Building a tracked scooter

A fellow named Bob builds a tracked personal vehicle. He calls it sort of a Segway, but it looks like sort of a scooter to me hence my post title. He doesn't show his design drawings, but he does cover his manufacturing methods and the steps he takes. Not everything works the way he envisioned, and so he does a lot of minor changes to get it all to work. The four videos cover the entire process of building, and then riding, the thing.

 

Paintings of fire

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Like waterfalls, fire is hard to paint because its nature is that it is never static, rather it is ever changing. That is the fascination of sitting by a campfire. Still, artists have taken their brushes to it and tried to capture it essence. Below are campfires, hearths, wildfires, house fires, and even a dumpster fire. Enjoy.

Nunca vas a comprender

I'm late today. So, get ready for a tardy weekend with Rita Payés.

 

Building runways

This video discusses the problems and considerations of airport runway design and structure. The difference of the weight, due to fuel, of an airplane taking off and landing had never occurred to me. It is an interesting video.

 

Philip Norman's paintings

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Philip Norman (1842–1931) was an English artist who focused on old London, to document it before it disappeared. His paintings were frequently accompanied by historical information about the buildings. His palette is rather muted as he is primarily interested in detailing the old buildings.   

Philip Norman

Dr. Feelgood

Get ready for a sawbonified weekend with Davina and The Vagabonds.

 

The WOW signal

1977 Ohio State University's Big Ear radio telescope picked up a very unusual signal that has come to be known as the WOW signal. It was extremely strong for cosmic radiation. Further, it was narrow band. Normal cosmic radiation is broadband, that is spread over several frequences, but the WOW signal was confined to a very narrow band.

It has long puzzled astronomers because there is no known source for such a signal. Terrestrial interference was considered and discarded, and other natural possibilities have also not held up.

Naturally an alien source has been a favorite of many. I'm not sure about that, I've watched enough 1950s sci-fi movies to know that aliens are always warning humans to knock-it-off before we create a super weapon that blows up the universe. It could be a declaration of war before they come to Earth to stomp us flatter than a pancake to save the cosmos. You never know.

Anyway, this video purports to have explain a natural cause for the WOW signal. They claim that it clears it all up, but we've heard that before.