Recent Posts
I Dislike My Kindle’s Coefficient of Friction
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In my last post, I talked about one of the things I like most about my new Kindle - the eInk screen. And, as I'm finishing up reading a novel ... more»
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I Like My Kindle’s eInk
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I just got the most recent version of Kindle and really like using it. There are various reasons for it, but one of the best reasons, in my opinion, is ... more»
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Pi Day Pie Fight
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We've just finished a fantastic Spring Break at the Children's Museum of Houston! On the first Sunday (March 14th), we celebrated Pi Day (3.14 = 3/14 = March 14th). And what ... more»
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Properties of Matter – Matter Factory!
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What is matter - anything that has mass and takes up space. Everything all around us is made of matter. But how do we categorize different types of matter? Based ... more»
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Air Cannon
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How can you play "William Tell" with more safety than a bow and arrow? How about a hand-held Air Cannon? Sure, you can buy one for about $15, or you ... more»
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Economics 101 – Supply and Demand
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Welcome to Kidtropolis, the Children's Museum of Houston'scity by kids, for kids where the motto is "Your Voice, Your Choice." Kids are in charge of everything - they make governmental ... more»
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Answer to Yesterday’s Word Problem
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Here's the answer to yesterday's word problem:
a) Approx. total length will be about 22.65 miles or 36.24km
250lbs x 1,640 bands/lb = 410,000 bands
410,000 bands x 3.5in/band = 1,435,000 in
1,435,000in ÷ ... more»
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Breaking a World Record
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Here's a little word problem to get everyone thinking this fine morning!
Currently, Gettysburg Elementary School in Clovis, California, USA holds the world record for the longest rubber band chain at ... more»
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Science Short – Smelly Balloons
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I'm back with a quick science experiment! Ever wonder why latex balloons deflate? Find out with Mr. O! You'll need:
a latex balloon (about 11" or so works well)
a small bottle ... more»
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Rubik’s Cube solved by…Legos?
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Last month, I posted an entry about how the Rubik's cube is turning 30 this year and, with it, a video of the world record for the fastest solving of ... more»
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