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iseoranker | 14 Feb 2011 09:52
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Humanoid Robot


any one have idea about world's most advanced
humanoid robots ??????? 

I look forward to hear from you guys..

http://www.pal-robotics.com/ Modular Robots 

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http://www.pal-robotics.com/ Modular Robots 
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Mark Bellis | 25 Feb 2011 19:02
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Re: Motors comparison page updated

In lugnet.robotics, Brian Davis wrote:
> In lugnet.robotics, Philippe Hurbain wrote:
>
>> Good thing, the load is not inductive.
>
> No, purely resistive. Although it does have a "boot up" time, I think it's just
> due to heating up the element. I'm not completely sure if the element will
> respond better to a "dimmer" type set-up (running it at less than normal
> voltage) or a "pulsed" set-up with a relay... but with the relay I'd have
> all-electronic NXT-based control, which I really like.
>
>> Looks like some people do:
>> http://www.amazon.com/Leviton-61500-I-Single-Pole-Electro-Mechanical-Incandescent/dp/B003AUDF0Y/ref=sr_1_1?ie=UTF8&s=hi&qid=1294925232&sr=1-1
>
> Wow! Thank you, I didn't realize they made those (although they aren't cheap...
> but it's at least viable).
>
>> Fortunately no, they are not dissipating all the power not going
>> in the load!
>
> Thanks for that tidbit as well... I wasn't aware of that, and was worried about
> it.

I have come across some industrial heater controls.  To get the heaters at part
power (to run them in a closed-loop temperature control), a method of burst
firing is used.

The circuit measures the zero crossings of the AC supply and turns the heater on
for a number of cycles at a time.
(Continue reading)

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Merredith Portsmore | 20 Feb 2011 06:35
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2011 LEGO Engineering Symposium

The Tufts Center for Engineering Education and Outreach (CEEO) invites
you to the 5th annual LEGO Engineering Symposium May 24-26, 2011 at
Tufts University in Medford, Massachusetts, USA.

The LEGO Engineering Symposium aims to bring together educators that
want to explore using LEGO MINDSTORMS to teach STEM concepts. This
year's symposium's theme is Pushing the Envelope of STEM Learning. 
Speakers will include researchers in science education, leading K-12
teachers, maverick Mindstorms users, and other folks pushing the
boundaries of technologies for supporting STEM education.

We will be offering six development labs this year:

I. Seeing the Science/Engineering in Children's Thinking.

II. Integrating Engineering & Literacy.

III. SAM (Stop Action Movie Making) - Tools for Children to Create
Representations of their Ideas.

IV. Labview Education Edition - The Next Generation of Programming.

V.  Supporting the Development of Engineering Design Skills in K-12.

VI.  Physics Glasses:  Augmented Reality and Other Fun Things with
Image Analysis

Development labs are an opportunity for participants to learn,
discuss, and develop ideas.  They are different than traditional
workshops in that participants spend time discussing and developing
(Continue reading)

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Gmane