Random Analogies
The Hydraulic Analogy
a: A capacitor ~
b: rubber membrane sealed inside a pipe
What: "A capacitor is like a rubber membrane sealed inside a pipe. Water molecules cannot pass through the membrane, but some water can move by stretching the membrane. The analogy clarifies a few aspects of capacitors:" The rest in the wiki article......
Useful?
Writer: Not Stated
LCC:
Where:
Date: Jul 22 2013 6:22 PM
# 3414 Critique Analogy
The Linked Blog Is Outstanding......
a: Eukaryotic flagellum ~
b: holding a snake in your hand
What: "Also the prokaryote flagella are very different in structure from the eukaryotic flagella! Here's a good way to think about bacterial vs eukaryotic flagella. Imagine clamping a rope to a drill bit and turning the drill on. As the drill bit rotates the rope flops around as mechanical energy is transferred from the rotating drill bit. The rope itself is passive, only moving because it is getting energy from the drill bit. That is like the prokaryote flagellum. The eukaryotic flagellum is like holding a snake in your hand. The snake is moving on its own not because of mechanical energy from your hand. The snake is active."
Useful?
Writer: Paul Decelles
LCC: QP
Where:
Date: Sep 18 2014 5:17 PM
# 6404 Critique Analogy
a: Sex chromosomes ~
b: 2 jokers stuck on the end
What: "Each 'set' of chromosomes has been inherited - one set from Mum's egg; one set from Dad's sperm. Imagine that this is like having 2 suits of cards - one red; one black. You would have one red King; one black King; one red Queen; one black Queen. Imagine that the sex chromosomes are like the 2 jokers stuck on the end."An very clear page describing the genetics of twin births in human.
Useful?
Writer: Not Stated
LCC:
Where: Reference Link Has Evaporated
Date: Dec 10 2014 3:47 PM
# 6712 Critique Analogy
Scrambled Egg Brain
a: Concussion ~
b: shaking an egg
What:
"Although helmets are effective in protecting the skull from fractures, the force of the impact can still affect the brain inside the skull. Picture an egg. A concussion is like shaking an egg. As you shake an egg, the yolk (like the brain) moves around inside the shell. If you were to protect the egg by adding a helmet onto the shell, the addition of the helmet would not prevent the yolk from still moving around if you were to shake the egg,"
Useful?
Writer: Farah Hameed, MD
LCC:
Where: Reference Link Has Evaporated
Date: Mar 7 2015 2:16 PM
# 7467 Critique Analogy
