chemical bond
n=5
It Tastes Good Together......
a: Chemical bond ~
b: peanut butter and jelly sandwich
What: "A chemical bond is like peanut butter and jelly sandwich because it's combining two different spreads to make one big yummy sandwich."
Useful?
Writer: Jessica Stevens
LCC:
Where:
Date: Jul 24 2013 6:45 PM
# 3444 Critique Analogy
Some Springs Strong/some Weak...
a: Chemical bond ~
b: spring
What: "A chemical bond is like a spring linking two atoms together to form a A-B molecule. Energy is always required to break bonds."
Useful?
Writer: Johnny Dissidence
LCC:
Where:
Date: Jul 24 2013 6:47 PM
# 3445 Critique Analogy
Boing Boing...
a: Chemical bond ~
b: spring
What: "These electrons are the glue that holds together a chemical
bond between the atoms.A chemical bond is like a spring in that the two nuclei on either end of the bond have
some freedom to move closer or farther apart. There is an optimum, lowest-energy distance for the nuclei to be from each other. If they are any closer, the positive nuclei will start to repeal each other. Farther from each other, you get less energy gain from sharing the electrons. A
bond vibrates when the distance between the nuclei oscillates between the nuclei being too close
together, then too far apart. This is called a stretching vibration."
Useful?
Writer: Not Stated
LCC:
Where:
Date: Jul 24 2013 6:51 PM
# 3446 Critique Analogy
Very Tight It Is......
a: Chemical bond ~
b: the mighty grip of Thor
What: "So I borrowed a neighbor's pipe wrench and got to work. With the right tools, assembling PVC pipe is a snap. It cuts easily with a hand saw, the chemical bond is like the mighty grip of Thor, and it's just flexible enough to slight errors in measurement and tolerance. In a half hour I'd done this":
Useful?
Writer: Not Stated
LCC:
Where:
Date: Jul 24 2013 7:04 PM
# 3447 Critique Analogy
A Critque Of Some Metaphors....
a: Chemical bond ~
b: stick
What: "Scientists always construct models with metaphors as simple as possible, such as a chemical bond is like a stick and bond energy is the energy to break the stick. After they built the basic metaphor of bond energy, they started to adjust its value with dissociation energy, reaction enthalpy change and other kinds of data. With scientific advancements, models of chemical bond and bond energy became more and more complex, especially after the development of molecular orbital theory. But we are still using the simple basic metaphor (chemists' most original dream) in our teaching to explain energy changes in reactions."
The paper is a discussion of metaphors used to teach basic science concepts and their limitations.
Useful?
Writer: Rui Wei and Lei Wang
LCC:
Where: Reference Link Has Evaporated
Date: Jul 24 2013 6:59 PM
# 3448 Critique Analogy
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.