Animal Summer Games: Wildebeest Survival Race
Wildebeest in the millions make their annual migration through East Africa. (02:42)
Science Bulletins: Seeking Spiders—Biodiversity on a Different Scale
Recognizing the tiny species of any ecosystem is hugely important for defining its overall diversity. But miniscule forms of life are often invisible to conservation efforts because they have yet to be described in detail. Dr. Norman Platnick of the American Museum of Natural History is leading an important initiative to discover biodiversity on a smaller scale. Having devoted decades to the study of spiders, Dr. Platnick now leads a team of 45 investigators from 10 countries in the largest-ever
BASF CEO Bock: Asia lull is big surprise
July 26 - Chief Executive Kurt Bock predicts a flat performance for BASF in the second half on softening in Asia and continued weakness in Europe.
The Gilder Lehrman Institute of American History: Op-Ed Writing with Professor Jon Zimmerman
Description not set
Batteries and Energy Storage 101
By: icamp2012school Chunmei Ban, National Renewable Energy Laboratory
2.1 Key themes and learning outcomes The key themes of Part A are: company; business; capital. After studying Part A, you should be able to: describe in general terms what a business is; demonstrate an appreciation of the concept of capital. Visit the College of Law website
1.7.4: Is a picture worth a thousand words?
This unit looks at a wide variety of ways of comparing prices and the construction of a price index. You will also look at the Retail Price Index (RPI) and the Consumer Price Index (CPI), indices used by the UK Government to calculate the percentage by which prices in general have risen over any given period. You wil also look at the important statistical and mathematical ideas that contribute to the construction of a price index.
Acknowledgements Grateful acknowledgement is made to the following sources for permission to reproduce material in this unit: The content acknowledged below is Proprietary and used under licence (not subject to Creative Commons licence). See Terms and Conditions. Getty photo disc 1. Join the 200,000 students currently studying with Author(s):
Unit image
Don't miss out:
Dough bowl attributed to Monica Silva
"Black on tan dough bowl. Designs exterior -- reddish orange base and interior of bowl. No signature on bowl. Good [condition] -- several chips on rim." -- From the Museum catalog.,Attributed to Monica Silva,Gift by John A. Morgan, 2002
Santa Ana olla
"Polychrome olla -- orange and black on tan slip. Single upper framing line -- orange designs outlined in black. Two lower framing lines -- no breaks in lines. Concave bottom. No signature on olla. Good [condition] one small chip on rim." -- From the Museum catalog.,Attributed to Dora Montoya,Gift by John A. Morgan, 2002
San Ildefonso jar
"Highly polished black jar. No designs. Signature on bottom "Maria Poveka" Condition:
Excellent"-- From the Museum catalog.,Gift by John A. Morgan, 2002
San Ildefonso bowl
"Black on black highly polished incurved rim bowl - matte design. Signed "Maria & Santana"
Condition:Excellent"-- From the Museum catalog.,Gift by John A. Morgan, 2002
San Ildefonso jar
"Jar - black highly polished. Design around top half of jar. Signature on bottom "Marie & Julian" Condition: Good - Few minor scratches on side"--From the Museum catalog.,Gift by John A. Morgan, 2002
Miniature seed jar signed Garnet Pavatea
"A very small seed jar. Polished black on cream color. Black design to half way down pot. Signature of Garnet Pavatea on the bottom. Excellent [condition]" -- From the Museum catalog,Gift by John A. Morgan, 2002
San Ildefonso olla
"Olla - black on red stone polished. Black rim - designs to just below mid-section of pot encased in black lines. No signature on pot. San Idlefonso written in pencil on bottom Condition:Good - several abrasive scratches"-- From the Museum catalog.,Gift by John A. Morgan, 2002
Jar attributed to Sarafina Tafoya
"Jar - highly polished black water jar. Five bear paw designs on shoulder evenly spaced. No signature on pot Condition: Good - scratches on rim, 4 white spots on side could be paint"-- From the Museum catalog.,Gift by John A. Morgan, 2002
Zia jar
"Olla -- orange and black on tan with birds and floral designs -- black rim with 2 framing lines below design area; concave base. Good [condition]-- 3 chips on rim, cracks coming from chips, clouding inside."-- From the Museum catalog.,Gift by John A. Morgan, 2002
Acknowledgements The content acknowledged below is Proprietary (see terms and conditions) and is used under licence. MC Masterchef by Colin Cookman All other materials included in this unit are derived from content originated at the Open University.
Unit Image
3.3 Scattering from a finite square step
Scattering is fundamental to almost everything we know about the world, such as why the sky is blue. Tunnelling is entirely quantum-mechanical and gives rise to such phenomena as nuclear fusion in stars. Examples and applications of both these fascinating concepts are investigated in this unit.
Next Steps
This unit is intended to develop your understanding of Newtonian mechanics in relation to oscillating systems. In addition to a basic grounding in calculus, this unit assumes that you have some understanding of how to solve second-order linear constant-coefficient differential equations; how to take the dot product of two vectors; of solving statics problems; and of applying Newton's second law to mechanical problems.
