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Topic: Chain reaction


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In the News (Wed 30 May 12)

  
  Nuclear chain reaction - Wikipedia, the free encyclopedia
A nuclear chain reaction occurs when on average more than one nuclear reaction is caused by another nuclear reaction, thus leading to an exponential increase in the number of nuclear reactions.
An uncontrolled chain reaction within a sufficiently large amount of fission fuel (critical mass) can lead to an explosive energy release and is the concept behind nuclear weapons.
The first artificial self-sustaining nuclear chain reaction was initiated by the Metallurgical Laboratory, led by Enrico Fermi, in a racquets court below the bleachers of Stagg Field at the University of Chicago on December 2, 1942 during the Manhattan Project.
en.wikipedia.org /wiki/Nuclear_chain_reaction   (618 words)

  
 Chain reaction - Wikipedia, the free encyclopedia
A chain reaction is a sequence of reactions where a reactive product or biproduct causes more additional reactions.
The neutron-fission chain reaction: a neutron plus a fissionable atom causes a fission resulting in a larger number of neutrons than was consumed in the initial reaction.
Chemical reactions, where a product of a reaction is itself a reactive particle which can cause more similar reactions.
en.wikipedia.org /wiki/Chain_reaction   (138 words)

  
 chain reaction
Proper conditions for a chain reaction depend not only on various external factors, such as temperature, but also on the quantity and shape of the substance undergoing the reaction.
In the case of the fission of a nucleus, the reaction is begun by the absorption of a slow neutron.
In a nuclear fission bomb, a chain reaction is started by forcing together two or more samples of fissionable material, each of less than critical mass, to form one sample of supercritical mass.
www.factmonster.com /ce6/sci/A0811224.html   (394 words)

  
 The First Nuclear Chain Reaction   (Site not responding. Last check: 2007-10-21)
These facts implied the possibility of a chain reaction, similar in certain respects to the reaction which is the source of the sun's energy.
This quantity of uranium necessary for a chain reaction under given conditions is known as the critical mass, or more commonly, the "critical size" of the particular pile.
An atomic chain reaction may be compared to the burning of a rubbish pile from spontaneous combustion.
hep.uchicago.edu /cp1.html   (4322 words)

  
 Polymerase Chain Reaction - Xeroxing DNA
The polymerase chain reaction, now widely used in research laboratories and doctor's offices, relies on the ability of DNA-copying enzymes to remain stable at high temperatures.
The three parts of the polymerase chain reaction are carried out in the same vial, but at different temperatures.
The three steps in the polymerase chain reaction - the separation of the strands, annealing the primer to the template, and the synthesis of new strands - take less than two minutes.
www.accessexcellence.org /AB/IE/PCR_Xeroxing_DNA.html   (735 words)

  
 Uranium-235 Chain Reaction
If the reaction will sustain itself, it is said to be "critical", and the mass of U-235 required to produced the critical condition is said to be a "critical mass".
A critical chain reaction can be achieved at low concentrations of U-235 if the neutrons from fission are moderated to lower their speed, since the probability for fission with slow neutrons is greater.
A fission chain reaction produces intermediate mass fragments which are highly radioactive and produce further energy by their radioactive decay.
hyperphysics.phy-astr.gsu.edu /hbase/nucene/u235chn.html   (141 words)

  
 Lee Haywood's Chain Reaction
Chain Reaction (aka Critical Mass, aka Atoms) is an addictive, multi-player 'board' game.
Once the number of blobs in a cell equals the number of neighbouring cells - 2 in a corner, 3 along an edge and 4 elsewhere - the blobs 'explode', adding 1 blob to each neighbour and leaving the original cell empty.
Any blobs affected by the chain reaction change colour to that of the person making the move - this is how other player's cells are taken.
www.deth.dsl.pipex.com /reaction.html   (554 words)

  
 Filmtracks: Chain Reaction (Jerry Goldsmith)
Chain Reaction: (Jerry Goldsmith) In an attempt to continue the success of the films inspired by the Academy Award-nominated The Fugitive in 1993, Fox's Chain Reaction offers another variation on the good-guy running from a good-natured cop routine.
The detraction from Chain Reaction are the areas in which Goldsmith takes identical material and expands upon it in Executive Decision, including the direct crossover of the trumpets and horns that alternate identically in both films (and most notably in the meaty "Ice Chase" cue here).
Overall, Chain Reaction works better than Executive Decision on album partly because of its own design and partly because nearly all major cues in Chain Reaction made the equally short album (only one major piece is missing).
www.filmtracks.com /titles/chain_reaction.html   (894 words)

  
 GamersInfo.net - - Chain Reaction
"Chain Reaction" by Monster Studios should come with some sort of warning label.
A study in cause and effect physics, Chain Reaction has proven to be fun for my whole family to enjoy.
My son and I hypothesize what might happen if we combine this gear with that band, or if we can build a better way of getting the monster to the launchpad than my husband and daughter are doing on the computer next to us.
www.gamersinfo.net /index.php?art/id:300   (727 words)

