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Vue lecture

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WaningCrescentMoonday

Now, roughly.

That’s what it says at MoonPhase.today

Specifically, 26%.

I’ll consider them unreal if they’re not at IIW.

The UOR Foundation has plans to… Well, I can’t copy and paste the text, so here’s a screengrab:

I’ll say not. Quite.

AM I? | A Documentary About AI Consciousness.

Ever notice the groovy ditches in tidal swampland?

This swamp is under three AM broadcast towers south of Boston, built in 1940, when AM radio listening was at high tide. They were built for WNAC/1260. It’s now WBIX, known to Portuguese speakers as Nossa Radio USA. The towers were also used by WMEX/1510 until that station shut down on the last day of September. I shot it on approach to Logan in 2011.

It’s called “grid ditching,” and is explained here:

Grid Ditching

The grid ditch system still evident on our salt marshes today, were dug by hand between 1928 and 1934. The primary purpose of this era of ditching was to put as many people to work as possible, as this was the time of the great depression. No entomological studies were conducted in conjunction with this ditching effort; mosquito control was a secondary consideration at best.

However mosquito control was achieved by default as practically every square inch of marsh was drained by the extensive project. Some engineering studies were done to determine where and at what intervals ditches were dug. Ditches were dug in straight rows by hand with sod saws and two man shovels. In 1934, at the peak of this ditching effort, over 11,000 men were employed digging ditches and when completed nearly 3,000 linear miles of salt marsh ditch were dug in Massachusetts alone.

Virtually all salt marsh in New England was ditched with the exception of one marsh in Rhode Island. Later in the late 1940s and early 1950s soldiers returned home from World War II. Housing shortages were a big problem in the more populated areas particularly in and around Boston. A generation of young families, eager to get their lives back on track migrated to the north shore of Massachusetts to start new lives.

This migration coincided with the degradation of the grid ditch system created in the 1930s. These ditches had not been maintained and now produced far more mosquitoes then they had initially eliminated. By many accounts it was so bad some considered the area to be almost uninhabitable. A few local programs were established to try to reopen the ditches but it was impossible to duplicate the labor force that had originally created the ditches.

In 1958, a grass roots effort, fueled by public demand for relief resulted in legislation establishing the Essex County Mosquito Control Project. For reasons unknown the project was not formally funded until 1965. Equipment was purchased and a major effort was launched to reclaim salt marsh ditches.

Salt Marsh Ditch Maintenance in Northeast Massachusetts

In the late 1970s, Walter Montgomery was an equipment operator for what was then, the Essex County Mosquito Control Project, ECMCP. Montgomery’s primary duty was to maintain the extensive salt marsh grid ditch system, excavated for the most part, between 1928 and 1934.

Montgomery recalls using an implement known as a scavel plow; this was a large wedge shaped device mounted under a wing plow and could be attached to the front of a tractor or sometimes towed behind. A scavel plow wedge was basically constructed to the original ditch dimension. The wedge would be dropped into the ditch and the tractor either pushed or pulled it along. As the wedge peeled spoil out of the ditch the wing plow would roll the spoil into furrows approximately six feet wide on both sides of the ditch. These furrows of spoil were then either run over to flatten them or plowed off the marsh.

On a productive day Montgomery recalls completing two or more miles of ditch maintenance but even at that rate maintenance of hundreds of linear miles of ditch was an endless endeavor. It was Montgomery’s experience that freshly maintained ditches were really only effective for about two years before requiring additional maintenance.

Typically ditches would become blocked on the high marsh and previously drained salt pannes would often reestablish. Montgomery observed that the open water areas of these pannes or ponds didn’t have mosquito larvae but the grassy sheltered areas around the edges or isolated depressions adjacent to the ponds, supported mosquito larvae.

Montgomery’s observations further supported his belief that continued maintenance of the grid ditch system was not productive and furthermore there had to be a better way to manage salt marsh mosquito populations.

That is from a .pdf titled MASSACHUSETTS MOSQUITO CONTROL OPEN MARSH WATER MANAGEMENT STANDARDS MAY 2010. It is worth continuing to read, if mosquito control is your jam.

Alas, as you may gather by now, everything is my jam.

Seems Flickr is having an outage of some kind:

Pages load. Notes load. Text loads. Photos don’t.

 

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Aviation vs. Eclipse

Contrails in the stratosphere, smearing sideways into broad cloud cover.  This view is toward the place in the sky where a full solar eclipse will happen a few hours later.

Contrails form behind jet aircraft flying through the stratosphere. Since high-altitude aviation is happening all around the earth more or less constantly, planes are painting the sky everywhere. (Here is one time-lapse. And another. And one of my own.)

Many contrails don’t last, of course, but many do, and together they account for much of the cloud cover we see every day. The altocumulus, altostratus, and cirrus clouds that contrails produce are now officially recognized as homogenitus and homomutatus, which are anthropogenic: owing to human activity.

And today, Eclipse Day, Delta is offering to fly you along the path of totality. Others too? I don’t know. I’m taking a few moments to write this before we walk up to our hilltop cemetery to watch the eclipse for over four minutes, thanks to our lucky location near the very center of Totality.

I’m curious to see and hear contrail reports from others now awaiting their few minutes out of the sun.

1:14pm—The moon’s shadow made landfall in Mexico a short time ago. Here in Bloomington, the sky is well-painted by contrails. Mostly it looks like high-altitude haze, but believe me: if it weren’t for commercial aviation, the sky would be solid blue. Because the contrails today are quickly smeared sideways, losing their form but not their color.

5:00pm—Contrails were aplenty, and a spread-out contrail did slide in front of the sun and the moon…
eclipse

but it was still a spectacular sight:

eclipse

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