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erotosthenes

Don’t believe Neil Tyson or B.o.B. Calculate the Circumference of Earth with Your Pen Pall.

OK, so it has come to my attention that the great Neil deGrasse Tyson has engaged on twitter with a recording artist called B.o.B. about whether the Earth is flat or spheroidal. Which is simultaneously the reasons why love and hate Twitter. I won’t go into why B.o.B. thinks what he thinks, or how he […]

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How a Nerf Blaster Works

How a Nerf Blaster Works

When I was a kid I spent a bit of time in detention. I don’t remember why, it’s not like I was a hooligan or anything, but kids will be kids. Anyway, I remember one time sitting around missing recess, not being supervised and getting tired of counting ceiling tiles. So I picked up a little […]

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Balloons in the car defy physics

I drove to work with two helium balloons in my car, WHAT HAPPENED NEXT BLEW MY MIND!!! When I accelerated, the ski gear heaped in the cargo hold sloshed to the back. But the balloons sloshed to the front hitting me in the head.  When I hit the brakes, the helium balloons went to the […]

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Exploring Green Lake

Backpacking with kids

When John Muir went out to explore the Sierra Nevada mountains more than 100 years ago, he did it on foot carrying as little food as some tea and biscuits for multi-day treks over high alpine peaks. He slept under the stars, without a tent, without a sleeping bag, without polarguard delta or primaloft or […]

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Origin Myth

So we were reading The Hobbit (Michael Hague Illustrated version), my son and I. My dad read it to me when I was a boy. He loved the book. The elements of adventure, courage and fantasy drew me in as well. My boy just loves dragons. The Michael Hague illustrations are what drew him in, […]

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Maurice Sendak Google Doodle

Maurice Sendak Google Doodle

I usually don’t post, or really care about Google Doodles, but this one is too good not to stop and take a look. Google honors Maurice Sendak with an nice animated doodle. He was born on June 10, 1928 — 85 years ago. Maurice Bernard Sendak was an American illustrator and writer of children’s books. […]

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How Bikes Are Made

My brother in law sent me this 17 minute video from 1945 showing the making of the classic Raleigh steel bicycles in England. What’s amazing about industrial manufacturing that you see when watching videos like this and the Science channel show, How It’s Made, is how, despite the heavy use of machinery, and automation, everything […]

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Book Haul: The Big Bad Book of Beasts by Michael Largo

I have always been a fan of encyclopedic books. Books that provide short digests of information that you can burn through quickly and gain enough information to sound interesting at a party, but not so much that you have to write things down and read a ton of footnotes. The book I featured in my […]

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Science Deniers and Their Straw Men

Ok, this post isn’t going to be interesting to your kids. Except for when you teach them to identify how others will try to misrepresent common sense in debate to win an argument. In the clip below Texas congressman Joe Barton reframes the argument of human caused climate change in absurdity. This post isn’t about […]

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One Man Bands

I’ve been tracking this phenomenon on YouTube for a few weeks since I saw a great one man band video pop up on Laughing Squid or some similar blog. I’ve always loved the one man band for the sheer entertainment value of a performer talented enough to do more than one thing at once to […]

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