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Turquoise Lake, Colorado

Posted onAugust 11, 2017AuthornetjeffLeave a comment

A picture and panorama from our camping trip at Molly Brown campground on Turquoise Lake near Leadville, CO.

Lands End Observatory at Grand Mesa National Forest

Posted onJuly 24, 2017AuthornetjeffLeave a comment

This is a 180 degree panorama taken at Lands End Observatory in Grand Mesa National Forest.

Grand Mesa

Posted onJuly 24, 2017July 24, 2017AuthornetjeffLeave a comment

In July we camped in Grand Mesa National Forest.

: Ward Lake in Grand Mesa National Forest

Red-tailed hawk

Posted onJune 15, 2017June 16, 2017AuthornetjeffLeave a comment

We often see hawks circling, and there's a nest on the other side of the golf course. But this evening one decided to hang out on our gate for a while. I'm pretty sure this is a red-tailed hawk.

A computer built out of dominoes?

Posted onMay 18, 2014October 19, 2015AuthornetjeffLeave a comment

In the video below, a team built two computers out of dominoes. The first was capable of adding any two numbers between 0 (zero) and 7 (seven). The second computer they built was capable of adding any two numbers between 0 (zero) and 15 (fifteen).

The computer you are using right now, deep under the covers, does everything in terms of binary addition. What about the other operations you ask? Read More …

Circles & solids of constant width

Posted onNovember 17, 2013October 19, 2015AuthornetjeffLeave a comment

Kind of hard to explain, but try to imagine ball bearings that aren't spheres. If you have the slightest interest in engineering or math, definitely worth the 10 minute video.