A Correlated History of Earth
This page describes a geologic timescale poster available for purchase. The site also contains an interesting essay: "A Galactic Orbit Model for Periodic Mass Extinction," discussing how clusters of impacts could cause periodic mass extinctions.
The HPLC Doctor
This site provides HPLC troubleshooting tips. It covers common separation problems such as peak fronting or tailing and split peaks and suggests solutions. This site will be most useful for students and practitioners who already have some background knowledge of separation theory. It will be especially helpful for laboratory or research students who are developing a new separation method or are encountering problems with their chromatographic experiments.
Introduction to Chemical Equilibria
An equilibrium-oriented web site that presents the concepts of chemical equilibria. It presents notes on general equilibrium topics that include reversible reactions, reaching equilibrium, dynamic equilibrium and factors that can affect equilibria. The explanations are brief, but generally complete. In addition, the site has some self-quiz questions.
SGE Chromatography Products - Troubleshooting and Training
A guide to troubleshooting chromatography problems, especially GC. There is also material on increasing column efficiency and reference material on properties of stationary phases.
Middle School Portal: Math and Science Pathways (MSP2)
In this activity, students learn about the body mass index (BMI) formula and how it can be used to determine health risk. The activity is part of the Figure This! collection of 80 online mathematical challenges emphasizing real world uses of mathematics. The activity web page contains links to a solution hint, the solution, and to other math questions, such as how the BMI formula can be written to show weight in kilograms and height in centimeters. Students and their families are challenged to u
This document examines energy consumption. The reading will explore energy consumption or energy usage in the United States and discuss specific topics such as (1) Who uses energy?, (2) Homes and commerce, (3) Heating and Cooling, (4) Lighting, (5) Appliances, (6) Appliance efficiency ratings, (7) Payback period, (8) Industrial sector, (9) Petroleum refining, (10) Steel manufacturing, (11) Aluminum Manufacturing, (12) Paper manufacturing, (13) Chemical Manufacturing, (14) Cement Manufacturing, (
Light, Matter, and Energy
This fun Web site is part of OLogy, where kids can collect virtual trading cards and create projects with them. Here, they are introduced to Einstein's life and work with four engaging and kid-friendly areas. Equation Invasion, a look at the world's most famous equation about the relationship between energy and mass. Web Master, the scientists whose ideas and discoveries shaped Einstein's career. Light the Way, an introduction to "the fastest thing in the universe" and the waves it travels in. E
Mass Wasting/Landslide Animations
This site features Flash animations, MPEG simulations, and Real Media video clips that illustrate subsurface processes and consequences of mass wasting and landslide movement. Visualizations of slumps, flows, falls, and translational and rotational slides show bedrock failure and displacement and subsequent building damage and scarp, flowage zone, and toe formation. These resources portray a variety of modeled and real environments and are suitable for use in lectures, labs, or other teaching ac
Mass Destruction: Truth and Consequences with Hans Blix and Christiane Amanpour
This on-stage conversation with former U.N. weapons inspector Hans Blix, in conversation with CNN correspondent Christiane Amanpour. This event took place on Wednesday, March 17, 2004 in Zellerbach Auditorium, UC Berkeley. For more information, visit the Graduate School of Journalism's event website. Sponsored by: The UCB Graduate School of Journalism, The Goldman Forum on the Press & Foreign Affairs, the Human Rights Center, The Office of the Chancellor and the Open Society Institute. Co-Sp
Dr. Helen Caldicott: The New Nuclear Danger
The New Nuclear Danger: George W. Bush's Military-Industrial Complex Dr. Helen Caldicott Founder of Physicians for social Responsibility Nominee for the Nobel Peace Prize Founder of Nuclear Policy Research Institute This event took place on April 24, 2003 in the Chevron Auditorium, International House, UC Berkeley. Addressing her new book by the same name, world-renowned antinuclear activist Dr. Caldicott looks at the indebtedness of the current Bush administration to the nuclear arms industr
