Subject:
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RE: Lego & Grade 4 Science Projects ...
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 16 Dec 1999 19:42:59 GMT
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Original-From:
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Reno Pittner <renop@&Spamless&home.com>
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Viewed:
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807 times
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Lets go for a little extra credit. Have the clothes line stop when it locates that
black leather pant suit. :) using the light sensor of course.
-----Original Message-----
From: Matt Silver [SMTP:silverm@tech-center.com]
Sent: Wednesday, December 15, 1999 9:58 PM
To: lego-robotics@crynwr.com
Subject: Lego & Grade 4 Science Projects ...
Lego to the rescue for my daughter's grade 4 science project ...
The requirement was use pulleys and gears and make something, but it cannot
be a crane, because that is the example the teacher used.
I was handed a design for a clothes line with a crank handle, to be build to
scale for doll clothes.
Once we got by the how are we to make pulleys and gears problem (pointing to
the Lego Barbie furniture, complete with rotating fans and serving tables
Did you know the large pulley can hold 4 Barbie drink glasses?)
A simple clothes line was made by my daughter and class partner in 10
minutes.
Adding a small gear train took a little longer. I made them read the
instructions for motor kit on gear trains.
So 30 minutes later they added the gear train with crank handle and thought
they were finished.
I found resisting a bid tough ....
I pushed a motor, cable and battery box their way. Now the clothes line has
a snap in power unit.
Then came the wise cracks ....
an olden days clothes line that you just pull
a mechanical one with a crank
a 90's one with a motor
What can we do for a millenium one ?
So I pushed RCX across the table with a rotation sensor.
The two girls have started to spec out the program of how get RCX to run the
clothes line to the end then stop, wait a while, then reverse and come back.
The next hour was spent with the two rehearsing the demonstration and
explanation of how it works.
They plan to add RCX on the weekend.
The project is due on Monday.
And just to top it off, another snide comment was that the boys will die
when they see Kelly (Barbie's little sister) using her computerized clothes
line.
Ya, this is exactly why I really bought the kids RCX ... to make Barbie's
life more complete.
Just to let you know that we aren't totally off balance, my younger son & I
mixed RCX with Crazy Lego Contraptions (really cool set) Ping Pong Ball
shooter to automate loading and shooting ping pong balls from the deck of
his pirate ship.
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