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Tim Peterson
109 followers -
Land Surveyor and "internet enthusiast"
Land Surveyor and "internet enthusiast"

109 followers
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Because of the teachers' strike
#bced
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Jenga Cat has no patience for your playing style. Jenga Cat

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this looks cool. a winch stretched across the lake pulling the water skier across instead of a boat
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16/05/2014
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Two women brought their grandfather's box sextant into the office to ask what it was. Pretty good shape for something 150 years old.

It packs into a cylinder, but an eyepeice slides out and the coloured filters pivot.
You sight the sun and some other point. Then turn the large knob til they line up and the light colored arm moves. There's an attached magnifying glass and a vernier scale for reading small fractions of an angle.
You can then look up the time and the date in a solar almanac and calculate your latitude. With accurate time measurements you can even tell longitude.
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2014-03-21
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This is usually the clearest, least "look at how counterintuitive quantum mechanics is" version of this explanation I've ever seen. 

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Oh. My. God.

Watch this.

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interesting concept
We built a "train detector" using a Raspberry Pi connected to a Ultrasonic sound distance sensor, which sends the distance to a flash over a socketserver, triggering a video when the train arrives.

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Michael is getting pretty good at cruising. Next up is walking, but he doesn't seem too interested in that
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I went to McKee peak on Friday. Totes had permission from the owner.
I got to drive the jeep on the trail and learned about not hitting boulders with the transmission. Which I didn't do once.
Did anyone else know there was a cave right above Sandringham? It would be incredibly hard to get into
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25/01/2014
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