  
 Game : Chain Reaction :. GarageGames
Chain Reaction is a brilliantly executed family puzzle game for kids of all ages.
Chain Reaction is a family puzzle game for young and old alike.
Chain Reaction is best played in a quiet place while you?re not intoxicated.
www.garagegames.com /pg/product/view.php?id=7   (719 words)

  
 Chain Reaction: Jem Cohen. By Tom Charity. Cinema Scope Magazine Online
Call it “Present Shock.” A melancholy photo collage of chain stores, malls, and conglomerated concrete spaces unfurls as a single, anonymous ambiance, a desolate spiritual limbo that could be anywhere.
Filming in the darkness using the camera’s eerie green night-vision she looks like a ghost—and though she eventually lands a minimum wage job, there’s little reason to hope it will revitalize her.
What’s scary and depressing is that 20 or 30 years ago Chain would have looked like a nightmare movie.
www.cinema-scope.com /cs21/int_charity_cohen.htm   (3061 words)

  
 CHAIN REACTION
Students will build their own projects, then combine them together into a massive chain reaction.
The governing principles or group behavior will be decided through class collaboration and informed by research into such topics: as swarm intelligence, missile guidance, alchemy, dominos, and artificial life.
The resulting chain reaction could resemble an exquisite corpse, an anarchist wet dream, ant colonies, the Mouse Trap game, or a premeditated sequence of events that would of made Hitchcock green with envy.
www.ultrafuzz.net /chain_reaction.html   (930 words)

  
 Chain Reaction Bicycles
We'll have details shortly regarding how much money was raised (which Chain Reaction will be matching, providing Larry Ellison didn't drop by!), as well as a web page with photos of quite a few riders coming up the hill.
Because Chain Reaction, along with many other better shops, are part of a support team that wants to make sure you have every chance possible to really enjoy cycling.
Please note that we cannot sell bikes through the "mail" or Internet due to a combination of various aspects of our dealer agreements and the fact that bikes really should be purchased locally to ensure proper fitting and follow-up servicing.
www.chainreaction.com   (2663 words)

  
 Chain Reaction TV Show - Chain Reaction Television Show - TV.com
"This isÂ… Chain Reaction, where one word leads to another." These were the words with which Johnny Gilbert introduced the game show Bob Stewart first launched on NBC in January 1980.
Bill Cullen hosted the original Chain Reaction, which featured teams of one contestant and two celebrities each.
Tell the world what you think of Chain Reaction.
www.tv.com /chain-reaction/show/15118/summary.html   (140 words)

  
 Nuclear Chain Reaction   (Site not responding. Last check: 2007-10-21)
This applet simulates what happens in a nuclear chain reaction.
If you want to stop the reaction temporarily to analyze it, just press the "s" button on your keyboard.
If you want to start all over, just press the "n" button, and you get a fresh pile of fishionable material just waiting to explode...
lectureonline.cl.msu.edu /~mmp/applist/chain/chain.htm   (108 words)

  
 Definition: Chain Reaction [A1]
At the C1-level, Chain Reaction may be called from any valid starting position.
If a concept is applied to Chain Reaction, you may be unable to properly execute the call if you follow the cheat definition.
The cheat definition is inconsistent with the definition of Cross Chain Reaction [C3A].
www.ceder.net /def/chain_reaction_a1.php4?language=usa&level=a1   (448 words)

  
 Bapsoft: Chain Reaction for Palm OS   (Site not responding. Last check: 2007-10-21)
Bapsoft: Chain Reaction for Palm OS Chain Reaction is a colorful puzzle game that will keep you on your toes!
Try to cause the largest "chain reaction" to clear the most sets within a single move.
Each level has fewer moves, so you'll need to form larger chain reactions to stay in the game!
www.bapsoft.com /chain.htm   (80 words)

  
 Amazon.co.uk: DVD: Chain Reaction [1996]   (Site not responding. Last check: 2007-10-21)
I have subsequently watched many many other films and recently saw this again on DVD and sadly Chain Reaction still ranks near the top of my list of painful movie experiences.
The plot is convoluted in the extreme and anybody with even a sketchy knowledge of science will find it laughable in places, on top of this the acting is frankly shocking.
Chain Reaction stars Keanu Reeves (Matrix trilogy,The Watcher), Rachel Weisz (The Mummy,The Mummy Returns) and co-stars Morgan Freeman.
www.amazon.co.uk /exec/obidos/ASIN/B00004D0HA   (827 words)

  
 Chain Reaction - Build a Food Chain
In the middle of the screen are a bunch of arrows with empty boxes in between.
You have to make sure the pictures are in the right order to make a food chain.
If you are right, you'll see the animals 'eat' their way along the food chain.
ecokidsonline.com /pub/eco_info/topics/frogs/chain_reaction/index.cfm   (147 words)

  
 The Polymerase Chain Reaction   (Site not responding. Last check: 2007-10-21)
It is hard to exaggerate the impact of the polymerase chain reaction.
The primers are short chains of the four different chemical components that make up any strand of genetic material.
Under most conditions, DNA is double-stranded, consisting of two such nucleotide chains that wind around each other in the famous shape known as the double helix.
www.faseb.org /opar/bloodsupply/pcr.html   (3752 words)

