Alt-BEAM Archive
Message #11434
To: beam@sgiblab.sgi.com
From: Marcus Cole marcuscole@endirect.qc.ca
Date: Tue, 07 Mar 2000 07:05:12 -0500
Subject: [alt-beam] Transistor codings
Hello all,
I have been busy dismantling a few electronic devices, and i was wondering
how to find the specs of those transistor i salvaged? There is 2 rows of
alpha-numerical data written on them, but i do not know how to interpret
them. Any one knows how to do that?
No matter how straight the Gate,
How charged with punishment the Soul,
I am the Captain of my Fate,
The Master of my Soul
11435 Tue, 07 Mar 2000 14:19:34 GMT [alt-beam] Re: Transistor codings beam@sgiblab.sgi.com "Mike Kulesza" whats written on them????
>From: Marcus Cole
>Reply-To: beam@sgiblab.sgi.com
>To: beam@sgiblab.sgi.com
>Subject: Transistor codings
>Date: Tue, 07 Mar 2000 07:05:12 -0500
>
>Hello all,
>
>I have been busy dismantling a few electronic devices, and i was wondering
>how to find the specs of those transistor i salvaged? There is 2 rows of
>alpha-numerical data written on them, but i do not know how to interpret
>them. Any one knows how to do that?
>
>
>
>No matter how straight the Gate,
>How charged with punishment the Soul,
>I am the Captain of my Fate,
>The Master of my Soul
______________________________________________________
11436 Tue, 07 Mar 2000 08:31:55 -0600 [alt-beam] Re: Was lobster, now bees beam@sgiblab.sgi.com Richard Piotter Just a bit of info about bees, but they do have a rather complex visual
brain. If you release a bee and let it go to a source that always
provides polen or nectar or whatever they go for. They will take a
fairly direct route once they know where it is.
Now, if you capture the be and move it to another location that has a
vidual reference to their path they travel, but not in line of sight
witht he hive or the food supply, they will recognize the landmarks,
even from the different angles they aren't used to. What do they do...
They DON'T fly to the familiar spot and take it from there. They take a
direct route to the destination!
Scientists have learned that a bee's visual portion of the brain is more
similar to a part of our brain than that of other incects. This part of
the brain is known to provide us with portions of our "world map". I
just thought this was interesting. I'd love to assemble an artificial
bee's brain.
Just a little bit of info.
John Bachman wrote:
>
> At 04:23 PM 3/6/00 , you wrote:
> >
> >>If you want to it be more able in an environment, give it more sensors, ants for example have touch sensors,
> >>light, temperature, and it can tell if its legs are stuck, which is basically the goal for most of our walkers and such, but I am curious how insects can know where to go back to like if a pile of sugar is on the ground, he will tell his little ant friends and they will go to it, same with bees. I haven't seen my photovores telling each other where the sun is lately
> >>
> >>Steve
> >>
> >>Ants leave a scent trail which allows the others to find the route to the sugar. Bees though, are really neat, they do a little dance.... When he (they're all he's) gets back to the hive, the individual bee that knows where the good flowers are does a dance. The dance consists of circles and body shakes that relate to the direction of the sun and the number of left turns and right turns relative to the sun. All the drones that are watching this dance are usually able to find the flowers that the original drone is dancing about.
> >>
> >>Pretty cool, but we're a long way from getting any of our bots to do that.
> >>
> >>
> >>Les
>
> True, but perhaps an achievable goal. If one of the bot functions is to find food and it succeeds, is it not inconcievable for it to communicate the location to other bots? Once a frame of reference is established (no trivial task) then instructions appropriate to the bots movement mechanisms could be communicated from one to another. This makes the group more efficient as some bots could be searchers while others could be gatherers - much like the bees.
>
> By the way, all worker bees are females, not males. The drones are only good for one thing and provide no other service. That is why the workers toss them out every fall to conserve food for the winter. They can make new drones any time they want.
>
> But the bee analogy is a good model for a society of bots. Each worker bee is genetically identical to the others but has different task assignments throughout it's lifetime. The group cooperates with one another and shares resources. This results in very efficient society. Hmmmm.
>
> John
--
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11437 Tue, 7 Mar 2000 07:26:15 -0800 [alt-beam] Re: MicroCore vs. BiCore "'beam@sgiblab.sgi.com'" Wilf Rigter
If damn PNCs are you only concern, you can add 2 diodes to any microcore to
make it PNCless.
The (recycled) PNCFREE microcore starts instantly and is always on alert to
automatically neutralize saturation.
Also note the simplified LED circuit: Since only one LED is on at one time,
the 4 LEDs can share one resistor.
wilf
<>
> -----Original Message-----
> From: David Perry [SMTP:davidperry@geocities.com]
> Sent: Monday, March 06, 2000 9:01 PM
> To: beam@sgiblab.sgi.com
> Subject: Re: MicroCore vs. BiCore
>
> my favourite reason for the bicore is you don't need no damn PNC! Sure its
> fun to play with a microcore, but it always mess up the circuit when i
> bump
> the resistors.
>
> David
>
Attachment: pncfree.gif
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