Cacti have many thorns that prick potential predators if touched or eaten.
Breathing tube of a mosquito larvae
The breathing tube is one organ of the respiratory system (along with the lungs in animals). The breathing tube allows for the intake of oxygen and the disposal of carbon dioxide.
Boy on trampoline
The boy would feel less secure if the safety net around the trampoline wasn't there. Humans have an innate need to feel secure in their environments.
Celery in pure water
The celery stalks take up the water and continue to live in this environment.
Annually Occurring Aerosol Features: Biomass Burning in Southern Africa from July to September 1986
Aerosol index over Africa from July 2, 1986 through September 7, 1986 as measured by the Nimbus-7 Total Ozone Mapping Spectrometer (TOMS)
High Resolution 2-D Numerical Simulation of Emergence of Magnetic Flux Through the Solar Atmosphere
This series of animations (animations 107, 1416, 1417, and 1418) show sheets of magnetic flux undergoing velocity perturbations. The conditions for each simulation are outlined within the video.
Great Zoom Mosaic - Zoom Out
This is a mosaic of zooms out of 20 different locations prepared to support a paper given at IEEE Visualization 2002. The locations are: Long Beach, CA; New York City, NY; San Fransisco, CA; NASA-Goddard, Boston, MA; New Orleans, LA, Salt Lake City, UT; Sabie River, Africa; Park City, UT, Chicago, IL; Mongu, Africa; Salt Lake City, UT; Amazon, Brazil; Los Angeles, CA; Baltimore, MD; Snow Basin, UT; Atlanta, GA; Washington, DC; Orlando, FL; and Seattle, WA. Using data from different spacecraft an
Great Zoom into Siberia
Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves fl
Biomass Burning over South America
Biomass burning is the burning of living and dead vegetation. It includes the human-initiated burning of vegetation for land clearing and land-use change as well as natural, lightning-induced fires. Scientists estimate that humans are responsible for about 90% of biomass burning with only a small percentage of natural fires contributing to the total amount of vegetation burned. Burning vegetation releases large amounts of particulates (solid carbon combustion particles) and gases, including gree
Family Planning Policies and Programs
Introduces issues and programmatic strategies related to the development, organization, and management of family planning programs, especially those in developing countries. Topics include social, economic, health, and human rights rationale for family planning; identifying and measuring populations in need of family planning services; social, cultural, political, and ethical barriers; contraceptive methods and their programmatic requirements; strategic alternatives, including integrated and ver
Problems in the Design of Epidemiologic Studies (Grant Writing)
Presents the methodologic and logistic problems involved in designing and conducting epidemiologic studies. Students participate in the preparation of a research protocol for a study in a human population. Offers an opportunity to critically evaluate the adequacy and scientific merit of research protocols, develop an appreciation of the ethical aspects of conducting research involving human subjects, and apply methods and principles learned in earlier (340.601 - 603) and current courses to speci
The Space Between Workshop, Fall 2004
This workshop explores how designers might become as sensitive to space as they are to objects. Through a number of projects and precedent studies, architectural design is studied in relation to the Space Between. The design process is studied in reverse, considering space first and objects second. This is not to imply that objects are not important, but rather that space is equally important.
Space Systems Engineering, Spring 2002
Space Systems Engineering (16.83X) is the astronautical capstone course option in the Department of Aeronautics and Astronautics. Between Spring 2002 and Spring 2003, the course was offered in a 3-semester format, using a Conceive, Design, Implement and Operate (C-D-I-O) teaching model. 16.83X is shorthand for the three course numbers: 16.83, 16.831, and 16.832. The first semester (16.83) is the Conceive-Design phase of the project, which results in a detailed system design, but precedes assembl
Objetivos1. Comprensión de los conceptos fundamentales relacionados con los medios de transmisión y la propagación de ondas.2. Conceptos básicos, similitudes y diferencias entre los campos electrostáticos y los dinámicos.3. Propagación de ondas en diversos materiales.4. Herramientas matemáticas necesarias para el análisis de medios de transmisión.5. Habilidades para el trabajo en equipo y el trabajo autónomo.6. Análisis y síntesis sobre los medios de transmisión más comúnmente em
How To Concentrate
This 2:30 video is an interview with an expert in this field. It reveals and explains what happens when a person is distracted and that concentration and focus are the most important things to remember. Also stressed is the need to keep the brain active in solving problems. An easy to follow video that can be of benefit to most all students.
Roberge 6.302 Lecture 07
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Blueberry Lavender Fizz
From juice bars to coffee bars to cocktail bars, the venues where Americans drink have become more diverse and a lot more inventive. The "bar chef" movement has put the spotlight on the cocktail provider and challenged modern mixologists to get creative. This Blueberry Lavender Fizz is a refreshing and unique beverage option to offer your customers. You can add a shot of gin to make this into a cocktail. Recipe at: http://www.ciaprochef.com/blueberries/recipe13.html
Passing Notes to Exchange Ideas
Lesson ObjectivePass notes to share ideas about a quotation and generate discussion. Questions to ConsiderHow does this strategy help students build on each other's ideas?What about this strategy helps students participate in the follow-up class discussion?How could you use this idea with a variety of concepts?
Namaqua Chameleon--An Overview
This short video gives excellent real life footage of a Namaqua Chameleon. Students will enjoy seeing the close up shots of this amazing lizard eating a big insect. This is a great resource to help build background knowledge and to help make real world connections between nature and the classroom. (Less Than 2 Minutes)
In this video, a teacher demonstrates how to subtract 8.6-5.43 on a white board. The problem is first shown horizontally, and the teacher rewrites it vertically. This is beneficial in showing students how to line up the decimals and to add zero after six in the first number. ( :36)