  
 Polymerase Chain Reaction (PCR)   (Site not responding. Last check: 2007-10-21)
The polymerase chain reaction is a technique for quickly "cloning" a particular piece of DNA in the test tube (rather than in living cells like E.
Thanks to this procedure, one can make virtually unlimited copies of a single DNA molecule even though it is initially present in a mixture containing many different DNA molecules.
The author tells how he worked out the principles of the PCR (which won him a Nobel Prize) while driving at night to his weekend retreat in the California mountains.
users.rcn.com /jkimball.ma.ultranet/BiologyPages/P/PCR.html   (427 words)

  
 Chain Reaction
Creepers, peepers and crawlers of the Sonoran Desert gather in the Desert Den.
The stories and activities in this section of Chain Reaction focus on creatures that make their home in Arizona's Sonoran Desert, and on the ASU scientists, scholars and students who study those creatures.
Join ASU scientists as they explore the relationships between people, animals, plants, air, and water in one of the most important environments on Earth - the city.
chainreaction.asu.edu   (227 words)

  
 Chain Reaction Cycles Home Page : Christchurch Mountain Bikes, South Island Road Bike, Mongoose BMX, Giant & Scott ...
at Chain Reaction are dedicated to helping you enjoy your cycling experience.
Please explore this site to find out what we are all about, find links to manufacturers web sites, info on our workshop and special offers and, of course, all the specs and images of the awesome bikes we sell at the Chain Reaction Cycles Riccarton Road shop.
If you are new to cycling and maybe unsure what type of bike would suit you we have some info that will help - click here.
www.chainreaction.co.nz   (189 words)

  
 DH PRODUCTIONS | HOME OF CHAIN REACTION
DH Productions is proud to announce that the Chain Reaction Boxset has arrived.
The Chain Reaction Box Set is being wrapped up at the DH Productions office and will be available at Interbike 2005.
Chain Reaction 5 and DH Productions is featured in the latest issue of Mountain Biking Magazine.
www.dh-productions.com   (1290 words)

  
 BBC Radio 4 - Comedy - Chain Reaction
BBC Radio 4 - Comedy - Chain Reaction
Chain Reaction is a simple idea for a highly entertaining series.
If you've ever thought of writing for Radio 4, take a look at the Writers' Rooom.
www.bbc.co.uk /radio4/comedy/chainreaction.shtml   (246 words)

  
 Shaw EcoVillage   (Site not responding. Last check: 2007-10-21)
Chain Reaction Youth Bike Shop will follow in May/June 2005.
Volunteers and youth leave from Chain Reaction Youth Bike Shop for a ride to various locations throughout the city.
At Chain Reaction, youth, ages 11-19, learn how to repair and recycle used bikes so more people can have safe, affordable and pollution-free transportation.
www.shawecovillage.com   (241 words)

  
 Chain reaction
The objective of the game is to invoke a chain reaction for as long as possible.
Molecules will activate each other if their side atoms are connected.
Left Click on a molecule to start the chain reaction.
www.freeworldgroup.com /onlinegames/gameindex/chain.htm   (59 words)

  
 Chain Reaction (1996)   (Site not responding. Last check: 2007-10-21)
The welcome difference that "Chain Reaction" gives is in its cast.
Morgan Freeman, Keanu Reeves (who's at his best in action) and Rachel Weisz make this film much more engaging to watch than it should be.
Discuss this movie with other users on IMDb message board for Chain Reaction (1996)
us.imdb.com /Title?0115857   (379 words)

  
 Nuclear Chain Reaction Animation | Media Gallery | atomicarchive.com
If the QuickTime plugin is not working, you can download Chain Reaction QuickTime Movie.
A neutron striking a nucleus, causes it to fission and release two more neutrons, which in turn strike other nuclei, producing even more neutrons.
This project is part of the National Science Digital Library funded by the Division of Undergraduate Education, National Science Foundation Grant 0434253
www.atomicarchive.com /Movies/Movie1.shtml   (81 words)

  
 Amazon.com: Video: Chain Reaction (1996)   (Site not responding. Last check: 2007-10-21)
Her and Reeves should of had a love scene I mean come on Andrew Davis..your more focused on your big action scenes then the love connection of the two..god..even after the Chain Reaction accord..GOD!!
I must say that "Chain Reaction" was a little better than I expected it to be, except on the whole it didn't measure up to any of my favorite movies.
Good points of the movie are: 1) The three main actors Keanu Reeves, Morgan Freeman, and Rachel Weisz do a pretty good job in portraying their characters.
www.amazon.com /exec/obidos/tg/detail/-/6304259158?v=glance   (1351 words)

  
 Europes largest Online Bike store - Buy Online.
Chain Reaction Cycles are attending the Cycle Show in London...
Chain Reaction Cycles is ranked No.1 by Hitwise for Category...
© Chain Reaction Cycles & Export Technologies 2005
www.chainreactioncycles.com   (77 words)

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