Category Archives: Teaching and Learning

Making a bow with primitive tools

Posted on March 28, 2016 by robertwilkie

Pretty impressive video to watch.  The making an axe is too. http://sploid.gizmodo.com/making-a-bow-and-arrow-without-any-tools-is-damned-impr-1766733260 axe http://sploid.gizmodo.com/making-a-stone-axe-without-any-tools-is-really-impressi-1713239525

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Make a simple crab trag with bike rims

Posted on March 28, 2016 by robertwilkie

Every year I will buy some cheap crab traps to bring with me.  This build looks a lot nicer.  But the author didn’t point out a good source of netting (most stuff I google comes up with decorative).  Either way … Continue reading →

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Build your own EMP generator

Posted on March 23, 2016 by robertwilkie

Only a little one that you can use to light up a bulb nearby.  The author originally bought one for $18, its a simple build so he made one himself for less.  Me…I think I would just buy one for … Continue reading →

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Make a foam board kayak on the cheap

Posted on March 14, 2016 by robertwilkie

HAHAHAHA… OK I am actually thinking about this.  The author basically uses a sheet and 1/2 of 1 inch foamboard with an old sheet, Great Stuff/gorrilla glue/tite bond II to hold it together, and outdoor paint.  Figure $30 in materials.  … Continue reading →

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Water only fog machine

Posted on March 14, 2016 by robertwilkie

This is on the list to build for Halloween.  It only needs water and looks pretty good.  But…the 12 jet pond fog machine it uses (ultrasonic water vaporizer) runs about $200.  You can get a 1 jet with LEDs for … Continue reading →

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Make a snowboard from a sheet of plywood

Posted on March 3, 2016 by robertwilkie

HAHAHAHA…OK it does look nice, and I like how the author “bend” the board with water and weight to give it a bit of a curve.  Could be something fun to do with kids.   My 2 cents, you need some … Continue reading →

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Lifting stuff with straws

Posted on February 4, 2016 by robertwilkie

The video at the bottom is insteresting to watch the guy use a cup and straw to make suction that holds a board he lifts. http://www.wired.com/2016/02/psst-you-could-probably-lift-a-car-by-sucking-through-a-straw/

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Build a snowblock box

Posted on January 29, 2016 by robertwilkie

Nice build to make a simple box with one board to make igloos.  I had to go to the second site to find out what the screw in the middle was for.  Til I realized its the “bottom” of the … Continue reading →

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Make a shake generator

Posted on January 27, 2016 by robertwilkie

Clever build.  Cheap too, this would be a good project with kids and intro to electricity. http://www.instructables.com/id/Shake-Generator/

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Nice idea to teach kids about solar energy (Thermal)

Posted on January 25, 2016 by robertwilkie

Nice idea, the students build some simple solar thermal heaters, and record the results of heating up water. http://www.instructables.com/id/Kids-Solar-Water-Heater/

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