Make:

I'm all for extra-complex systems to do things like power blenders, but I have to say that the conversion from mechanical power->12VDC->120VAC->mechanical power isn't very efficient. What you really need is a direct mechanical drive:

http://store.xtracycle.com/_e/Bicycle_Powered_Blenders/product/B3-0100-/B3_Xtra_Stationary_Setup.htm

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This might seem like a picky negative thing but someone with bad intentions could use the cell phone blocker to, say, interrupt a 911 call for example. an attacker could use it to stifle a call for help perhaps??

ah but these ares small annoyances compared to being subjected to someone else's conversations.

Just an observation.

I know, creating the bomb doesn't kill anyone.

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Posted by: Lead Dreamer on March 12, 2009 at 10:16 AM

I assume you pulled the cellphone jammer 'cause it's outright illegal and could lead to significant federal fines and imprisonment? I'm all for hacking, but even a *tiny* bit of research is in order - you wouldn't send someone out with an organic chemistry set without the basics; you wouldn't have them play with potassium nitrates without basic research - and bluntly, anyone who could use the spectrum analyzer knows better.

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What responsibility do you as the publisher of the information have regarding potential misuse of the information?

The problem is, this is not just a benign use of technology to stimulate social discourse and challenge the status quo by subversion as you suggest. This is a potentially dangerous weapon that could be used by, say, a stalker for example.

Is the technology cool? Sure. Does the artist/engineer deserve congratulations for her accomplishment. absolutely. However The technology doesn't exist in a vacuum and the issue of legality aside, Where does her responsibility to the community at large and your responsibility as a publisher lie?

Congratulations to the artist, she has provoked a discussion not only of the role and place of technology in our lives but the responsibility of the artist and journalist in public discourse.

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Hi Limor Fried
I was wandering if you could send me some instructions or something on how to make the cellphone jammer because i'm constantly having the same trouble as you when i catch the bus every morning.
Thanks
Walternator

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might help if i tell you my e-mail
mr.walter@ntlworld.com
cheers

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i didn't read the website link that you left so there's no need to tell me the specs
walternator

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Limor Fried, can't you put your skills to work doing something positive for the world, rather than interupting someone else's life? Did it ever occur to you that you might be interupting an urgent or emmergency phone call! I hope you have a good attorney.

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Illegal? Dangerous? Irresponsible?

Operating a motor vehicle while using a cel phone is all of these and more. It is negligent and homicidal. As a victim of a cel phone using driver who totaled out my car, I know this to be a fact.

Cel phone jammers should be required installed in all new motor vehicles and required to be retrofitted into all existing motor vehicles, to go on with the ignition switch, to prevent driver's from talking on their phones instead of paying attention to the road.

Anyone complaining about cel phone jammers is more interested in continuing their dangerous behavior than the safety of themselves and those they will inevitably injure in the car accidents they cause.

Kudos to Makezine!

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Funny how no one mentioned how jammers are being used to prevent IED's from exploding in Iraq.

-Iraq Veteran

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