The Concept of Chemical Reactions
Carl Jung
Swiss psychologist (1875 - 1961)
Labels: science
This is dedicated to my amazing students. The goal is for each and every one of them to feel unstoppable by the time they walk out of the classroom door for the final time in May. This chronicles their journey; their own Chronicles of Self-Actualization.
Labels: science
Labels: air pressure, kelly, science
Labels: golf, math, Sand Lake Elementary, science, teaching elementary, teaching outside
LOS ANGELES - A new planet was discovered orbiting a sun-like star 41 light years away, making it the first known planetary quintet outside our solar system, astronomers said Tuesday.
The newfound planet joins four others circling the nearby star 55 Cancri in the constellation Cancer. Although it resides in the star's so-called habitable zone, a place where liquid water and mild temperatures should exist, it is more like Saturn than Earth and therefore not likely to support life.
Still, scientists have not ruled out the possibility of finding an Earth-like planet within the system as technology improves.
"It's a system that appears to be packed with planets," said co-discoverer Debra Fischer, an astronomer at San Francisco State University.
Ranked fourth from 55 Cancri, the latest planet is about 45 times the mass of Earth and has an orbit of 260 days. It was detected after nearly two decades of observations by ground-based telescopes using the Doppler technique that measures a planet's stellar wobble.
The other planets in the 55 Cancri system were discovered between 1996 and 2004. The innermost planet is believed to resemble Neptune, while the most distant is thought to be Jupiter-like.
Scientists have detected about 250 exoplanets, or planets orbiting a star other than the sun. The 55 Cancri star holds the record for number of confirmed planets. Only one other star is known to have four planets, while several others have three or less.
"We can now say there are stars like the sun that have many worlds around them," said planetary scientist Jonathan Lunine of the University of Arizona, Tucson, who had no role in the discovery.
The research will appear in a future issue of the Astrophysical Journal. It was funded by NASA, the National Science Foundation and the University of California.
The latest discovery shows that our solar system is not unique, scientists said.
"When you look up into the night sky and see the twinkling lights of stars, you can imagine with certainty that they have their own complement of planets," said astronomer Geoff Marcy of the University of California, Berkeley, who was part of the research.
___
On the Net:
NASA: http://www.nasa.gov
Labels: Sand Lake Elem, science, teaching elementary
STOCKHOLM, Sweden - France's Albert Fert and German Peter Gruenberg won the 2007 Nobel Prize in physics on Tuesday for a discovery that lets billions of computer users store reams of data on computer hard drives.
The technology "can also be considered one of the first real applications of the promising field of nanotechnology," which deals with extremely small devices, the Royal Swedish Academy of Sciences said in its citation.
"Applications of this phenomenon have revolutionized techniques for retrieving data from hard disks," the prize citation said. "The discovery also plays a major role in various magnetic sensors as well as for the development of a new generation of electronics."
In 1988 Fert and Gruenberg each independently discovered a physical effect called giant magnetoresistance. In this effect, very weak changes in magnetism generate larger changes in electrical resistance. This is how information stored magnetically on a hard disk can be converted to electrical signals that the computer reads.
"The development of computers showed in the last years that this was an important contribution," Gruenberg told Sweden's TV4 channel shortly after being told he was sharing the prize with Fert.
Last year, Americans John C. Mather and George F. Smoot won for their work examining the infancy of the universe, studies that have aided the understanding of galaxies and stars and increasing support for the Big Bang theory of the beginning of the universe.
On Monday, two American scientists, Mario R. Capecchi and Oliver Smithies, and Briton Sir Martin J. Evans, won the 2007 Nobel Prize in medicine for groundbreaking discoveries that led to a powerful technique for manipulating mouse genes.
Prizes for chemistry, literature, peace and economics will be announced through Oct. 15.
The peace award is announced in Oslo, while the other prizes are announced in Stockholm. The prizes, each of which carries a cash prize of $1.5 million, were established in the will of Swedish industrialist Alfred Nobel.
The Nobel prizes are always presented to the winners on the Dec. 10 anniversary of the death of its creator.
___
Labels: elementary education, physics, Sand Lake Elem, science
Labels: constant belief, elementary education, math, Sand Lake Elem, science
Labels: American history, educational programming, Sand Lake Elementary, science, tv
Labels: America, China, engineering, GDP, Hilarious Student Bloopers, India, making heroes, math, OCPL, Ovid, Richard Lederer, Sand Lake Elem, science, solving life's problems, teaching, world power
Labels: education, elementary education, Kepler, science, space, Supernova
Labels: elementary education, From NASA - What am I?, Jeff Richards, science
![]() cumulonimbus | |
Definition: | (noun) An extremely dense, vertically developed cumulus with a relatively hazy outline and a glaciated top extending to great heights, usually producing heavy rains, thunderstorms, or hailstorms. |
Synonyms: | thundercloud, cumulonimbus cloud |
Usage: | The engineer considered all of the dangers, such as lightning and high winds, that an airplane would be exposed to should it fly through a cumulonimbus. |
Labels: cumulonimbus, science, vocabulary, weather
Labels: Becoming Independent Learners, Belle, Briana, elementary education, inquiry learning, Kenny, LL, Mahrukh, Malcolm, math, place value, Ryan, science, Serena, Summer, Technology in the Classroom
Labels: "Describe Design Do Determine", elementary education, guided inquiry, guided teaching, inquiry learning, math, open inquiry, science, social studies