Reactive oxygen species The metabolism that occurs in every cell and is associated with the basic requirements of physiology inevitably leads to the production of reactive intermediates, many of which are capable of reacting with DNA or free dNTPs, which could subsequently be incorporated during synthesis. One particular group of such molecules are called reactive oxygen species (ROS). The essential feature of ROS is the presence of an unpaired electron on an oxygen atom in the molecule, which enables the ROS to rea
The metabolism that occurs in every cell and is associated with the basic requirements of physiology inevitably leads to the production of reactive intermediates, many of which are capable of reacting with DNA or free dNTPs, which could subsequently be incorporated during synthesis. One particular group of such molecules are called reactive oxygen species (ROS). The essential feature of ROS is the presence of an unpaired electron on an oxygen atom in the molecule, which enables the ROS to rea
America In the Second Nuclear Age
The Goldman Forum on the Press & Foreign Affairs and UC Berkeley's Graduate School of Journalism present: America In the Second Nuclear Age The live event took place on April 30, 2003 in Sibley Auditorium, UC Berkeley. A conversation with: Jonathan Schell Author and Fellow at The Nation Institute and Senior Fellow at the Center for Globalization at Yale University Frances FitzGerald Author of Fire In The Lake and Way Out There In The Blue Michael Nacht Dean, Goldman School of Public Policy;
Gravimetric Soil Moisture Protocols
The purpose of this resource is to measure soil water content by mass. Students collect soil samples with a trowel or auger and weigh them, dry them, and then weigh them again. The soil water content is determined by calculating the difference between the wet sample mass and the dry sample mass.
Soil Particle Density Protocol
The purpose of this resource is to measure the soil particle density of each horizon in a soil profile. Students weigh a sample of dry, sieved soil from a horizon, mix it with distilled water and then boil the mixture to remove any air. The mixture cools for a day and then students add water until the volume of the mixture is 100 mL. Students measure the temperature and mass of the final mixture and use the Soil Particle Density Data Sheet to calculate the soil particle density. Three samples sh
GEOLogic: The Big Five Mass Extinctions
GEOLogic questions are puzzles that were developed to support students understanding of geoscience concepts while challenging them to develop better logic and problem solving skills. In this exercise, students are asked to match up the five largest mass extinction events with their relative dates, approximate duration, and severity (percentage of species that became extinct) based on clues given from various perspectives. This activity is appropriate for a high school science class or an introdu
Continental Crust Mass Balance Calculation
This problem set is designed for a junior/senior level course and addresses several quantitative skills that are important in geochemistry and petrology. The exercise uses geochemical data for average quartz monzonite and diorite from the Mineral Mountains in Utah. The students do mass balance calculations and are asked to relate their calculations to continental crust formation. The activity was peer reviewed by participants at the 2004 Teaching Quantitative Skills in a Geoscience Context Works
Masses & Springs
A realistic mass and spring laboratory. Hang masses from springs and adjust the spring stiffness and damping. You can even slow time. Transport the lab to different planets. A chart shows the kinetic, potential, and thermal energy for each spring.
This site helps students answer questions about dinosaurs: What makes a dinosaur a dinosaur? Where did they live? What caused their mass extinction? Students can participate in a virtual dinosaur discovery, follow milestones in dinosaur evolution, and see behind-the-scenes slide-shows of the lab environment where vertebrate specimens are prepared for exhibits and research.
Inelastic Collision of Particles with Structure Model
The EJS Inelastic Collision of Particles with Structure model displays the inelastic collision between two equal "particles" with structure on a smooth horizontal surface. Each particle has two microscopic elements which interact through a massless spring of stiffness k and natural length L. The mass of one of the microscopic elements and the spring length of the connector spring can be changed via textboxes. You can modify this simulation if you have EJS installed by right-clicking within the p
Anisotropic Oscillator Model
The EJS Anisotropic Oscillator model displays the dynamics of a mass connected to two opposing springs. The simulation displays the motion of the mass as well as the trajectory plot. The initial position of the mass can be changed by dragging. The unstretched lengths of the springs can changed as well via textboxes.