around that name-make
> it current..?)
> Feel free to reply to this email and collaborate with me about this
> project. This could be a possible way for new and regularZ people to
> introduce themselves and find others interested people to collaborate
> on their projects; something that has been somewhat of a journey
> through the NB environment lately (and quite possibily in the past).
> IMHO currently-haxing at noisebridge.net >= project page on NB.WIKI.
> P.S. As for all of the recent drama, I think that Noisebridge as a
> hackerspace withing a Hacker Community at Large is doing a great job
> at working through the issues that have recently transpired.
> Cheers again.
> "RAYCing around the space, while working on some led-blinking Light
> Emitting Diodes to set into the space. For better illumination for the
> human RAYC because these florescent lights seem to cause head aches
> and eye strains that are really not good for this place. I am not
> ripping them out-just adding some LEDs because the following quotes
> may be worth the read. "
> "The normally unnoticeable 100–120 Hz flicker from fluorescent tubes
> powered by electromagnetic ballasts are associated with headaches and
> eyestrain. Individuals with high flicker fusion threshold are
> particularly affected by electromagnetic ballasts: their EEG alpha
> waves are markedly attenuated and they perform office tasks with
> greater speed and decreased accuracy. Ordinary people have better
> reading performance using high frequency (20 kHz – 60 kHz) electronic
> ballasts than electromagnetic ballasts, although the effect was large
> only for the case of luminance contrast." - Wikipidea
> The vast majority of devices containing LEDs are "safe under all
> conditions of normal use", and so are classified as "Class 1 LED
> product"/"LED Klasse 1". At present, only a few LEDs—extremely bright
> LEDs that also have a tightly focused viewing angle of 8° or less—
> could, in theory, cause temporary blindness, and so are classified as
> "Class 2". The Opinion of the French Agency for Food,
> Environmental and Occupational Health & Safety (ANSES) of 2010, on the
> health issues concerning LEDs, suggested banning public use of lamps
> which were in the moderate Risk Group 2, especially those with a high
> blue component in places frequented by children. In general,
> laser safety regulations—and the "Class 1", "Class 2", etc. system—
> also apply to LEDs.
> While LEDs have the advantage over fluorescent lamps that they do not
> contain mercury, they may contain other hazardous metals such as lead
> and arsenic. A study published in 2011 states: "According to federal
> standards, LEDs are not hazardous except for low-intensity red LEDs,
> which leached Pb [lead] at levels exceeding regulatory limits (186
> mg/L; regulatory limit: 5). However, according to California
> regulations, excessive levels of copper (up to 3892 mg/kg; limit:
> 2500), lead (up to 8103 mg/kg; limit: 1000), nickel (up to 4797 mg/kg;
> limit: 2000), or silver (up to 721 mg/kg; limit: 500) render all
> except low-intensity yellow LEDs hazardous."
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