Newspaper Pictorials: World War I Rotogravures
This site presents images published from 1914-19 by two New York newspapers. The images, produced by a new rotogravure printing process, show events of the war alongside news and advertisements of the day. Essays discuss the origin of the war, costs of the war, President Wilson's 14 points, the armistice, military technology, the sinking of the Lusitania, pictures as propaganda, and the rotogravure process. A World War I timeline is included.
An introduction to teacher research
Every day, teachers develop lesson plans, evaluate student work, and share outcomes with students, parents, and administrators. Teacher research is simply a more intentional and systematic version of what good teachers already do.
Marine Microbial Ecology
This image-rich website from the Australian Antarctic Division's Biology program describes its research in marine microbial ecology. It includes an introduction of microbial ecology and microbial processes, followed by information about the research project. Field sampling, microscopy, flow cytometry, pigment analysis, flourometry, HPLC, culturing, feeding experiments, and the research staff are each discussed using vivid imagery. Links are provided to related websites.
Single-Celled Organisms Unit
This Project Oceanography lesson plan (PDF) explores the symbiotic relationships of single-celled organisms. In this activity, students will compare and contrast three types of symbiotic relationships, describe the relationship between zooxanthellae (a dinoflagellate) and coral, and explain the effects of nitrogen-fixing bacteria on their symbiotic partners. It begins with an introduction to symbiotic relationships, the dinoflagellate/coral system, and cyanobacteria, and then features an interac
The Olympic Region Harmful Algal Blooms
This is the website of the Olympic Region Harmful Algal Bloom (ORHAB) partnership, which was organized to develop collaboration and cooperation among federal, state and local management agencies, coastal Indian tribes, marine resource-based businesses, public interest groups, and academic institutions. The ORHAB partnership investigates the origins of blooms of toxic algae, monitors where and when the blooms occur, assesses the environmental conditions conducive to blooms and toxification of int
When teachers don't understand
Teaching should be informed not only by the content of the discipline but also by the lives of the students.
ATP sünteesi mõjutavad tegurid
TÜ Loodusteadusliku hariduse lektoraadi vastavatel kursustel (Loodusteaduste visualiseerimine) osalenud õpetajate koostatud interaktiivsed mudelid bioloogiliste protsesside tundmaõppimiseks. Kuigi mudeleid ei saa lugeda lõplikult viimistletuks, on nad õppeprotsessi visualiseerimiseks asjakohased: kasvõi ideede saamiseks. Kasutajal on soovitav fail enne oma arvutisse salvestada ning vajadusel täiendada.
Cacti have many thorns that prick potential predators if touched or eaten.
One reason why ticks are considered to be arachnids is because they do not have antennae like insects do. Ticks suck blood from animals and are sometimes difficult to remove from the host's skin.
Female Artemia closeup
Close-up full body view of a female Artemia under one quarter-inch in size.
The San Joaquin kit fox
San Joaquin kit foxes are nocturnal and hunt small mammals at night. They make dens and stay in them during the day to conserve water and energy.
EPTOMS Ozone (7-26-96 - 12-4-00)
This animation shows the total ozone as measured by Earth Probe TOMS since the earliest measurements by that instrument. Days on which no data was taken appear as blank.
Global Methane Isosurface Wave
An animation of a three-dimensional isosurface of global methane in the atmosphere evolving over time, from a global data assimilation model. The globe of the Earth starts out opaque, then becomes transparent in order to more clearly see the structure of the isosurface. The isosurface exhibits wave breaking in the southern hemisphere.
The Middle East Dust Storm
Dust storms are an every day occurrence in Saudi Arabia. This storm is of an unusual size.
Landsat Witnesses the Destruction of Mesopotamian Ecosystem
In one of the greatest ecological disasters of our time, the ancient marshlands of Mesopotamia are systematically being converted to dry salt flats as a result of human mismanagement of the regions water resources. Landsat satellite imagery reveals that in the last 10 years, wetlands that once covered as much as 20,000 square km in parts of Iraq and Iran have been reduced to a small fraction of their original size. The authors of a new report released by the United Nations Environment Programmes
Hurricanes as Heat Engines
As water vapor evaporates from the warm ocean surface, it is forced upward in the convective clouds that surround the eyewall and rainband regions of a storm. As the water vapor cools and condenses from a gas back to a liquid state, it releases latent heat. The release of latent heat warms the surrounding air, making it lighter and thus promoting more vigorous cloud development.
Hurricane Hernan, September 1, 2002
Hurricane Hernan located 625 miles west-southwest of the southern tip of Baja California. Hernan has maximum sustained winds of 130 knots with gusts to 160 knots. The overall structure of the storm is shown in this animation with rain amounts being shown through color. Yellow represents 0.5 inches of rain or more, green shows 1.0 inches of rain and red shows 2.0 inches or more.
Digital Earth Workbench: 3D Hurricane Luis
The Digital Earth Workbench is an interactive application that runs on a SGI Onyx Infinite Reality system and is controlled by an Immersive Workbench, tracked stereo glasses, and a tracked wand. The application allows an unprecedented freedom to roam georeferenced datasets at multiple resolutions and timescales. This animation is one of a series of direct screen captures of the application in operation. The occasional menu appearance denotes direct intervention by the operator to add or delete d
Arctic Ozone Hole from Earth Probe TOMS: February 1, 1997 through May 31, 1997
Ozone measurements from Earth Probe TOMS for February 1, 1997 through May 31, 1997 showing the formation of an Arctic ozone hole
Arctic Ozone from TOMS: September 1, 1999 through November 30, 1999
Total ozone over the arctic for September 1, 1999 through November 30, 1999, as measured by Earth Probe TOMS