An example of an analogy used to explain science:
MC: "But the earth's magnetosphere, the magnetic field, should protect us from the worse of these storms, right?"
JAK: "Absolutely, it deflects the particles, and the plasma from the sun, around the earth. It's like a stone in a stream of fast moving water, the water sort of goes around the stone, so all the time we have this magnetosphere protecting us like bubble wrap, we're going to survive, it's not going to be sort of a complete disaster."
Marnie Chesterton was talking to Prof. Jim Al-Khalili (Distinguished Professor Emeritus in Physics, University of Surrey) on an episode of BBC Inside Science.
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Prof. Al-Khalili also used a simile, in referring to the magnetosphere as protecting us like bubble wrap.
Read about examples of science similes