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Medium 9781442267794

Display Dialogues and Pedagogies

Collections Altamira Press ePub

Abstract Deliberates on the various possibilities for educational and conversational interactions at the interface of an exhibition, shaped and mediated by curators, including mid-twentieth century experimental shows produced by Jermayne MacAgy (Goldsmith), working with structures of inclusion/exclusion as part of the curatorial medium (Uchill), and the display of fake artifacts based on familiar myths to encourage dialogues and educational activities with an audience (Filipovic).

Meredith Goldsmith

Visual Studies, University of California—Irvine

This paper introduces readers to Jermayne MacAgy (1914-1964), an American curator who practiced between 1941 and 1964. Though there are many facets of her career worthy of analysis—she was one of the first women to earn a Ph.D. in art history in the United States; in 1943 she became the youngest museum director ever appointed in the US—I focus on her eclectic exhibitions.

MacAgy was very involved in the Modern art of her time and the concepts of objecthood associated with it. She was an early supporter of Mark Rothko, she was the first to show Joseph Cornell’s films, and she mounted early group shows of Abstract Expressionists. Equally interesting to MacAgy were works associated with anthropology (a field she considered to be more Modern than art museums), and she curated stunning exhibitions of objects from Central and South America, West Africa, New Guinea, and elsewhere.

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Medium 9781449368104

7. Light

Tero Karvinen Maker Media, Inc ePub

A robot follows a complicated path, seemingly without difficulty. A closer look shows a black line on the floor for the bot to follow. Later in the evening, backyard lights light up automatically when darkness falls.

Because color is reflected light, sensors can detect the color of a surface. With some creatively applied tubing, the direction of light can be detected, too. And if fire is the thing for your bot, there is a sensor for flame.

Do you want to measure human movement with infrared (IR) light? See Experiment: Burglar Alarm! (Passive Infrared Sensor). Need to know if an object is nearer than a given distance, using IR? See Experiment: Detect Obstacles With Infrared (IR Distance Sensor).

Flames emit a range of infrared light not very common in ambient light. The KY-026 flame sensor reports the level of infrared light with a change of resistance (Figure 7-1).

The code you’ll write for flame detection is the same code you’d use for an analog resistance sensor: you use analogRead() to read the voltage of a pin.

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Medium 9781574414714

“The Aurora Airship Crash of 1897”

Edited by Kenneth L. Untiedt University of North Texas Press PDF

THE AURORA AIRSHIP CRASH OF 1897 by Jo Virgil

Sometimes, the draw of a legend is simply that we wish it were true. And sometimes that wishing muddies the water so thoroughly that it’s hard to separate fact from, well, from An Enticing

Legend.

But even a tale as bizarre as the Aurora Airship Crash of 1897 needs nuggets of truth to keep it alive for more than a century. The more deeply that historians and researchers dig into the story, the more evidence they unearth, both for proving the story to be a hoax, and for confirming that something very odd did happen that night.

As the story goes, the night sky of April 17, 1897, in the tiny

Wise County, Texas, town of Aurora was filled with stars and the sound of crickets. While nearby Fort Worth had a booming population of almost 25,000 residents, the tiny town of Aurora had almost ceased to exist. The town’s peak population of somewhere between 1,000 and 3,000 residents had begun to dwindle to just a handful of families after an epidemic of spotted fever, unrealized plans of a railroad through town, a boll weevil infestation, and a major fire that destroyed several buildings. The post office was about to shut down, businesses had closed doors, and people had moved on. That spring night in the tiny, barely surviving community was quiet and dark.

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Medium 9780596809560

10. Building and Using Simulators

John M. Hughes O'Reilly Media ePub

Is that some kind of a game you are playing?

So far in this book weve covered the basics of programming in Python, reviewed some essential electronics, and explored the tip of the iceberg of control systems theory. Weve covered a lot, to be sure, but there is still one major topic left before we take on the challenges of actually connecting a computer to an instrument or a control system and turning it loose: simulation.

In engineering, simulation can be applied to many things, from a simple device to an entire complex system. In electronics engineering, circuit simulations are used to explore and analyze analog and digital designs well before an IC is fabricated or a soldering iron comes into play. Systems engineers build complex simulations of industrial systems to evaluate various control strategies and process flow models long before the pipes are laid out and the conveyors are installed. Military and commercial pilots are trained in realistic aircraft simulators where procedures and techniques can be learned and practiced with no risk to an actual vehicle or the people in it (or on the ground).

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Medium 9780596002411

23. OLE Automation

Nathan Patwardhan O'Reilly Media ePub

The Win32::OLE modules give Perl support for OLE automation. OLE automation is a Microsoft technology based on COM that allows objects created by another application to be used and manipulated by a program through a common interface.

The application (or DLL) that implements the automation interface is called the automation server. The application that creates and uses the interface is called the automation controller or automation client . Many popular applications expose their objects through automation. Microsoft Word, Excel, and other Office applications can be used as automation servers. Automation is widely used by Active Server Pages (ASP) and CGI scripts to access data repositories, perhaps via ActiveX Data Objects (ADO). You can even use automation to control many development environments and editors.

To create an automation object, the server needs to be registered on the system. This is typically done by the server's installation program, but can be done manually using a utility such as regsvr32.exe. This involves adding entries to the system registry to tell COM how to find the component, the types of interfaces it provides, the type of server it is, etc. You should be able to find the object model, available methods, and properties of the interface in the documentation provided by the application. This object model can be used via Perl's object syntax to create and control objects in your programs.

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