Glidden's Patent Application for Barbed Wire
This lesson presents the drawing and description that helped Joseph Glidden, a farmer from De Kalb, Illinois, win a patent for barbed wire in 1874. Glidden's design remains today the most familiar style of barbed wire. This site also examines the considerable impact of barbed wire on the economy, society, and politics in the West.
Exercise in Register and Style
Exercise for students concerning the idea of writing in a specific register and style for a specific readership.
Earth Rotation from Galileo Imagery: 3600 x Real-Time
This animation is one in a series created to show an accurate representation of the Earths rotation at different temporal resolutions. The animation is created from images taken by the Galileo spacecraft during a close pass of the Earth on December 11-12, 1990. The animations range from real-time, in which no rotation can be perceived, to 3600 times real-time, in which both the Earths rotation and cloud motion can bee seen. The series also includes an animation in which the Earths rotation has b
Blefaroplastia del Reborde Orbitario
Scenes in Spanish of plastic surgery of above the eye.
"Quasi-Balanced Circulations in Oceans and Atmospheres, Fall 2009"
" This course introduces the students to dynamics of large-scale circulations in oceans and atmospheres. Basic concepts include mass and momentum conservation, hydrostatic and geostrophic balance, and pressure and other vertical coordinates. It covers the topics of fundamental conservation and balance principles for large-scale flow, generation and dissipation of quasi-balanced eddies, as well as equilibrated quasi-balanced systems. Examples of oceanic and atmospheric quasi-balanced flows, compu
Listening, speaking, grammar: Wo ich wohne... wohne ich gerne!
You practice your speaking skills in connection with describing a house and the plural forms of nouns.
Postboxes in postcode IP19
A collection of postboxes in postcode IP19
Cambridge and First Time Volunteering
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2.3 Movie 7 - Jupiter's High Latitudes Jupiter's High Latitudes This mo
Jupiter's High Latitudes
Postboxes in postcode IP13
A collection of Postboxes in Postcode IP13
Postboxes in postcode IP12
A collection of postboxes in postcode IP12
Saturday Night on the Range: Rural Life in World War I Era Montana
We often like to imagine rural life in the past as timeless, "traditional," and in some way simpler and more authentic. Yet, rural life in the years around World War I, while sometimes recalled as simpler, could often seem very much like life anywhere else. In this interview, conducted by Laurie Mercier in 1982 for the Montana Historical Society, Tom Staff remembers how Montana farmers took other jobs to supplement their incomes. Here he described how the road crew he worked on left camp for dan
Induction of Nitrate Reductase in Plant Shoots
A laboratory exercise that uses colormetric assay and corn seedling shoots to study the induction of enzyme activity by a substrate.
Small Regulatory RNAs May Sharpen Spatial Expression Patterns
The precise establishment of gene expression patterns is a crucial step in development. Formation of a sharp boundary between high and low spatial expression domains requires a genetic mechanism that exhibits sensitivity, yet is robust to fluctuations, a demand that may not be easily achieved by morphogens alone. Recently, it has been demonstrated that small RNAs (and, in particular, microRNAs) play many roles in embryonic development. Whereas some RNAs are essential for embryogenesis, others ar
Pendennis Castle N900020 PENDENNIS CASTLE, Cornwall. c.1894. Reconstruction drawing of Half Moon Battery. Men working in the cartridge store by Ivan LAPPER.
PENDENNIS CASTLE, Cornwall. c.1894. Reconstruction drawing of Half Moon Battery. Men working in the cartridge store by Ivan LAPPER.
Wireless Sensor Networks for Ecology
Field biologists and ecologists are starting to open new avenues of inquiry at greater spatial and temporal resolution, allowing them to "observe the unobservable" through the use of wireless sensor networks. Sensor networks facilitate the collection of diverse types of data (from temperature to imagery and sound) at frequent intervals -- even multiple times per second -- over large areas, allowing ecologists and field biologists to engage in intensive and expansive sampling and to unobtrusively
Sleeping Beauty Invades Rat's Genome
Knockouts are not just for Mice anymore. Aron Geurts and Howard Jacob from the Medical College of Wisconsin talk about their plans for creating transgenic rats using the Sleeping beauty transposon. Coming out of work pioneered by Colin Bishop's lab, Geurts and Jacob describe how the Sleeping Beauty system can be used to make transgenic rats and their plans to make the phenotype data from these rats available via the MCW PGA website (http://pga.mcw.edu) and the strains themselves accessible via a
What is a Profile?
Using TIG profiles as an entry point, this activity explores a broader theme of "profiling" to enable students to examine how they present themselves, as well as cultural perceptions and biases within themselves, their peers, and their community. Students will read TIG profiles and Member Stories, with the objective of better understanding others' perspectives to critically reflect and write about their own identity.
Not in Our Town Northern California: Staging a Response to Hate - Newark, CA
"Not In Our Town Northern California: When Hate Happens Here" looks at five communities that are dealing with hate violence. This Educator Guide addresses events that took place in Newark. Students from Memorial High School were planning a presentation of "The Laramie Project" for their fall play when they learned that one of their peers, a transgender student, had been murdered in a crime similar to the one they were exploring on stage. This Guide includes discussion ideas and activities relate
A presentation of Monopoly, its characteristics and influences.